Download e-book for kindle: Beef cattle feeding and nutrition by Tilden Wayne Perry

By Tilden Wayne Perry

ISBN-10: 0125520522

ISBN-13: 9780125520522

This new version of T.W. Perry's vintage reference presents either up-to-date, and new details at the feeding and dietary specifications of pork farm animals, from breeding [or transforming into] to completing. the entire severe elements of nutrition are handled: supplements, minerals, protein, silage, and so forth. the various dietary wishes of breeding farm animals also are special. completely up-to-date to aid ranchers and feedlot managers maximize yield and potency, this moment variation will be at the cabinets of all these concerned with pork livestock herd administration and construction.

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Example text

It is perhaps unfortunate that vitamin E has been related so closely to reproduction, since apparently that aspect of vitamin E is critical only to the rat. Proof has not been presented to indicate that a vitamin E deficiency affects reproduction per se in any species with the exception of the rat. Yet many "shy breeding" and sterile bulls, rams, and stallions have been administered copious amounts of vitamin E in the hopes that somehow this would cause them to become fertile or sexually aggressive.

Decreasing acetic acid production can result in lower butterfat production. As an example, feeding higher levels of concentrate or finely grinding forage in diets fed to dairy cows can reduce acetic acid production and result in milk fat depression. Most of the propionic acid that is absorbed from the gut is converted to glucose by the liver. A small amount may be metabolized to lactic acid by ruminal epithelium. Propionic acid is a precursor for about 80% of the glucose synthesized by the liver with amino acids and lactate being minor substrates for glucose synthesis.

For example, a 650-1b finishing yearling steer has the following nutrient requirements. 1 The use of protein supplements containing urea has held the cost of fortifying cattle rations with supplemental protein to a minimum. As a result, the large cost in cattle feeding is for the energy portion of the ration. Based on current feed prices, the following tabulation presents the cost of supplying energy, protein, minerals, and vitamin A to a 650-1b finishing yearling steer. 1. Rumen Physiology and Energy Requirements Ingredient Cost/unit Cost ($) Percentage of total cost Corn (No.

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Beef cattle feeding and nutrition by Tilden Wayne Perry

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