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The Effect Of Dams Milk Yield And Milk Composition On The Growth Of Angus Calves
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Book Synopsis The Effect of Dam's Milk Yield and Milk Composition on the Growth of Angus Calves by : John Chrysostom Serwanja
Download or read book The Effect of Dam's Milk Yield and Milk Composition on the Growth of Angus Calves written by John Chrysostom Serwanja and published by . This book was released on 1969 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Records-of-performance Tests by : Warren Gifford
Download or read book Records-of-performance Tests written by Warren Gifford and published by . This book was released on 1953 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Beef Cow Milk Yield and Composition on Calf Growth and Cow Reproduction by : Michael Bardin Larremore
Download or read book The Effects of Beef Cow Milk Yield and Composition on Calf Growth and Cow Reproduction written by Michael Bardin Larremore and published by . This book was released on 1998 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Milk Expected Progeny Difference on Milk Yield, Composition, and Growth Characteristics in Angus Cattle by : Clinton Ray Young
Download or read book Influence of Milk Expected Progeny Difference on Milk Yield, Composition, and Growth Characteristics in Angus Cattle written by Clinton Ray Young and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Milk Yield in Cows and Maternal Influences on Growth of Twin and Single Offspring Following Embryo Transfer by : Stephen Patrick Smith
Download or read book Milk Yield in Cows and Maternal Influences on Growth of Twin and Single Offspring Following Embryo Transfer written by Stephen Patrick Smith and published by . This book was released on 1979 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interrelationships of Milk Yield, Milk Composition, and Calf Growth by : Vernon Martin Gleddie
Download or read book Interrelationships of Milk Yield, Milk Composition, and Calf Growth written by Vernon Martin Gleddie and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forty-two beef cows composed of six breed-age groups were milked four times during their lactation to establish production levels, constituent percentages, and lactation trends. Fourteen additional cows of the same breed-age groups, and calving a month earlier, were milked to estimate the persistency of lactation trends. Milking was done by machine with the use of oxytocin. A 12-hour milk yield of one-half of the udder was multiplied by four for a 24-hour yield estimate. Milk was analyzed for butterfat, protein, solids-not-fat, and total solids. Calf milk consumption was measured in the first month. Breed-age group averages for 24-hour milk yield ranged from 8.2 to 18.5 pounds with a herd average of 14.2 pounds. The beef cows showed a decline in milk yield from the first to the fifth month, which is different from dairy cattle lactation trends where a rise normally occurs from the first to the second month. The difference was probably due to the effect of calf suckling. In the first month of lactation, milk production was generally in excess of the calf's capacity to consume, and there was a physiological restriction to increased production. However, in those breed-age groups where the calves were found to consume all the milk available in the first month, milk production did increase to the second month. Lactation averages for butterfat, protein, solids-not-fat, and total solids were 3.9, 3.5, 9,1, and 13.0 per cent, respectively. Butterfat increased from the beginning; very sharply toward the end. Other constituents decreased to the second month and then increased. Data from the 14 cows indicated a continuation in the rise of butterfat and total solids and a levelling-off in the rise of protein and solids-not-fat percentages. An analysis of variance showed that breed of dam contributed significantly (P
Book Synopsis Nutrient Requirements of Beef Cattle by : Subcommittee on Beef Cattle Nutrition
Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Interaction of Suckling-calf Behavior, Dam's Milk Production and Calf Growth by : Jaime Alfonso Peschiera
Download or read book Interaction of Suckling-calf Behavior, Dam's Milk Production and Calf Growth written by Jaime Alfonso Peschiera and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The suckling behavior of 46 calves was observed in June, July and August, 1965. The major study involved 40 Hereford cows with 20 purebred (HE) and 20 crossbred (XB) calves, each group having 10 males and 10 females. The results from the second observation and from the six extra cows and calves were not used. Purebreds averaged 3.1 and crossbreds 3.4 sucklings per day in June and 3.6 and 3.8, respectively, in August. The peak nursing times were early morning, noon and late afternoon. Milk yield for the 46 cows was measured in July, August, September and October. The average 24-hour milk yield was 4.0 kg, with a range from 2.3 to 6.0 kg. The monthly average yields for dams with XB calves declined from 5.4, 4.0, 3.3 to 3.1 kg/day and those for dams with HE calves from 5.8, 4.1, 3.3 to 2.8 kg/day. The milk yield of the former was significantly (P-=cn0.01) higher in the later stages of lactation. The greater persistency of lactation of dams with XB calves was probably influenced by the higher frequency of nursing and heavier weights of their calves. The males were heavier throughout the suckling period, but only significantly (PC0.05) so at birth. The average daily gain (ADG) from birth to weaning for XB and HE calves was 0.69 and 0.65 kg respectively; the crossbreds gained consistently faster throughout the period and significantly (P
Book Synopsis Influence of Sire Line Expected Progeny Differences on Milk Yield, Composition, and Growth Characteristics in Angus Cattle by : Amanda Jane Masholie
Download or read book Influence of Sire Line Expected Progeny Differences on Milk Yield, Composition, and Growth Characteristics in Angus Cattle written by Amanda Jane Masholie and published by . This book was released on 1998 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Milk Yield, Milk Fat Percent and Fat Yield of Brown Swiss X Angus Crossbred Cows on Calf Preweaning Growth by : William Isea Villasmil
Download or read book The Effects of Milk Yield, Milk Fat Percent and Fat Yield of Brown Swiss X Angus Crossbred Cows on Calf Preweaning Growth written by William Isea Villasmil and published by . This book was released on 1985 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Behaviour of Beef Suckler Cattle (Bos Taurus) by : Kiley-Worthington
Download or read book The Behaviour of Beef Suckler Cattle (Bos Taurus) written by Kiley-Worthington and published by Birkhäuser. This book was released on 2013-11-22 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Animal Science written by and published by . This book was released on 1987 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Sire Milk Expected Progeny Differences on Milk Yield, Composition, and Growth Characteristics in Aberdeen Angus Cattle by : John Allen Etheridge
Download or read book Influence of Sire Milk Expected Progeny Differences on Milk Yield, Composition, and Growth Characteristics in Aberdeen Angus Cattle written by John Allen Etheridge and published by . This book was released on 2002 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dairy 2002 written by and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genomic Effects on Milk Fatty Acid Composition of Beef Cows and Its Influences on Calf Pre-weaning Growth by : Zhuo Deng
Download or read book Genomic Effects on Milk Fatty Acid Composition of Beef Cows and Its Influences on Calf Pre-weaning Growth written by Zhuo Deng and published by . This book was released on 2014 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research has shown milk yield (MWT) has an important influence on calf pre-weaning ADG (PRWADG), but MWT accounts for only a moderate amount of variation in PRWADG. The objective of this study was to determine if milk fatty acid methyl esters (FAME), alone and in combination with MWT, could improve accuracy of prediction of PRWADG. Forty-five beef cows sired by Bonsmara, Brangus, Charolais, Gelbvieh, Hereford and Romosinuano bulls were used in a 2-year study. Spring-calving cows were milked 6 times per year every 28 days beginning late May, and milk samples were analyzed for milk fat and protein. Milk samples collected in May, July and September each year were analyzed for FAME. Percentages of 42 FAME in each milk sample were acquired using a gas chromatograph flame ion detector. Milk weights, quality data, and FAME were averaged over collection dates prior to analyses. Stepwise regression was used to identify linear models to predict PRWADG using MWT, age of dam (AOD), and percent FAME. The R2 and associated condition index (CI, an indicator of collinearity) were used in model evaluation. Condition indexes less than or close to 30 were considered to have low collinearity. Regression of PRWADG on MWT resulted in an R2 of 0.35 with a CI of 9.4 while inclusion of AOD gave an R2 of 0.4 and a CI of 21.6. A regression equation using 8 FAME accounted 54% of the variation in calf ADG with a CI of 33. When MWT and AOD were included with FAME as predictors, a prediction equation with 8 FAME, MWT, and AOD accounted for 69% of the variation in PRWADG with a CI of 29. Partial least squares regression (PLS) was also used to predict PRWADG from FAME, MWT, and AOD. Results from PLS analyses yielded a dependent variable R2 of 0.61 using all 42 FAME with 7 extracted factors and a dependent variable R2 of 0.78 28 when MWT and AOD were included with the 42 FAME with 7 extracted factors. Results from these preliminary analyses suggest that FAME composition of milk influences calf ADG and that data on percent FAME in combination with MWT and AOD can improve the accuracy of prediction of calf PRWADG compared to MWT and AOD alone.
Book Synopsis Factors Affecting Calf Crop by : Michael J. Fields
Download or read book Factors Affecting Calf Crop written by Michael J. Fields and published by CRC Press. This book was released on 1993-11-23 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Intensive Beef Production by : T. R. Preston
Download or read book Intensive Beef Production written by T. R. Preston and published by Elsevier. This book was released on 2013-10-22 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensive Beef Production, Second Edition focuses on the technologies, methodologies, and approaches involved in beef production, including genetics, breeding, feed utilization, fertility, and growth efficiency. The publication first elaborates on the beef market, carcass composition and quality, and genetic improvement. Discussions focus on breeding systems, correlation between traits, selection for meat production in dairy cattle, body weight and composition, carcass evaluation, consumption, and international trade. The book then examines genotype, physiology of digestion and feed utilization, and beef calf production, including factors controlling feed intake, nitrogen utilization, artificial methods of augmenting fertility, birth weight, calf mortality, and weaning weight. The text takes a look at dairy calf production, breed, sex, and hormones, and growth and efficiency. Topics include energy concentration and source, grain processing, protein, antibiotics, vitamins, growth mechanisms, breed, hormones, breed suitability, and mortality and disease. The book is a valuable reference for researchers interested in beef production.
