Zobrazeno 1 - 10 of 23 pro vyhledávání: '"C.G. Woelfel"'
1
Forage and Feed Testing Programs – Problems and Opportunities
Autor: C.G. Woelfel, C.E. Coppock, Ronald L. Belyea
Publikováno v: Journal of Dairy Science. 64:1625-1633
A survey of the 50 United States and 9 Canadian provinces showed that most offer a feed testing service. During the past 5 yr, there has been a large increase in the array of tests available to dairymen and in the number of forages and feeds submitte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68442ebec6dbe6f6dc0c71c928caf13b
https://doi.org/10.3168/jds.s0022-0302(81)82736-1
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2
Volume and Osmolality of Urine of Hypovitaminotic A Holstein Heifers
Autor: E.J. Keesting, C.G. Woelfel, J.E. Rousseau, J.J. Lucas, R.C. Hall, H.D. Eaton, S. W. Nielsen, M.C. Calhoun
Publikováno v: Journal of Dairy Science. 48:1346-1352
Five heifers, approximately 1 yr of age, were previously fed a vitamin A depletion ration containing 3.4% iodized salt and restricted water intake until cerebrospinal fluid pressure (CSFP) was elevated to an average of 348 mm of saline. During a 24-h
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f52129b37861c6e24262b1d404ba9911
https://doi.org/10.3168/jds.s0022-0302(65)88461-2
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4
Some Biochemical Constituents in Urine of Vitamin A-Deficient Holstein Calves
Autor: J.E. Rousseau, S. W. Nielsen, H.D. Eaton, M.C. Calhoun, C.G. Woelfel
Publikováno v: Journal of Dairy Science. 46:947-954
Summary To study possible effects of hypovitaminosis-A on urine composition, 30 male Holstein calves, average age 53 days and live weight 158lb, and partially depleted of their vitamin A reserves, were fed a vitamin A depletion ration supplemented wi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2ee781888725bd0d1f5b30890e5d6b2
https://doi.org/10.3168/jds.s0022-0302(63)89184-5
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5
Chronic Hypervitaminosis A in Holstein Male Calves
Autor: D.G. Hazzard, S. W. Nielsen, J.J. Lucas, J.E. Rousseau, M.C. Calhoun, C.G. Woelfel, R.M. Grey, H.D. Eaton
Publikováno v: Journal of Dairy Science. 47:391-401
Summary Beginning at two and one-half months of age, daily vitamin A intakes from 62.5 through 16,000 μ g per pound of live weight were fed to 28 calves for 12 wk. At intakes (estimated by regression) above 3,981 μ g the ration consumed decreased a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7da0fddee8bc47ae75e2e4c254aa307
https://doi.org/10.3168/jds.s0022-0302(64)88673-2
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6
Cisternal and Intraventricular Cerebrospinal Fluid Pressures in Chronic Bovine Hypervitaminosis A
Autor: R.M. Grey, J.E. Rousseau, S. W. Nielsen, R.C. Hall, C.G. Woelfel, M.C. Calhoun, J.J. Lucas, H.D. Eaton
Publikováno v: Journal of Dairy Science. 47:783-788
Eighteen Holstein male calves, average age 96 days and average plasma vitamin A 6.4μg per 100ml, were fed daily vitamin A intakes of either 18, 54, 4,000, or 12,000μg per 454g of live weight for 12 wk. Feed intake and growth were less in calves fed
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef9be5acbb8ed48687c52f8dc07bad05
https://doi.org/10.3168/jds.s0022-0302(64)88764-6
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7
The Pathology of Marginal Vitamin A Deficiency in Calves
Autor: C.G. Woelfel, H.D. Eaton, J. H. L. Mills, Nielsen Sw
Publikováno v: Research in Veterinary Science. 7:143-154
SUMMARY Forty-eight male Holstein calves averaging 79 days of age were fed 6 different levels (10, 20, 30, 40, 50 and 60 μg.) of carotene per pound of body weight daily at 2 caloric intakes for a 12 or a 24-week period. Papilloedema was present in 7
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c060b169d06bbd4f1ddac34a8a9fbb10
https://doi.org/10.1016/s0034-5288(18)34693-9
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10
Experimental pathology of dairy calves ingesting one-third the daily requirement of carotene
Autor: J. E. Rousseau, J. H. L. Mills, Nielsen Sw, H. D. Eaton, C.G. Woelfel
Publikováno v: Acta Vet Scand
At 53 days of age, 30 male Holstein-Friesian calves were divided into 2 equal groups and fed for a 17 week period a ration containing either 15 µg (deficient) or 150 µg (control) of carotene per 0.45 kg of live-weight per day. Twelve of the 15 defi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af41b86cbb79da2238858e96dd58d28d
https://pubmed.ncbi.nlm.nih.gov/6078838
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