Protein feeding and balancing for amino acids in lactating dairy cattle [0.03%]
泌乳奶牛的蛋白质饲养与氨基酸平衡研究进展
Robert A Patton,Alexander N Hristov,Hélène Lapierre
Robert A Patton
This article summarizes the current literature as regards metabolizable protein (MP) and essential amino acid (EAA) nutrition of dairy cattle. Emphasis has been placed on research since the publication of the National Research Council Nutri...
Dairy nutrition [0.03%]
膳食营养顾问
Robert J Van Saun
Robert J Van Saun
Garrett R Oetzel
Garrett R Oetzel
Veterinarians serving dairy clients can provide systematic investigations of nutritional problems. The foundation of a nutritional investigation is a careful evaluation of the diet being consumed by the cows. This information is supplemente...
William J Seglar,Randy D Shaver
William J Seglar
Various forage and grain crops are grown, harvested, and fed to dairy cattle as ensiled forages or high-moisture grains. Although the nutritional value of hybrids and varieties is influenced by genetic inheritability, the crop growing envir...
Calcium and magnesium physiology and nutrition in relation to the prevention of milk fever and tetany (dietary management of macrominerals in preventing disease) [0.03%]
钙和镁的生理学与营养对预防产后瘫痪和乳热症的关系(宏量矿物质饮食管理在疾病预防中的作用)
Javier Martín-Tereso,Holger Martens
Javier Martín-Tereso
Dairy cows may suffer events of hypocalcemia and hypomagnesemia, commonly known as milk fever and tetany. Milk fever is characterized by hypocalcemia at parturition as a consequence of a sudden increase in Ca demand and an unavoidable delay...
Thomas C Jenkins,Kevin J Harvatine
Thomas C Jenkins
Diets fed to cattle contain mostly unsaturated fatty acids supplied in grains and forages, by-products, and fat supplements. Lipid intake by dairy cattle must be restricted to prevent alterations of microbial populations in the rumen that c...
Robert J Van Saun,Charles J Sniffen
Robert J Van Saun
In this article, an overview is presented of nutrient modeling to define energy and protein requirements of the late pregnant cow, and metabolic relationships between fetus and cow as they relate to nutrient utilization and risk for postpar...
William S Swecker Jr
William S Swecker Jr
This article gives practitioners an overview of trace mineral requirements, supplementation, and assessment in dairy herds. In addition, a step-by-step guideline for liver biopsy in cows is provided with interpretive results from a sample h...
Allen J Roussel,Geof W Smith
Allen J Roussel
Christie Balcomb,Derek Foster
Christie Balcomb
The use of whole blood and/or blood products is indicated in ruminant medicine. The goal of this article is to summarize previous literature on blood groups in ruminants and camelids, list indications for transfusion, and describe collectio...