Genetic Evaluation of Calf Surviv Ability in Crossbred Cattle PDF Download
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Author: Kanai Pathak
Publisher:
ISBN:
Category :
Languages : en
Pages : 53
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Author: Kanai Pathak
Publisher:
ISBN:
Category :
Languages : en
Pages : 53
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Author: C. A. R. Raja
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Marija Klopcic
Publisher: BRILL
ISBN: 9086866573
Category : Technology & Engineering
Languages : en
Pages : 281
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Book Description
The past decade has revealed unfavourable trends in e.g. fertility, udder health and locomotion in some major dairy cattle breeds due to a large increase in production and insufficient consideration of functional traits in the breeding goals. Such unfavourable trends in some functional traits increase costs. Additionally, the enlargement of herds leads to less available labour time per individual cow. This asks for cows that are easy to handle. At the same time, society is demanding a higher welfare standard of animals. These contradicting developments have increased the desire for so called more robust animals. Robustness can be defined as 'the ability to maintain homeostasis in commonly accepted and sustainable herds of the near future'; or 'the ability of the cow to function well in the environment she lives in as well as in a wide range of climates and production systems'. This book contains a series of articles (26) dealing with the concept of robustness, including aspects like evolution, genetics, environment, animal health and welfare, and integrity. Besides the major functional traits also the links to energy balance, hot climatic conditions, and the attitude and input of stakeholders towards robustness as part of the breeding program are discussed. This book is the first attempt to summarise the available knowledge concerning this topic in cattle, making this book unique. The contributions are from authors of 16 countries from all over the world. However, the focus is presently on farm animal level, while in future robustness of the whole production system may also require additional attention.
Author: Selvan A. Sakthivel
Publisher:
ISBN:
Category :
Languages : en
Pages : 81
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Author: Christian Maltecca
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
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Author: Manohar Lal Sangwan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Xiao-Lin Wu
Publisher: Frontiers Media SA
ISBN: 2889713571
Category : Science
Languages : en
Pages : 327
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Author: K. Mukherjee
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Michael J. Fields
Publisher: CRC Press
ISBN: 1000109844
Category : Nature
Languages : en
Pages : 385
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Book Description
Factors Affecting Calf Crop summarizes the latest information available from leading cattle physiologists and geneticists regarding factors known to influence the production of live calves at weaning. You get practical information on management techniques for improving reproduction efficiency in the herd. You'll also learn about the functioning of the reproductive system and how this may affect reproductive processes in the cow herd. Managers will benefit from a clearer understanding of the factors known to limit efficient reproduction, while veterinarians and other professionals who advise cattlemen will appreciate the substantial reference material and color photographs for defining cow condition scores. Color photographs are also used to illustrate the discussions of testicular thermographies and their applications. Other chapters in the book cover developments in improving reproductive performance of the replacement heifer, the brood cow, and the bull. Topics on reproduction include physiology/endocrinology, the use of growth promotants, genetics and physiological and economic considerations in selecting the age to breed heifers, heritability of fertility, length of the breeding season, prepartum and postpartum nutrition, nursing by the calf, cloning of embryos, and much more.
Author: L. W. N. Samaranayake
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
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Book Description
