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Effects of Castration on Carcass Composition, Meat Quality, and Sensory Properties of Beef Produced in a Tropical Climate

Effects of Castration on Carcass Composition, Meat Quality, and Sensory Properties of Beef Produced in a Tropical Climate PDF Author: Julio Rodriguez
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Forty-eight Brahman-cross male calves were fed to 26 mo of age and used to determine carcass cutability and meat quality characteristics of four muscles from intact bulls and steers castrated at 3, 7, or 12 mo of age grown under tropical pasture conditions. Longissimus lumborum (LL), Psoas major (PM), Gluteus medius (GM), and Semitendinosus (ST) steaks were aged for 2, 7, 14, or 28 d for Warner Bratzler shear force (WBSF) analysis. Live weight, carcass traits, and total subprimal yields were not affected by male sex condition. For PM, GM, and ST steaks, WBSF values were similar for steaks from intact bulls and steers castrated at all ages. For both PM and GM muscles, steaks aged for 28 d had the lowest (most tender) WBSF values and steaks aged for 2 d had the highest WBSF values. For the ST, WBSF values were highest for steaks aged 2 d. A treatment ©-- aging interaction was detected for LL WBSF values. At 14 d of aging, LL steaks from steers castrated at 3 mo tended to have lower WBSF values than those from intact bulls. At 28 d of aging, steaks from steers had lower WBSF values than steaks from intact bulls and steaks from steers castrated at 3 mo tended to have lower WBSF values than steaks from steers castrated at 12 mo. For LL steaks from steers castrated at 3, 7 or12 mo, WBSF values linearly decreased with increased days of aging. Although all sensory panel data collected were not statistically different, LL steaks from steers castrated at 3 mo tended to have higher (more tender) scores for overall tenderness than steaks from intact bull. This study indicates that castration at 3 mo would be the recommended production practice as it provided the greatest improvement of LL tenderness over intact bulls with no differences in carcass traits or subprimal yields. The degree of improvement in tenderness due to aging is muscle dependent.

Effects of Castration on Carcass Composition, Meat Quality, and Sensory Properties of Beef Produced in a Tropical Climate

Effects of Castration on Carcass Composition, Meat Quality, and Sensory Properties of Beef Produced in a Tropical Climate PDF Author: Julio Rodriguez
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Forty-eight Brahman-cross male calves were fed to 26 mo of age and used to determine carcass cutability and meat quality characteristics of four muscles from intact bulls and steers castrated at 3, 7, or 12 mo of age grown under tropical pasture conditions. Longissimus lumborum (LL), Psoas major (PM), Gluteus medius (GM), and Semitendinosus (ST) steaks were aged for 2, 7, 14, or 28 d for Warner Bratzler shear force (WBSF) analysis. Live weight, carcass traits, and total subprimal yields were not affected by male sex condition. For PM, GM, and ST steaks, WBSF values were similar for steaks from intact bulls and steers castrated at all ages. For both PM and GM muscles, steaks aged for 28 d had the lowest (most tender) WBSF values and steaks aged for 2 d had the highest WBSF values. For the ST, WBSF values were highest for steaks aged 2 d. A treatment ©-- aging interaction was detected for LL WBSF values. At 14 d of aging, LL steaks from steers castrated at 3 mo tended to have lower WBSF values than those from intact bulls. At 28 d of aging, steaks from steers had lower WBSF values than steaks from intact bulls and steaks from steers castrated at 3 mo tended to have lower WBSF values than steaks from steers castrated at 12 mo. For LL steaks from steers castrated at 3, 7 or12 mo, WBSF values linearly decreased with increased days of aging. Although all sensory panel data collected were not statistically different, LL steaks from steers castrated at 3 mo tended to have higher (more tender) scores for overall tenderness than steaks from intact bull. This study indicates that castration at 3 mo would be the recommended production practice as it provided the greatest improvement of LL tenderness over intact bulls with no differences in carcass traits or subprimal yields. The degree of improvement in tenderness due to aging is muscle dependent.

Animal Welfare and Meat Production

Animal Welfare and Meat Production PDF Author: Neville G. Gregory
Publisher: CABI
ISBN: 1845932161
Category : Business & Economics
Languages : en
Pages : 311

Book Description
Animal welfare issues are becoming increasingly prominent in animal prodution, for both economic and moral reasons. This book presents a clear understanding of the relationship between the welfare of major food animal species and their physiology, and the direct impact this has on meat quality. This new edition focuses on recent research and developments and also looks into welfare in aquaculture.

Beef Carcass Composition and Meat Quality

Beef Carcass Composition and Meat Quality PDF Author: J. R. Wythes
Publisher:
ISBN:
Category : Beef
Languages : en
Pages : 54

Book Description


Bibliography of Agriculture

Bibliography of Agriculture PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 858

Book Description


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INRA feeding system for ruminants PDF Author: INRA
Publisher: BRILL
ISBN: 908686872X
Category : Medical
Languages : en
Pages : 639

Book Description
The INRA Feeding System for Ruminants has been renewed to better address emerging challenges for animal nutrition: prevision of productive responses, product quality, animal health and emissions to the environment, in a larger extent of breeding contexts. The new system is mainly built from meta-analyses of large data bases, and modelling. The dietary supply model accounts for digestive interactions and flows of individual nutrients, so that feed values depend on the final ration. Animal requirements account for variability in metabolic efficiency. Various productive and non-productive animal responses to diets are quantified. This book presents the whole system for dairy and meat, large and small ruminant production, including specificities for tropical and Mediterranean areas. The first two sections present biological concepts and equations (with their field of application and statistical accuracy) used to predict intake (including at grazing) and nutrient supply (Section 1), animal’s requirements and multiple responses to diets (Section 2). They apply to net energy, metabolisable protein and amino acids, water, minerals and vitamins. Section 3 presents the use of concepts and equations in rationing with two purposes: (1) diet calculation for a given performance objective; and (2) prediction of the multiple responses of animal to diet changes. Section 4 displays the tables of feed values, and their prevision. All the equations and concepts are embedded in the fifth version of INRAtion® software for practical use.

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Cumulated Index Medicus PDF Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1916

Book Description


Goat Meat Production and Quality

Goat Meat Production and Quality PDF Author: Osman Mahgoub
Publisher: CABI
ISBN: 1845938496
Category : Technology & Engineering
Languages : en
Pages : 371

Book Description
Written by some of the world's leading goat meat scientists, and drawing from the most recent publications in the field, this book comprehensively covers the most important areas of goat meat production. Chapters discuss the role of genetics, breeding, reproduction, and nutrition in producing good quality, profitable goat meat. The mineral, amino acid and fatty acid composition of goat meat is also addressed, along with a discussion of its nutritive value, aimed at highlighting its health benefits over other red meats.

Quality of Fresh and Processed Foods

Quality of Fresh and Processed Foods PDF Author: Fereidoon Shahidi
Publisher: Springer Science & Business Media
ISBN: 9780306480713
Category : Technology & Engineering
Languages : en
Pages : 368

Book Description
Quality is a composite term encompassing many characteristics of foods. These include color, aroma, texture, general nutrition, shelf-life, stability, and possible presence of undesirable constituents. Obviously deterioration of quality may lead to changes in the attributes that characterize the food in its fresh or freshly processed state. In addition, quality enhancement of products may be carried out using appropriate processing techniques. Interaction of different components present with one another could have a profound effect on sensory quality of products. Meanwhile, presence of extraneous matter such as pesticides and debris may also contribute to a compromise in the quality of foods. In addition, processing often brings about changes in many attributes of food including its nutritional value. Thus, examination of process-induced changes in food products is important. In this book, a cursory account of quality attributes of fresh and processed foods is provided. The book is of interest to food scientists, nutritionists and biochemists in academia, government and industry.

More than Beef, Pork and Chicken – The Production, Processing, and Quality Traits of Other Sources of Meat for Human Diet

More than Beef, Pork and Chicken – The Production, Processing, and Quality Traits of Other Sources of Meat for Human Diet PDF Author: José Manuel Lorenzo
Publisher: Springer
ISBN: 3030054845
Category : Technology & Engineering
Languages : en
Pages : 421

Book Description
This comprehensive work explores the demand, supply and variable consumer attitude toward a wide variety of unconventional and exotic animal species that are consumed in different parts of the world. Individual chapters focus on the consumption of horse meat, camel, buffalo, sheep, rabbit, wild boar, deer, goose, pheasant and exotic meats such as alligator, snake, frog and turtle. For each type of animal species, the carcass characteristics, physico-chemical properties and nutritional value of the meat are extensively outlined. The consumer preference, behavior and perception of each type of meat are also covered, with focus on important factors from sensory properties to psychological and marketing aspects. In promoting a better understanding of the complexities involved in consumer decision making, this book aims to improve the competitiveness of the meat industry through effective informational strategies that can increase consumer acceptance of more convenient, healthy and environmentally friendly meat choices. More than Beef, Pork and Chicken – The Production, Processing, and Quality Traits of Other Sources of Meat for Human Diet also focuses on the important role meat plays in the human diet and the evolution of the species. Beneficial factors such as protein, B complex vitamins, zinc, selenium and phosphorus are detailed. Negative factors are discussed as well, with issues such as fat and fatty acid content being addressed for each type of meat presented. In exploring the full range of nutritional benefits, consumer acceptance and carcass characteristics in a large quantity of different types of animal meats from all over the world, this book offers incredible value to researchers looking for a single source on unconventional meat processing.

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Publisher: Pergamon
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 600

Book Description