By Subcommittee on Dairy Cattle Nutrition, Committee on Animal Nutrition, National Research Council

This known reference has been up-to-date and made over to mirror the altering face of the dairy undefined. New positive factors let clients to pinpoint nutrient standards extra appropriately for person animals. The committee additionally presents suggestions on how nutrient research of feed components, insights into nutrient usage through the animal, and formula of diets to lessen environmental affects could be utilized to effective administration decisions.

The publication incorporates a uncomplicated desktop software on a compact disk, followed via broad context-sensitive "Help" innovations, to simulate the dynamic nation of animals.

The committee addresses vital concerns certain to dairy science-the dry or transition cow, udder edema, milk fever, low-fat milk, calf dehydration, and extra. The additionally quantity covers dry subject consumption, together with the best way to expect feed consumption. It addresses the administration of lactating dairy cows, usage of fats in calf and lactation diets, and calf and heifer alternative foodstuff. moreover, the various worthy tables contain up-to-date nutrient composition for widespread feedstuffs.

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Extra resources for Nutrient Requirements of Dairy Cattle

Example text

Dry matter intake equations from Quigley et al. (1986) and Stallings et al. (1985) and calf equation from the Nutrient Requirements of Beef Cattle (National Research Council, 1996) were selected for initial evaluation using data from New Hampshire and Minnesota where dietary composition, heifer growth, and DMI were measured over several months. The equation of Quigley et al. (1986) and the Nutrient Requirements of Beef Cattle equation (National Research Council, 1996) include dietary energy content and body weight.

And W. E. Urban, Jr. 1992. Water partitioning and intake predicition in dry and lactating Holstein cows. J. Dairy Sci. 75:1472– 1479. Holter, J. , J. W. West, M. L. McGillard, and A. N. Pell. 1996. Predicating ad libitum dry matter intake and yields of Jersey cows. J. Dairy Sci. 79:912– 921. Holter, J. , J. W. West, and M. L. McGillard. 1997. Predicting ad libitum dry matter intake and yield of Holstein cows. J. Dairy Sci. 80:2188– 2199. Illius, A. , and N. S. Jessop. 1996. Metabolic constraints on voluntary intake in ruminants.

1992. Effects of conservation method and access time on silage intake and milk production in dairy cows. Grass and Forage Sci. 47:161– 168. , and E. Burstedt. 1990. Effects of length of access time to feed and allotment of hay on grass silage intake and production in lactating dairy cows. Swed. J. Agric. Res. 20:169– 176. May, M. G. 1994. Factors affecting and the prediction of dry matter intake for Holstein dairy cows. D. thesis. University of Minnesota. Mertens, D. R. 1987. Predicting intake and digestibility using mathematical models of ruminal function.

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