منابع مشابه
Ruminant Nutrition: Dairy: Calves
J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 390 Effect of feeding polyphenols from pomegranate extract on health, growth, nutrient digestion, and immunocompetence of calves. M. C. Perdomo*1, R. A. Oliveira1, C. D. Narciso1, R. S. Bisinotto1, M. A. Ballou2, M. Dreher3, and J. E. P. Santos1, 1University of Florida, Gainesville, 2Texas Tech U...
متن کاملColostrum management for dairy calves.
Colostrum management is the single most important management factor in determining calf health and survival. Unfortunately, a significant proportion of North American dairy calves suffer from failure of passive transfer of antibodies from colostrum, contributing to excessively high preweaning mortality rates and other short- and long-term losses associated with animal health, welfare, and produ...
متن کاملUtilization of corn silage carotene by dairy calves.
p ERRY et al. (1957)and Neumann (1960) reported that steers fed an all-concentrate ration developed vitamin A deficiency even though carotene was present in the diet in excess of requirements (N.R.C., 1958). Jordan et al. (1963) found similar results when steers were fed principally on corn silage. Steers fed a "high" nitrate silage were depleted of their liver vitamin A reserves more rapidly t...
متن کاملFatty Acid Digestibility of Fat Sources Fed to Dairy Cows and Effects on Concentration of Fat in Milk
Milk fat yield affects the price received for milk by dairy farmers, and given the rising feed costs, maximizing diet digestibility is critical for the economical viability of dairy farms. Although feeding animal-vegetable fat or coconut oil to dairy cows can increase energy intake, they sometimes cause milk fat depression (MFD). Feeding monensin has been found to increase feed efficiency and m...
متن کاملFactors Affecting Diet Digestibility in Dairy Cattle
Feces typically comprises the greatest loss of ingested energy in ruminants, and the variation in converting digestible energy to metabolizable energy is usually small. Diet digestibility is determined by intrinsic properties of interand intramolecular structure of plant cell walls, which establish the upper potential for the rate and extent of cell wall digestion in ruminants (Mertens, 1993). ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1959
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(59)90813-6