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Interrelationships Of Milk Yield Milk Composition And Calf Growth
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Book Synopsis Interrelationships of Milk Yield, Milk Composition, and Calf Growth by : Vernon Martin Gleddie
Download or read book Interrelationships of Milk Yield, Milk Composition, and Calf Growth written by Vernon Martin Gleddie and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forty-two beef cows composed of six breed-age groups were milked four times during their lactation to establish production levels, constituent percentages, and lactation trends. Fourteen additional cows of the same breed-age groups, and calving a month earlier, were milked to estimate the persistency of lactation trends. Milking was done by machine with the use of oxytocin. A 12-hour milk yield of one-half of the udder was multiplied by four for a 24-hour yield estimate. Milk was analyzed for butterfat, protein, solids-not-fat, and total solids. Calf milk consumption was measured in the first month. Breed-age group averages for 24-hour milk yield ranged from 8.2 to 18.5 pounds with a herd average of 14.2 pounds. The beef cows showed a decline in milk yield from the first to the fifth month, which is different from dairy cattle lactation trends where a rise normally occurs from the first to the second month. The difference was probably due to the effect of calf suckling. In the first month of lactation, milk production was generally in excess of the calf's capacity to consume, and there was a physiological restriction to increased production. However, in those breed-age groups where the calves were found to consume all the milk available in the first month, milk production did increase to the second month. Lactation averages for butterfat, protein, solids-not-fat, and total solids were 3.9, 3.5, 9,1, and 13.0 per cent, respectively. Butterfat increased from the beginning; very sharply toward the end. Other constituents decreased to the second month and then increased. Data from the 14 cows indicated a continuation in the rise of butterfat and total solids and a levelling-off in the rise of protein and solids-not-fat percentages. An analysis of variance showed that breed of dam contributed significantly (P
Book Synopsis The Effects of Beef Cow Milk Yield and Composition on Calf Growth and Cow Reproduction by : Michael Bardin Larremore
Download or read book The Effects of Beef Cow Milk Yield and Composition on Calf Growth and Cow Reproduction written by Michael Bardin Larremore and published by . This book was released on 1998 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Interrelationships of Milk Composition and Yield by : Charles J. Wilcox
Download or read book Genetic Interrelationships of Milk Composition and Yield written by Charles J. Wilcox and published by . This book was released on 1943 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Dam's Milk Yield and Milk Composition on the Growth of Angus Calves by : John Chrysostom Serwanja
Download or read book The Effect of Dam's Milk Yield and Milk Composition on the Growth of Angus Calves written by John Chrysostom Serwanja and published by . This book was released on 1969 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Quantitative Interrelationships Between the Main Milk Constituents by : Abdel Moneim Mohammed el Negoumy
Download or read book The Quantitative Interrelationships Between the Main Milk Constituents written by Abdel Moneim Mohammed el Negoumy and published by . This book was released on 1951 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationships Among Estimated Breeding Values for Preweaning Calf Growth, Dam Milk Production, Cow-calf Behavior, and Calf Performance by : Jane Tosh
Download or read book Relationships Among Estimated Breeding Values for Preweaning Calf Growth, Dam Milk Production, Cow-calf Behavior, and Calf Performance written by Jane Tosh and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Early Life Nutrition of Dairy Calves and Its Implications on Future Milk Production by : Fernando Soberon
Download or read book Early Life Nutrition of Dairy Calves and Its Implications on Future Milk Production written by Fernando Soberon and published by . This book was released on 2012 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pre-weaning management of dairy calves over the last 30 years has focused on mortality, early weaning and rumen development. Recent data has demonstrated the potential to influence metabolic programming and consequently alter future performance of dairy cattle through nutrition and management during the first few months of life. Two main management practices have been identified as having the greatest impact in future performance: colostrum management and energy intake pre-weaning. Therefore, the first objective was to investigate the relationship between nutrient intake from milk replacer and pre and post-weaning growth rate with lactation performance. The evaluation of over 1,800 first lactations resulted in a strong relationship between average daily gain (ADG) pre-weaning and milk production so that for every additional kg of ADG pre-weaning first lactation milk production is increased by 850 kg. The relationship is equally strong when assessed by energy intake above maintenance from milk replacer during the pre-weaning period. The second objective of this work was to evaluate the effects of preweaning nutrition on mammary gland development. The mammary gland, especially the parenchymal mass were shown to be responsive to nutrient intake such that the parenchymal mass of calves that consumed more nutrients grew 5.6 times faster than that of control calves. This was significant because it demonstrated that allometric growth can be initiated from birth and that the mammary gland is very nutrient responsive, something not readily recognized in dairy cattle. The interaction of colostrum status and pre-weaning nutrient intake was also evaluated and the data suggests that the effects of colostrum management can be amplified or muted depending on nutritional status pre-weaning. Colostrum contains an array of different growth factors that can account for some of the long-term impacts on growth and efficiency; a preliminary study evaluating hormone levels post-colostrum feeding in newborn calves suggest that hormones present in colostrum may be directly absorbed by the calf and could impact metabolic programming through the "Lactocrine hypothesis". Protein synthesis and accretion is proposed as the primary signal that enhances future performance of pre-weaned cattle; however, milk protein sources are expensive and feeding high levels of such proteins may not always be cost effective. Therefore, alternative protein sources were evaluated as a way to reduce the cost of milk replacers. In this study, milk replacers containing whey based protein were the most effective milk replacers, with or without a modified amino acid profile.
Book Synopsis Designing Foods by : National Research Council
Download or read book Designing Foods written by National Research Council and published by National Academies Press. This book was released on 1988-02-01 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This lively book examines recent trends in animal product consumption and diet; reviews industry efforts, policies, and programs aimed at improving the nutritional attributes of animal products; and offers suggestions for further research. In addition, the volume reviews dietary and health recommendations from major health organizations and notes specific target levels for nutrients.
Book Synopsis Relationship of Milk Expected Progeny Differences to Actual Milk Production and Calf Weaning Weight by : Craig H. Mallinckrodt
Download or read book Relationship of Milk Expected Progeny Differences to Actual Milk Production and Calf Weaning Weight written by Craig H. Mallinckrodt and published by . This book was released on 1990 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1989 with total page 1422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development, Nutrition, and Management of the Young Calf by : Carl L. Davis
Download or read book The Development, Nutrition, and Management of the Young Calf written by Carl L. Davis and published by Iowa State Press. This book was released on 1998-01-01 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indispensable resource for the dairy farmer or veterinarian, the researcher, teacher, or advanced student, this book puts the cutting–edge science of raising dairy calves into an accessible, usable form. Geared to those with a basic understanding of principles of animal nutrition and husbandry, the volume gives a comprehensive account of all aspects of calf rearing, from the rudiments of anatomy and development through the practicalities of feeding and housing. The Development, Nutrition and Management of the Young Calf begins with an overview of how the calf′s digestive system develops, highlighting the period of transition from preruminant to ruminant digestion. Here the authors provide information essential to understanding nutritional needs and restrictions during the liquid–feeding phase in the young calf as well as those factors that govern the development of a functional rumen. Major emphasis is given to the energy and protein requirements of the young calf, with attention to the effects of environmental temperature on energy requirements. The authors also review the adequacy of current National Research Council recommendations on the energy and protein requirements of young calves. They discuss the management, nutrition, and care of the pregnant cow as well as calving management necessary to deliver a healthy calf. Other topics include liquid–feeding systems, formulation and use of milk replacers and starter feeds, the weaning process, housing principles, and the interactions of nutrition and disease
Book Synopsis The Testing of Cows by : Joseph Lawrence Hills
Download or read book The Testing of Cows written by Joseph Lawrence Hills and published by . This book was released on 1907 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient Requirements of Beef Cattle by : Subcommittee on Beef Cattle Nutrition
Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.
Book Synopsis Calf and Heifer Rearing by : Philip C. Garnsworthy
Download or read book Calf and Heifer Rearing written by Philip C. Garnsworthy and published by Nottingham Trent University. This book was released on 2005-01-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume considers every aspect of calf rearing, from physiological principles to practical systems. Topics include physiology of growth and digestion, nutrient requirements, health and welfare, and lifetime performance. More than half the authors are from outside the UK and all are acknowledged as international experts in their field. This book is aimed at technical advisers, researchers, extension workers, veterinary practitioners, progressive farmers, academics and students.
Book Synopsis Fat Content and Composition of Animal Products by : National Research Council
Download or read book Fat Content and Composition of Animal Products written by National Research Council and published by National Academies Press. This book was released on 1976-02-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bovine Reproduction by : Richard M. Hopper
Download or read book Bovine Reproduction written by Richard M. Hopper and published by John Wiley & Sons. This book was released on 2014-08-18 with total page 2206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Reproduction is a comprehensive, current reference providing information on all aspects of reproduction in the bull and cow. Offering fundamental knowledge on evaluating and restoring fertility in the bovine patient, the book also places information in the context of herd health where appropriate for a truly global view of bovine theriogenology. Printed in full color throughout, the book includes 83 chapters and more than 550 images, making it the most exhaustive reference available on this topic. Each section covers anatomy and physiology, breeding management, and reproductive surgery, as well as obstetrics and pregnancy wastage in the cow. Bovine Reproduction is a welcome resource for bovine practitioners, theriogenologists, and animal scientists, as well as veterinary students and residents with an interest in the cow.
Book Synopsis Recent Advances in Animal Nutrition by : W. Haresign
Download or read book Recent Advances in Animal Nutrition written by W. Haresign and published by Elsevier. This book was released on 2013-10-22 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Advances in Animal Nutrition-1981 is a collection of papers that discusses the effects of dietary fat on milk composition, relating it to the biochemistry of fat synthesis in the mammary gland. The influence of concentrates on milk composition as well as the pattern and level of concentrate feeding on milk output are also covered. The book describes the need for better utilization of grass and grass products in dairy production, the mineral and trace element requirements of pigs; the importance of anion-cation balance in poultry diets and its effects on performance levels; and the selenium and cobalt requirements of ruminants. The problems of medicinal residues in animal products and the toxicological effects of aflatoxin residues in animal products are also considered. People involved in agriculture, dairy production and animal nutrition will find the book useful.
