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Distillers grains are a byproduct of whiskey and fuel ethanol production The crude protein fraction of distillers grain (being a byproduct of corn) is relatively undegradable in the rumen of cows. This is especially true of dried distillers grains with solubles as the product has . . . → Read More: Cow Performance When Fed Distillers Grain INTRODUCTION Current feeding practices on Pennsylvania dairy farms consist of providing a substantial portion of dietary dry matter as corn grain. Given the growing demand for renewable fuel production and the current reliance on corn for meeting this demand, the cost of corn for Pennsylvania dairy farm feed may become prohibitive. The recent expansion . . . → Read More: Opportunities and Challenges of Feeding Distillers Grains to Dairy Cows WHAT IS MILK? Milk is the normal product of mammary gland secretion. The average composition of milk from cows and buffalo is presented in Table 1. Milk is a complex, nutritiousproduct that contains more than 100 substances that are either in solution, suspension or emulsion in water. For example: Casein, the major protein of . . . → Read More: Dairy Cattle Milk Composition and Nutrition Value INTESTINAL ABSORPTION OF LIPIDS IN DAIRY CATTLE Microbial phospholipids are digested in the small intestine and contribute to the pool of fatty acids that are processed and absorbed through the intestinal wall. The bile secreted by the liver and the pancreatic juice (rich in enzymes and bicarbonate) are mixed with the contents of the . . . → Read More: Intestinal Absorbtion of Lipids in Dairy Cattle TYPES OF LIPIDS Usually, the diet eaten by cows contains only 2 to 4% lipids. However, lipids are an important part of the ration of dairy cows because they contribute directly to about 50% of the fat in milk and they are the most concentrated source of energy in feed. Only small amounts of . . . → Read More: Lipid Metabolism in Dairy Cows INTRODUCTION Dairy cows and other animals such as sheep, goats, buffaloes, camels and giraffes are herbivores because their diets are composed primarily of plant material. Many herbivores also are ruminants. Ruminant animals can be recognized easily because they chew frequently even when they are not eating. This chewing activity called rumination, is part of . . . → Read More: Digestion in the Dairy Cow |
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