Protein and Energy Levels in Swine Rations PDF Download
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Author: Alfred James Clark
Publisher:
ISBN:
Category : Proteins
Languages : en
Pages : 338
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Book Description
Author: Alfred James Clark
Publisher:
ISBN:
Category : Proteins
Languages : en
Pages : 338
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Book Description
Author: Robert S. Lowrey
Publisher:
ISBN:
Category : Proteins
Languages : en
Pages : 148
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Book Description
Author: Malcolm Cecil Thomas
Publisher:
ISBN:
Category : Proteins
Languages : en
Pages : 128
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Book Description
Author: Henry J. A. Likuski
Publisher:
ISBN:
Category : Nitrogen in animal nutrition
Languages : en
Pages : 0
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Book Description
These experiments were designed to study the effect that feeding rations varying in energy and protein level had on energy and nitrogen digestibility and nitrogen retention by weanling rats and growing swine. A 2 x 2 factorial design using rations containing gross energy levels of 3.2 and 3.9 Cal./gm. and crude protein levels of 14 and 187. was used for the major studies. Rate of gain and efficiency of feed utilization by swine fed these rations from weaning to market weight, and carcass characteristics of the market swine were also studied. Twenty percent Terralite, a fine aggregate of vermiculite, was used to lower the digestible energy content of the rations. In the rat trial Terralite compared favourably with Alphacel, a non-nutritive cellulose, previously used as a diluent in studies of this nature with rats. The apparent digestibility of energy and nitrogen by rats and swine were similar. Although swine digestibility figures varied with the age of the pig, the average was near that obtained for weanling rats. Nitrogen digestibility decreased for both species when a diluent was used to lower the energy content of the ration. As the diets had energy-protein ratios below that required for maximum nitrogen utilization by rats, nitrogen retention as a percentage of gross or digestible nitrogen was low for all diets used in the rat trial. On the basis of nitrogen retention weanling pigs, however, required a higher level of protein in their ration than was required by weanling rats. In the trial with 15 lb. pigs the percent nitrogen retention was increased by raising the protein level of the ration. At later stages of growth nitrogen retention appeared to decrease when high levels of protein were fed. Rate of gain and feed efficiency in pigs from weaning to market weight were improved by feeding high levels of protein during early stages of growth, and by increasing the energy level of the ration at later stages. Feeding high levels of protein during the finishing period decreased rate of gain and efficiency of feed utilization. Carcass quality was not seriously affected by feeding high energy rations when they contained corresponding high levels of protein. However, pigs fed low energy rations did have the superior carcasses. During the later stages of growth male pigs made faster weight gains than females. Female pigs, however, excelled males in all carcass characteristics measured.
Author:
Publisher: National Academies Press
ISBN: 9780309059930
Category : Nature
Languages : en
Pages : 218
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Book Description
Each of these popular handbooks contains comprehensive information on the nutritional needs of domestic animals and includes extensive tabular data. All are paperback and 8 1/2 x 11. Some books come with diskettes or Cds that allow users to predict nutrient requirements of specific animals under various conditions and at various life stages.
Author: Elwyn R. Miller
Publisher: Butterworth-Heinemann
ISBN: 1483162117
Category : Technology & Engineering
Languages : en
Pages : 692
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Book Description
Swine Nutrition is a comprehensive text-reference that deals with the various aspects and knowledge in swine nutrition. The book is basically about nutrient utilization by swine. The topics discussed concerning this subject are factors influencing swine nutrition, nutrient bioavailability, appetite and feeding behavior, physical forms of feed, environment and management, immunocompetence, genetic and sex considerations, mycotoxins, and intestinal microbiology. Major and unique feedstuffs, feeding regimen in different stages of growth, and techniques in swine nutrition research are also elaborated. The text will be useful to students of advance swine nutrition courses as well as those seeking information in swine nutrition.
Author: D J A Cole
Publisher: Elsevier
ISBN: 1483140911
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
Recent Developments in Pig Nutrition shows the updates in the nutrition and the evaluation of energy needs in raising and breeding pigs. The book covers the energy requirement of pigs; the effects of climatic variables on the nutrition and energy of pigs; and the prediction of energy content in pig feeds. The availability and importance of proteins and amino acids in pig feeds are also discussed. The text also explains the importance of vitamins and minerals in the diet of pigs; the nutritional needs of the different sexes of pigs and piglets; and the processing and evaluation of cereals for pig diets. The monograph is recommended for those in piggery business, who want to know more about the importance of pig nutrition and be updated with the different findings in the field. The book will also be good for animal nutritionists who concern themselves with pig feeds and for veterinarians who specialize in pigs.
Author: Tony Cunha
Publisher: Elsevier
ISBN: 032315381X
Category : Science
Languages : en
Pages : 369
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Book Description
Swine Feeding and Nutrition provides detailed information on aspects of swine production. It begins with a presentation of the past, present, and future of swine industry. Then, it reviews the many factors that can affect nutrient requirements and needs. This text summarizes minerals, vitamins, proteins, amino acids, carbohydrates, fiber, fatty acids, fat, energy, water, enzymes, and antibiotics and other antimicrobial compounds in swine industry. Furthermore, it discusses the relative value of feeds for use in swine diets and the feeding requirement for baby pig, growing-finishing pigs, and the breeding herd. This book will be very valuable to beginners in swine production, established swine raisers, feed manufacturers and dealers, county agents, farm advisors and consultants, and veterinarians. Animal science and agriculture students and instructors will also find this book helpful.
Author: Subcommittee on Swine Nutrition
Publisher: National Academies Press
ISBN: 0309132649
Category : Technology & Engineering
Languages : en
Pages : 218
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Book Description
The tenth edition of this essential reference presents new knowledge about the nutritional needs of swine that consider such factors as growth rate, carcass leanness, gender, health, environment, and repartitioning agents. New sections are presented on requirements for amino acids and other nutrients. In addition, an original modeling approach to arriving at energy and amino acid needs for given animals is incorporated in this revision. The book comes with a CD-ROM that allows users to create tables of nutrient requirements for swine of a specific body weight and level of productivity. Nutrient Requirements of Swine covers: Biological concepts that underlie nutrient needs for growth and function. New data on amino acid and energy requirements and the factors that shape them. New findings on lysine and the bioavailability of amino acids. New research results on minerals and vitamins. Nutrient composition of an expanded list of feedstuffs. The role of water in swine physiology, including factors that affect the quality of drinking water. Expanded tables of feed ingredients and their nutrient composition provide bioavailability estimates, fatty acid composition of fats typically used in swine diets, and important information on estimating the amino acid content of crude protein.
Author: National Research Council (U.S.). Subcommittee on Swine Nutrition
Publisher: National Academy Press
ISBN:
Category : Pets
Languages : en
Pages : 68
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Book Description
Nutrient requirements: energy, protein and aminoacids, minerals, vitamins, water. Antimicrobial feed additives. Nutrient deficiencies and excesses. Formulating diets. Tables nutrient requirementes. Composition of feeds and mineral sources.
