You searched for +publisher:"Oregon State University" +contributor:("Weber, Dale W.").
Showing records 1 – 10 of
10 total matches.
No search limiters apply to these results.
Oregon State University
1.
Nichols, Wade Taylor.
Wheat versus corn and barley in beef finishing rations.
Degree: MS, Animal Science, 1988, Oregon State University
URL: http://hdl.handle.net/1957/21855 
Subjects/Keywords: Beef cattle – Feeding and feeds
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nichols, W. T. (1988). Wheat versus corn and barley in beef finishing rations. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/21855
Chicago Manual of Style (16th Edition):
Nichols, Wade Taylor. “Wheat versus corn and barley in beef finishing rations.” 1988. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/21855.
MLA Handbook (7th Edition):
Nichols, Wade Taylor. “Wheat versus corn and barley in beef finishing rations.” 1988. Web. 04 Mar 2021.
Vancouver:
Nichols WT. Wheat versus corn and barley in beef finishing rations. [Internet] [Masters thesis]. Oregon State University; 1988. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/21855.
Council of Science Editors:
Nichols WT. Wheat versus corn and barley in beef finishing rations. [Masters Thesis]. Oregon State University; 1988. Available from: http://hdl.handle.net/1957/21855
Oregon State University
2.
DelCurto, Timothy.
Supplementation with lasalocid three times weekly to stocker cattle on pasture.
Degree: MS, Animal Science, 1986, Oregon State University
URL: http://hdl.handle.net/1957/40612
► Two experiments were conducted to study the efficacy of feeding lasalocid to cattle on pasture on a three times weekly basis. In experiment 1, 72…
(more)
▼ Two experiments were conducted to study the efficacy
of feeding lasalocid to cattle on pasture on a three times
weekly basis. In experiment 1, 72 crossbred yearling
steers were stratified across a randomized block design of
12 pens including three replications of four treatments.
Treatments consisted of: (1) .45 kg ground corn per head
per day; (2) .45 kg ground corn per head three times
weekly on Monday, Wednesday, and Friday; (3) .45 kg ground
corn with 200 mg lasalocid per head per day; (4) .45 kg
ground corn with 467 mg lasalocid per head three times
weekly. Lasalocid fed everyday increased (P<.05) average
daily gains (ADG) by 10%. Lasalocid fed three times
weekly did not have a significant effect on ADG.
In experiment 2, six rumen fistulated heifers were
allotted randomly to two 3x3 Latin Squares. Heifers
consumed a diet of mid-bloom alfalfa hay ad libitum plus
the treatment supplements. Treatments consisted of: (1)
.45 kg ground corn per head per day; (2) .45 kg ground
corn with 200 mg lasalocid per head per day; (3) .45 kg
ground corn with 467 mg lasalocid per head three times
weekly. Gas chromatographic analysis indicated that
lasalocid fed daily or on a three times weekly basis did
not change the acetate to propionate ratio (P>.10). Both
lasalocid treatments increased (P<.05) the butyrate to
propionate ratio. Analysis of all C2-05 rumen metabolites
indicate that only butyrate was significantly affected by
lasalocid treatments. The addition of lasalocid on a
daily basis decreased (P<.05) the pH within the rumen.
After centrifugation, high performance liquid chromatographic
(HPLC) analysis failed to detect lasalocid in
the rumen fluid.
Feeding lasalocid on a three times weekly basis did
not appear practical based on weight gain responses.
Measurement of ruminal VFA and pH indicate that while
slight differences exist between the two lasalocid
treatments, they do not correlate with the lack of weight
gain response with animals fed three times weekly.
Advisors/Committee Members: Weber, Dale W. (advisor).
Subjects/Keywords: Rumen fermentation
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
DelCurto, T. (1986). Supplementation with lasalocid three times weekly to stocker cattle on pasture. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/40612
Chicago Manual of Style (16th Edition):
DelCurto, Timothy. “Supplementation with lasalocid three times weekly to stocker cattle on pasture.” 1986. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/40612.
MLA Handbook (7th Edition):
DelCurto, Timothy. “Supplementation with lasalocid three times weekly to stocker cattle on pasture.” 1986. Web. 04 Mar 2021.
Vancouver:
DelCurto T. Supplementation with lasalocid three times weekly to stocker cattle on pasture. [Internet] [Masters thesis]. Oregon State University; 1986. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/40612.
Council of Science Editors:
DelCurto T. Supplementation with lasalocid three times weekly to stocker cattle on pasture. [Masters Thesis]. Oregon State University; 1986. Available from: http://hdl.handle.net/1957/40612
Oregon State University
3.
Albro, Jonathan D.
Effect of soybean protein supplements with low quality roughage on performance and digestive characteristics of weaned beef steers.
Degree: MS, Animal Science, 1992, Oregon State University
URL: http://hdl.handle.net/1957/36551
Subjects/Keywords: Beef cattle – Feeding and feeds
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Albro, J. D. (1992). Effect of soybean protein supplements with low quality roughage on performance and digestive characteristics of weaned beef steers. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/36551
Chicago Manual of Style (16th Edition):
Albro, Jonathan D. “Effect of soybean protein supplements with low quality roughage on performance and digestive characteristics of weaned beef steers.” 1992. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/36551.
MLA Handbook (7th Edition):
Albro, Jonathan D. “Effect of soybean protein supplements with low quality roughage on performance and digestive characteristics of weaned beef steers.” 1992. Web. 04 Mar 2021.
Vancouver:
Albro JD. Effect of soybean protein supplements with low quality roughage on performance and digestive characteristics of weaned beef steers. [Internet] [Masters thesis]. Oregon State University; 1992. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/36551.
Council of Science Editors:
Albro JD. Effect of soybean protein supplements with low quality roughage on performance and digestive characteristics of weaned beef steers. [Masters Thesis]. Oregon State University; 1992. Available from: http://hdl.handle.net/1957/36551
Oregon State University
4.
Blount, David Kenneth.
Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon.
Degree: MS, Animal Science, 1990, Oregon State University
URL: http://hdl.handle.net/1957/38127
► A trial was conducted May 1 to September 4, 1989 at the Eastern Oregon Agricultural Research Center (EOARC) Burns, OR to examine the effects of…
(more)
▼ A trial was conducted May 1 to September 4, 1989 at the Eastern
Oregon Agricultural Research Center (EOARC) Burns, OR to examine the
effects of strip or continuous grazing management on the diet and
performance of steers grazing native flood meadows. The objective was
to determine if strip grazing would be a more efficient means of
grazing management than continuous grazing.
The experiment was designed to test diet quality, botanical
composition of the diet, daily dry matter (DM) intake and performance
of yearling steers. Eighty yearling steers weighing 253±17 kg were
selected from cattle at the Squaw Butte Experiment Station. The
experimental design was a randomized complete block, with blocking
based on past forage production. Treatments were continuous or strip
grazing. A representative meadow of approximately 22.4 ha was divided
into four equal pastures. Continuous grazing steers had access to 5.6
ha pastures for the duration of the study. Animals on strip grazing
were confined to an area that was estimated to provide 5-7 days of
forage using New Zealand portable electric fencing. Strip sizes were
predetermined based on standing forage crop. Steers were not allowed
to graze more than 7 days in any one strip. Diet quality was estimated
from bi-weekly esophageal samples. Extrusa was collected from 4
esophageal fistulated steers per treatment on two consecutive days.
Collections were timed to coincide with the mid point of the strip
being currently grazed. Samples were pooled by collection dates and
analyzed for CP and IVOMD. Dietary OM intake was estimated from biweekly,
24 hr total fecal collections starting the day following
esophageal collections. Total DM fecal output from 6 fecal collection
steers per treatment was corrected with the %IVOMD to predict actual DM
intake. Diet botanical composition was estimated by microhistological
examination of fecal sub-samples. Animal weight gains were recorded
bi-weekly. Experimental animals grazed together at all times during
the trial. Initial stocking densities were 2.0 AU/ha in each treatment
pasture. Steers were counted as .56 AU with 20 steers grazing 5.6 ha
pastures. The average strip size over the trial was .46 ha; and
depending upon standing crop of forage, ranged from .23-1.15 ha.
Record moisture from snowmelt and rainfall resulted in greater than
expected standing crop of forage. This growth resulted in under
stocking of both treatment pastures. A 1.08 ha block was removed as
hay from the higher forage producing strip treatment block to adjust
for over abundant forage. This resulted in a total mean strip grazed
area of 4.37 ha or 22% less than continuous grazing. Actual grazing
density means over the summer were 2.6 AU/ha for continuous and 3.15
AU/ha for the strip treatment. Available forage was determined from
clipped plots on a DM basis and expressed as herbage allowance at a
given point in time. Herbage allowance for steers in continuous grazed
pastures ranged from 405-1153 kg/AU when measured at bi-weekly
…
Advisors/Committee Members: Weber, Dale W. (advisor).
Subjects/Keywords: Beef cattle – Oregon
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Blount, D. K. (1990). Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/38127
Chicago Manual of Style (16th Edition):
Blount, David Kenneth. “Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon.” 1990. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/38127.
MLA Handbook (7th Edition):
Blount, David Kenneth. “Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon.” 1990. Web. 04 Mar 2021.
Vancouver:
Blount DK. Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon. [Internet] [Masters thesis]. Oregon State University; 1990. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/38127.
Council of Science Editors:
Blount DK. Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon. [Masters Thesis]. Oregon State University; 1990. Available from: http://hdl.handle.net/1957/38127
Oregon State University
5.
Campbell, Donald T.
Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring.
Degree: MS, Animal Science, 1989, Oregon State University
URL: http://hdl.handle.net/1957/38403
► Two concurrent studies were conducted to evaluate the effect of selenium (Se) supplementation on beef cows. Trial 1 was designed to evaluate the safety and…
(more)
▼ Two concurrent studies were conducted to evaluate the effect
of selenium (Se) supplementation on beef cows. Trial 1 was designed
to evaluate the safety and efficacy of two intrareticular Se supplementation
delivery systems. Trial 2 was designed to evaluate the
transfer of Se across the placenta and through the colostrum in beef
cows.
One hundred fifty, selenium (Se) deficient, pregnant crossbred
beef cows were assigned to 1 of 4 treatment groups: group A, negative
control; group B, 1 Dura-Se bolus at 0 and 119 d; group C, 1 Dura-se
at 0 d; and group D, 2 Permasel pellets at 0 d. Cattle were maintained
on selenium deficient pastures or forages prepared from these
pastures. Blood samples were collected from cows before treatment
administration (0 time) and thereafter at 28, 52, 119, and 220 d.
Calves from cows selected for data collection above were sampled at
birth. Blood samples were collected from calves, prior to suckling,
and were analyzed for whole blood selenium (WBSe) concentration.
Colostrum samples were collected from dams and analyzed for total Se
concentration. Additional samples were collected from calves 24-48
hours post suckling and analyzed for WBSe concentration and serum
creatine kinase (CK) level. Weight and health data were recorded on
all cows at each blood collection date. Birth weight, sex, and
health were recorded on all calves at parturition.
Whole blood selenium concentration of cows from all supplemented
groups were significantly higher (P<.001) than controls at all sample
dates after treatments began. By the end of the 220 d study, treatment
group B attained significantly higher (P<.001) WBSe concentrations
than any other group. Calves from all Se treated groups had
significantly (P<.001) higher WBSe concentrations, both pre- and
post-suckling, than controls. Post-suckle WBSe concentration of
calves were not significantly (P>.05) different than pre-suckle
concentrations in any of the groups. Colostrum selenium concentration
from Se supplemented cows were significantly (P.001) higher
than from control cows. No difference (P>.05) was determined in
plasma CK activities or birth weights between groups of calves.
Seven animals died, two of which showed signs of Se deficiency.
Necropsy of 5 calves provided no evidence linking these deaths to
selenium treatments. No differences (P>.05) in mortality between
groups were determined.
Advisors/Committee Members: Weber, Dale W. (advisor).
Subjects/Keywords: Selenium in animal nutrition
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Campbell, D. T. (1989). Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/38403
Chicago Manual of Style (16th Edition):
Campbell, Donald T. “Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring.” 1989. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/38403.
MLA Handbook (7th Edition):
Campbell, Donald T. “Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring.” 1989. Web. 04 Mar 2021.
Vancouver:
Campbell DT. Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring. [Internet] [Masters thesis]. Oregon State University; 1989. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/38403.
Council of Science Editors:
Campbell DT. Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring. [Masters Thesis]. Oregon State University; 1989. Available from: http://hdl.handle.net/1957/38403
Oregon State University
6.
Hill, Thomas William, 1954-.
Evaluation of creep feeding and two different postweaning rations on steers of three different frame types relative to growth, carcass traits and economics.
Degree: MS, Animal Science, 1990, Oregon State University
URL: http://hdl.handle.net/1957/15269
Subjects/Keywords: Calves – Feeding and feeds
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hill, Thomas William, 1. (1990). Evaluation of creep feeding and two different postweaning rations on steers of three different frame types relative to growth, carcass traits and economics. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/15269
Chicago Manual of Style (16th Edition):
Hill, Thomas William, 1954-. “Evaluation of creep feeding and two different postweaning rations on steers of three different frame types relative to growth, carcass traits and economics.” 1990. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/15269.
MLA Handbook (7th Edition):
Hill, Thomas William, 1954-. “Evaluation of creep feeding and two different postweaning rations on steers of three different frame types relative to growth, carcass traits and economics.” 1990. Web. 04 Mar 2021.
Vancouver:
Hill, Thomas William 1. Evaluation of creep feeding and two different postweaning rations on steers of three different frame types relative to growth, carcass traits and economics. [Internet] [Masters thesis]. Oregon State University; 1990. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/15269.
Council of Science Editors:
Hill, Thomas William 1. Evaluation of creep feeding and two different postweaning rations on steers of three different frame types relative to growth, carcass traits and economics. [Masters Thesis]. Oregon State University; 1990. Available from: http://hdl.handle.net/1957/15269
Oregon State University
7.
Hopman, Bruce T.
The effect of lasalocid on fall calving beef cows.
Degree: MS, Animal Science, 1985, Oregon State University
URL: http://hdl.handle.net/1957/40215
► Forty-two fall-calving crossbred cows were equally allotted to six pens of seven cow-calf pairs each. Two treatments (0 and 200 mg lasalocid/head/day) with three replications…
(more)
▼ Forty-two fall-calving crossbred cows were equally
allotted to six pens of seven cow-calf pairs each. Two
treatments (0 and 200 mg lasalocid/head/day) with three
replications were used to determine the effects of
lasalocid on fall-calving beef cows. The cows were fed
grass hay, haylage and pasture ad libitum. The cow-calf
pairs were weighed every 28 days during the 196-day trial.
Milk yield was determined three times using the weigh-suckle-
weigh technique and the milk was analyzed for fat
and protein. Average days open from parturition to
conception was also determined for the cows.
There was no difference between treatment for cow
weight and body condition (scale 0-9) change. The cows
lost an average of 9.5 kg throughout the trial. A slight
tendency towards increased milk production was observed in
the lasalocid-treated cows, but this was not significant.
There were no significant differences between treatments or
time for percent milk fat and protein. Calf gain was not
affected by treatment with average daily gain being 0.77 kg
per day for both lasalocid and control calves. Average days open was also not affected by the use of lasalocid.
However, there was a numerical advantage of five days in
favor of the lasalocid-fed cows. It is possible that the
lasalocid cows may have eaten less, thus making them more
efficient; but this was not measured. No detrimental
effects were observed on lactation, weight change or
reproductive performance with the use of lasalocid.
Advisors/Committee Members: Weber, Dale W. (advisor), Holtan, Donald (committee member).
Subjects/Keywords: Cattle – Feed utilization efficiency
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hopman, B. T. (1985). The effect of lasalocid on fall calving beef cows. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/40215
Chicago Manual of Style (16th Edition):
Hopman, Bruce T. “The effect of lasalocid on fall calving beef cows.” 1985. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/40215.
MLA Handbook (7th Edition):
Hopman, Bruce T. “The effect of lasalocid on fall calving beef cows.” 1985. Web. 04 Mar 2021.
Vancouver:
Hopman BT. The effect of lasalocid on fall calving beef cows. [Internet] [Masters thesis]. Oregon State University; 1985. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/40215.
Council of Science Editors:
Hopman BT. The effect of lasalocid on fall calving beef cows. [Masters Thesis]. Oregon State University; 1985. Available from: http://hdl.handle.net/1957/40215
Oregon State University
8.
Pirelli, G. J. (Gene J.).
Scrotal circumference measurements as an indicator of growth in the male beef animal.
Degree: MS, Animal Science, 1979, Oregon State University
URL: http://hdl.handle.net/1957/42436
► Testes size as an indicator of future growth was examined in a total of 45 bull calves from spring calves born in 1978 and 1979.…
(more)
▼ Testes size as an indicator of future growth was examined
in a total of 45 bull calves from spring calves born in 1978
and 1979. Scrotal circumference measurements were used as the
physical indicator of testicle size in the live animal.
Growth traits studied were preweaning average daily gain,
weaning weight, feedlot gain, market weight and weight per
day of age. Scrotal circumference measurements, and body
weights were taken at birth, midpoint of the nursing period,
and immediately before castration. Regression coefficients
were calculated using preweaning growth traits as dependent
on scrotal circumference.
Birth scrotal circumference was significantly related
only to mid-nursing weight (P<.05). Mid-nursing scrotal
circumference significantly predicted (P<.01) mid-nursing
to weaning growth rate, and weaning weight. Correlation
coefficients calculated for mid-nursing circumference and
growth traits were high and positive. Adjusting mid-nursing
scrotal circumference for body weight decreased the correlation coefficients. Correlation coefficients calculated
for the relationship of body weight and growth were high
and positive as expected, and similar to values between
scrotal circumference and growth.
Twenty-three of the castrated animals were utilized
in a postweaning feeding trial in order to examine the
relationship of preweaning scrotal circumference to
postweaning growth. Relationships between preweaning
testes size and feedlot gains were nonsignificant.
Measurements of scrotal circumference taken at mid-nursing
and castration were both significantly correlated (P<.01)
with market weight and weight per day of age, and so could
be used as indicators of final weight.
Birth testes size was a poor predictor of market traits
as correlations were low. As expected, midpoint weight
and weaning weight were highly correlated (P<.01) with end
of feedlot trial weight.
Early measurements such as at birth are not as valuable
in making growth predictions as are later measurements.
Findings indicate that measurements are best used to obtain
a ranking of the animals on a within year basis. Finally,
results suggest that scrotal circumference or body weight
are of equal value in predicting future performance in male
beef cattle and can be used as a management tool or practice.
Advisors/Committee Members: Weber, Dale W. (advisor), Thomas, Dave (committee member).
Subjects/Keywords: Beef cattle
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pirelli, G. J. (. J. ). (1979). Scrotal circumference measurements as an indicator of growth in the male beef animal. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/42436
Chicago Manual of Style (16th Edition):
Pirelli, G J (Gene J ). “Scrotal circumference measurements as an indicator of growth in the male beef animal.” 1979. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/42436.
MLA Handbook (7th Edition):
Pirelli, G J (Gene J ). “Scrotal circumference measurements as an indicator of growth in the male beef animal.” 1979. Web. 04 Mar 2021.
Vancouver:
Pirelli GJ(J). Scrotal circumference measurements as an indicator of growth in the male beef animal. [Internet] [Masters thesis]. Oregon State University; 1979. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/42436.
Council of Science Editors:
Pirelli GJ(J). Scrotal circumference measurements as an indicator of growth in the male beef animal. [Masters Thesis]. Oregon State University; 1979. Available from: http://hdl.handle.net/1957/42436
Oregon State University
9.
Buehner, Heidi Renata.
Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions.
Degree: M.Ag., Animal Science, 1986, Oregon State University
URL: http://hdl.handle.net/1957/40613
► Two management systems were evaluated in terms of the effects on cow condition score and body weight changes and calf growth rates. The management systems…
(more)
▼ Two management systems were evaluated in terms of the effects on
cow condition score and body weight changes and calf growth rates. The
management systems evaluated were winter supplementation of energy,
winter creep feeding and delayed weaning. The calves used in this study
were born in September and October of 1981. The 48 cows and their
calves were brought to a feedlot situation in December and allotted to
four groups to allow controlled feeding of an energy or a non-energy
supplement to the cows and a creep feed to the allotted calves. The
cows receiving 3.64 kg rolled barley/head/day were not different in
either body weight or condition score (1 to 5 condition score scale)
from the cows fed a protein (non-energy) supplement which was fed at a
level to provide the equivalent protein intake for all the cows. That
is, there was no effect of the additional energy present in the rolled
barley on the performance of the cows or their nursing calves. Creep
feeding had a significant effect on calf end weight (P=.001) and calf
rate of gain (P=.001). The creep fed calves were on the average 12.95
kg heavier at the end of the trial and gained an average of 9.34 kg more
than the calves not creep fed. Creep feeding, though, in today's
marketplace may not be a cost effective alternative for the commercial
beef producer.
Delayed weaning (DW) significantly increased the ADG of calves
between the ages of 196 to 266 days of age (P=.001). Steers gained
significantly faster than the heifers during this period (P=.001). DW
calves did not have a significantly higher ADG than the control (C)
calves during the postweaning period (to yearling age), but the DW ADG
from 196 days of age to yearling age was still significantly greater
than the C calves (P=.001). Postruminal digestion of milk during the
experimental period may be the reason for the additional gains by the DW
calves.
Delayed weaning of fall born calves appears to be a sound
management alternative under western
Oregon conditions. Winter
supplementation of cows and/or calves during the winter months did not
realize significant changes in body weight and condition or the
profitability of the sale of beef calves.
Advisors/Committee Members: Weber, Dale W. (advisor), Rowe, K. E. (committee member).
Subjects/Keywords: Beef cattle – Oregon
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Buehner, H. R. (1986). Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/40613
Chicago Manual of Style (16th Edition):
Buehner, Heidi Renata. “Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions.” 1986. Masters Thesis, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/40613.
MLA Handbook (7th Edition):
Buehner, Heidi Renata. “Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions.” 1986. Web. 04 Mar 2021.
Vancouver:
Buehner HR. Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions. [Internet] [Masters thesis]. Oregon State University; 1986. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/40613.
Council of Science Editors:
Buehner HR. Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions. [Masters Thesis]. Oregon State University; 1986. Available from: http://hdl.handle.net/1957/40613
Oregon State University
10.
Babar, Shakeel.
Characterization of adenovirus isolated from sheep in Oregon.
Degree: PhD, Comparative Veterinary Medicine, 1995, Oregon State University
URL: http://hdl.handle.net/1957/34486
► Six 3 to 4 weeks old, cesarian-derived lambs were inoculated with ovine an adenovirus isolate 475N. Inoculated lambs showed moderate clinical signs of respiratory distress,…
(more)
▼ Six 3 to 4 weeks old, cesarian-derived lambs were inoculated with ovine an
adenovirus isolate 475N. Inoculated lambs showed moderate clinical signs of respiratory
distress, conjunctivitis, and loose feces during the 10-day observation period. Virus was
detected from nasal and conjunctival swabs starting on postinoculation day (PID) 2.
Virus was detected in the feces in a inconsistent fashion. At necropsy, virus was present
in the lung, tonsils, and bronchial and mediastinal lymph nodes of lambs necropsied on
PID 5 and 7. Tissue samples from gastrointestinal tract and kidney were negative for
the virus. Presence of virus in the feces was believed to be from replication in tonsillar
tissue. At necropsy, lambs showed signs of pneumonia and numerous intranuclear
inclusion bodies were detected in affected lung tissue. Virus neutralizing antibodies
appeared at low levels in serum on PID 6 and reached higher levels by PID 10.
Six ovine adenovirus prototype species, three uncharacterized ovine and bovine
adenoviruses isolates and two uncharacterized llama adenoviruses isolates were digested
with four different restriction enzymes. Digested viral DNA was separated in 0.7%
agarose gels. The enzymes Barn HI, Eco RI, Hind III, and Pst I digested viral DNA and
produced 2-10 bands. The profile of the band distribution permitted the differentiation
of the viruses under study. However, further studies using multiple isolates of each
species are required to determine if this procedure will efficiently distinguish different
species of ruminant adenoviruses.
Ten adenoviruses from sheep (including the six prototype species), one from
bovine and one from llama were studied by virus neutralization test to determine their
degree of antigenic similarities. Reciprocal virus neutralization tests were performed and
the degree of antigenic similarities, i.e., strain differentiation was determined by criteria
established by the International Committee for the Nomenclature of Viruses. Isolates
32CN (a bovine adenovirus) and 475N (an ovine adenovirus) were antigenically identical
and not neutralized by any of the prototype species antiserum. They are candidates for
a new species of ruminant adenoviruses. Ovine adenovirus isolate 47F was shown to be
a member of OAV-5 species while the llama adenovirus strain represents a newly
recognized species for this animal.
Advisors/Committee Members: Mattson, Donald E. (advisor), Weber, Dale W. (committee member).
Subjects/Keywords: Adenoviruses – Oregon
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Babar, S. (1995). Characterization of adenovirus isolated from sheep in Oregon. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/34486
Chicago Manual of Style (16th Edition):
Babar, Shakeel. “Characterization of adenovirus isolated from sheep in Oregon.” 1995. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/34486.
MLA Handbook (7th Edition):
Babar, Shakeel. “Characterization of adenovirus isolated from sheep in Oregon.” 1995. Web. 04 Mar 2021.
Vancouver:
Babar S. Characterization of adenovirus isolated from sheep in Oregon. [Internet] [Doctoral dissertation]. Oregon State University; 1995. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/34486.
Council of Science Editors:
Babar S. Characterization of adenovirus isolated from sheep in Oregon. [Doctoral Dissertation]. Oregon State University; 1995. Available from: http://hdl.handle.net/1957/34486
. 
Open Access Theses and Dissertations