Estimation Of Phenotypic And Genetic Parameters Associated With Milk Production In Beef Cows
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Estimation of Genetic Parameters and Sire Rankings for Holstein Linear Type Scores and Milk Production by Multiple Trait Analysis
Author | : Bobby Dennis Banks |
Publisher | : |
Total Pages | : 398 |
Release | : 1986 |
Genre | : Dairy cattle |
ISBN | : |
Estimation of Genetic and Phenotypic Parameters of Milk, Fat and Protein Yields of Holstein Cattle Under Selection
Author | : Thomas Joseph Lawlor |
Publisher | : |
Total Pages | : 168 |
Release | : 1984 |
Genre | : Cow testing |
ISBN | : |
Breeding for robustness in cattle
Author | : Marija Klopcic |
Publisher | : BRILL |
Total Pages | : 281 |
Release | : 2023-09-04 |
Genre | : Technology & Engineering |
ISBN | : 9086866573 |
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.
Estimation of Genetic Parameters for Reproductive Traits in Finnish Ayrshire Cattle
Author | : Esa Antero Mantysaari |
Publisher | : |
Total Pages | : 274 |
Release | : 1988 |
Genre | : Ayrshire cattle |
ISBN | : |
Genetic and Genetic-feeding Regimen Interaction Effects on Lactation, Growth and Carcass Traits in Dairy Cattle
Author | : Suwat Rattanaronchart |
Publisher | : |
Total Pages | : 260 |
Release | : 1982 |
Genre | : Cattle |
ISBN | : |
Estimation of Population Parameters for First and Second Lactation Milk Production of Holstein Dairy Cattle Free of Selection Bias
Author | : Max Frederick Rothschild |
Publisher | : |
Total Pages | : 174 |
Release | : 1978 |
Genre | : Dairy cattle |
ISBN | : |