Designing Foods
Designing Foods

Author: National Research Council

Publisher: National Academies Press

Published: 1988-02-01

Total Pages: 384

ISBN-13: 0309037956

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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.

Prediction of Retail Product and Trimmable Fat in Beef Cattle Using Ultrasound Or Carcass Data
Prediction of Retail Product and Trimmable Fat in Beef Cattle Using Ultrasound Or Carcass Data

Author: Richard Gregory Tait

Publisher:

Published: 2002

Total Pages: 208

ISBN-13:

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The most widely used system to predict percent retail product from the four primals in beef cattle is USDA yield grade. The purpose of this study was to determine if routine ultrasound measurements and additional rump measurements could be used to more accurately predict the percent lean from the four primals than the carcass measurements going into the USDA yield grade equation. This study utilized market cattle (n = 471) consisting of Angus bulls, Angus steers, and crossbred steers. The right side of each carcass was fabricated into retail cuts, lean trim, fat, and bone; weights of each component were recorded. Percent retail product from the four primals was then expressed as a percentage of side weight. Traditional carcass measures collected were: 1) hot carcass weight (HCW), 2) 12-13th rib fat thickness (CFAT), 3) 12-13th rib ribeye area (CREA), and 4) percent kidney, pelvic, and heart fat (CKPH). Live animal ultrasound measures collected within seven days prior to harvest were: 1) scan weight (SCANWT), 2) 12-13th rib fat thickness (UFAT), 3) 12-13th rib ribeye area (UREA), 4) subcutaneous fat thickness over the termination of the biceps femoris in the rump(reference point) (URFAT), 5) depth of gluteus medius under the reference point (URDEPTH), and 6) area of gluteus medius anterior to the reference point (URAREA). A stepwise regression was performed to develop models to predict percent retail product from the four primals based on carcass measures or ultrasound measures, and comparisons were made between the models, Significant measures (P

The Science of Animal Growth and Meat Technology
The Science of Animal Growth and Meat Technology

Author: Steven M. Lonergan

Publisher: Academic Press

Published: 2018-10-27

Total Pages: 302

ISBN-13: 0128152788

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The Science of Animal Growth and Meat Technology, Second Edition, combines fundamental science- based and applied, practical concepts relating to the prenatal and postnatal growth of cattle, sheep and pigs. It provides the necessary components to understand the production and growth of livestock for safe and quality meat products and presents an understanding of the principles of meat science and technology that is needed to understand the meat industry. Information on the slaughter process of animals, muscle structure and meat tenderness, meat quality, meat safety, and microbiology makes this a valuable self-study reference for students and professionals entering the field. - Describes principles in muscle metabolism, meat quality and meat safety using case studies - Discusses the microbial safety of meat products, primary pathogens of concern, and pathogen detection - Offers solutions on how to control bacterial growth to improve the safety and quality of meat - Presents a new chapter on packaging for meat and meat products that focuses on flexible film technology, packaging materials and equipment technology - Includes new information on inspection systems prior to slaughter, during slaughter, and the inspection of meat processing systems

Factors Affecting Calf Crop
Factors Affecting Calf Crop

Author: Michael J. Fields

Publisher: CRC Press

Published: 2021-11-18

Total Pages: 414

ISBN-13: 100015288X

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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.