Intake and Utilization of Energy of Rations with Pelleted Forages by Dairy Cows

Intake and Utilization of Energy of Rations with Pelleted Forages by Dairy Cows PDF

Author: Y. van der Honing

Publisher: Bernan Press(PA)

Published: 1975

Total Pages: 180

ISBN-13:

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A survey of the literature showed that forage processing, that is grinding and pelleting, increased feed intake of ruminants. This increase, due to reduction in particle size distribution of the forage, depends mainly on forage quality, proportion of concentrates in the diet and nutrient requirement of the cow. Pellets could replace part of the concentrates; complete substitution for long forage caused digestive disorders and reduced fat content of the milk. Eating rate, microbial breakdown and production of volatile fatty acids often increased too. Processed forages offered to sheep and beef cattle depressed digestibility, which was compensated by slightly lower losses of methane and less heat production.

Energy Allowances and Feeding Systems for Ruminants

Energy Allowances and Feeding Systems for Ruminants PDF

Author: Great Britain. Ministry of Agriculture, Fisheries and Food

Publisher:

Published: 1975

Total Pages: 94

ISBN-13:

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Principles; Food energy; Measurements of metabolisable energy; Metabolisable energy of the ration; Matabolisable energy concentration of rations; Metabolisable energy requirements; Maintenance; Liveweight gain; Milk production; Mobilisation of body reserves; Pregnancy; A net energy system for growing animals; Net energy requirements; Net energy values of foods; Animal production level; Safety margins; Dairy cows; Calculation of metabolisable energy allowances; Liveweight change; Daily ME allowances; Appetite Limits for dairy cows; Checking a ration; Ration formulation; Rapid method; Linear programming; Feeding the dairy cow; Significance of liveweight changes; Ration formulation for stages of lactation; Feeding according to yield; Energy requirements of grazing cows; Growing and fattening cattle; Prediction of performance; Ration calculations; Predicted liveweight gain; Calculation of metabolisable energy allowances; Ration formulation; Rapid method; Linear programming; Net energy system for ration formulation; Animal production level; Net energy values of foods; Net energy allowances; Ration formulation; Replacement values of foods; Linear programming; Sheep; Pregnant and lactating ewes; Maintenance allowances; Pregnancy allowances; Ration formulation; Growing and fattening sheep; Performance prediction; Prediction of liveweight gain; Calculation of metabolisable energy allowances; Net energy system for ration formulation; Net energy allowances; Animal prodution level; Net energy values of foods; Replacement values of foods; Metabolisable energies of foods; Energy values of foods; Digestibility measurements of foods; Metabolisable energy values of foods; Prediction of the ME of forages; Estimation of the ME of compound foods; Tables of food composition.

Feed Intake and Energy Utilization in Dairy Cows of Different Breeds

Feed Intake and Energy Utilization in Dairy Cows of Different Breeds PDF

Author: J. K. Oldenbroek

Publisher:

Published: 1988

Total Pages: 155

ISBN-13:

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Holstein friesians, dutch friesians and dutch red and whites on two complete diets with a different amount of roughage: performance in first lactation; Holstein friesians, dutch friesians and dutch red and whites on two complete diets with a different amount of roughage: differences in performance between first and second lactation; The performance of Jersey heifers and heifers of larger dairy breeds on two complete diets with different roughage contents; The performance of jersey cows and cows of larger dairy breeds on two complete diets with different roughage contents; Parity effects on feed intake and feed efficiency in four dairy breeds fed ad libitum two different diets; The effect of treatment of dairy cows of different breeds with recombinantly derived bovine somatotropin in a sustained delivery vehicle.

Energy Metabolism

Energy Metabolism PDF

Author: Laurence E. Mount

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 505

ISBN-13: 148316179X

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Studies in the Agricultural and Food Sciences: Energy Metabolism is a compilation of works on the energy metabolism in animals, especially animals of agricultural importance. The book is written by authoritative workers in the field and is divided into six parts; each chapter is based on a selected paper presented at the Eighth Symposium on Energy Metabolism held at Cambridge in September 1979. The text discusses feed evaluation; use of energy for maintenance and growth; and simulation models for energy exchange and growth. The book also covers the comparative aspects of energy metabolism; use of energy in production and lactation; and metabolic responses in the growing animal. The monograph is recommended for those who plan to study about energy metabolism of farm animals and its relationship with certain biological processes. The book will also appeal to those who develop feeds and methods that can help improve energy metabolism of farm animals.

Feedstuff Evaluation

Feedstuff Evaluation PDF

Author: Julian Wiseman

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 469

ISBN-13: 1483162249

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Feedstuff Evaluation contains the proceedings of the 50th University of Nottingham Easter School in Agricultural Sciences, held at Sutton Bonington in July 1989. The book presents papers discussing a wide range of topics on the accurate evaluation of feedstuffs for livestock. Initially, systems of expressing the nutritive value of feeds are considered. Modifications to feeding value as influenced by animal factors including intake and palatability are discussed. Specific dietary ingredients, being plant polysaccharides, fats, minerals and vitamins are detailed. Prediction of the nutritive value of compound feeds and individual feeds through classical wet chemistry and the more recent NIR is assuming considerable importance in the rapid evaluation of diets. Associated with these developments is an appreciation of the relevance of both inter- and intra-laboratory variation in determinations. Finally, the need to collate information into an interactive data-base is being actively pursued. It is evident that safety of animal feeds is becoming an increasingly topical issue and the last session considered the relevance of naturally-occurring toxic factors, residues, mycotoxins and, finally, animal pathogens. Veterinarians, farmers, farm administrators, and those involved in every aspect of nutrient supply to animals will find the compendium very insightful and informative.

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