Factors Affecting Calf Crop

Factors Affecting Calf Crop
Author: Michael J. Fields
Publisher: CRC Press
Total Pages: 385
Release: 2021-11-18
Genre: Nature
ISBN: 1000109844

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.

Managing Body Condition to Improve Reproductive Efficiency in Beef Cows

Managing Body Condition to Improve Reproductive Efficiency in Beef Cows
Author: L. H. Anderon
Publisher:
Total Pages: 6
Release: 2002
Genre: Beef cattle
ISBN:

"The economics of the beef cattle industry forces cow-calf operations to produce efficiently, and percent of calf crop weaned (really a measure of reproductive efficiency) has a big influence on how efficient production will be. One way to improve reproductive efficiency is to shorten the number of days from calving to rebreeding (postpartum interval, or PPI)"-- Page 1.

Bovine Reproduction

Bovine Reproduction
Author: Richard M. Hopper
Publisher: John Wiley & Sons
Total Pages: 2206
Release: 2014-08-18
Genre: Medical
ISBN: 1118470850

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.

Controlled Reproduction in Cattle and Buffaloes

Controlled Reproduction in Cattle and Buffaloes
Author: Ian Gordon
Publisher: Cabi
Total Pages: 522
Release: 1996
Genre: Medical
ISBN:

Introduction to controlled reproduction in cattle. The cow's oestrous cicle and associated events. Artificial control of oestrus and ovulation. Pregnancy testing in cattle. Control of calving. Controlling the calving interval. Embryo transfer and associated techniques in cattle. Introduction of twin births in cattle. Breeding cattle at younger ages. Introduction to controlled reproduction in buffaloes. Control of oestrous, Pregnancy testing and parturition control in buffaloes. Embryo transfer and associated techniques in buffaloes.

Nutrient Requirements of Beef Cattle

Nutrient Requirements of Beef Cattle
Author: Subcommittee on Beef Cattle Nutrition
Publisher: National Academies Press
Total Pages: 249
Release: 2000-05-16
Genre: Technology & Engineering
ISBN: 0309069343

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.

Nutrient Requirements of Beef Cattle

Nutrient Requirements of Beef Cattle
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
Total Pages: 22
Release: 2016-06-16
Genre: Technology & Engineering
ISBN: 0309317029

Since 1944, the National Research Council (NRC) has published seven editions of the Nutrient Requirements of Beef Cattle. This reference has guided nutritionists and other professionals in academia and the cattle and feed industries in developing and implementing nutritional and feeding programs for beef cattle. The cattle industry has undergone considerable changes since the seventh revised edition was published in 2000 and some of the requirements and recommendations set forth at that time are no longer relevant or appropriate. The eighth revised edition of the Nutrient Requirements of Beef Cattle builds on the previous editions. A great deal of new research has been published during the past 14 years and there is a large amount of new information for many nutrients. In addition to a thorough and current evaluation of the literature on the energy and nutrient requirements of beef in all stages of life, this volume includes new information about phosphorus and sulfur contents; a review of nutritional and feeding strategies to minimize nutrient losses in manure and reduce greenhouse gas production; a discussion of the effect of feeding on the nutritional quality and food safety of beef; new information about nutrient metabolism and utilization; new information on feed additives that alter rumen metabolism and postabsorptive metabolism; and future areas of needed research. The tables of feed ingredient composition are significantly updated. Nutrient Requirements of Beef Cattle represents a comprehensive review of the most recent information available on beef cattle nutrition and ingredient composition that will allow efficient, profitable, and environmentally conscious beef production.

Productive and reproductive Performance of indigenous Beef Cattle in Ethiopia

Productive and reproductive Performance of indigenous Beef Cattle in Ethiopia
Author: Tajudin Denur
Publisher: GRIN Verlag
Total Pages: 43
Release: 2021-02-01
Genre: Health & Fitness
ISBN: 3346338258

Studienarbeit aus dem Jahr 2020 im Fachbereich Gesundheit - Ernährungswissenschaft, , Sprache: Deutsch, Abstract: The aim of this review is to summarize the productive and reproductive performance of different indigenous cattle breeds under farmer’s management practices. Ethiopia is the home of large numbers of livestock due to having varied and extensive agro-ecological zones. From the total annual milk produced cattle milk, is the most prominent compared to other livestock species in Ethiopia. And also from the total annual meat produced cattle meat is the most prominent compared to other livestock species in Ethiopia. Numerous finding showed that calving interval, age at first calving, age at first service, number of service per conception and days open are one of the major measures of reproductive performance parameters for beef cattle production. Weight at different ages (including birth weight, weaning weight, 3 month weight, 6 month weight and yearling weight), meat yield, growth rate and carcass yield are one of the major measures of productive performance parameters for beef cattle production. Different report indicated that productive and reproductive performances of our indigenous cattle are very poor due to varied factors; the causes for low performances of beef cattle were genetic and environmental factors like feeding, housing and health care. In Ethiopia most of (98.20%) cattle breeds are local breeds the remaining (1.8%) are hybrid and exotic breeds. Then, the genetic performances of these breeds are poor, even though they have good adaptation in harsh environmental conditions. So, training and awareness creation should be given particularly to the farmers on major management practices like feeding, housing and health care and genetic improvement strategies should planned and practiced.