Winter Nutrition of Fall-calving Cows and Calves PDF Download
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Author: Henry Ashby Turner
Publisher:
ISBN:
Category : Calves
Languages : en
Pages : 34
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Author: Henry Ashby Turner
Publisher:
ISBN:
Category : Calves
Languages : en
Pages : 34
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Author: Duane Davis
Publisher:
ISBN:
Category : Cattle
Languages : en
Pages : 68
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Author: Subcommittee on Beef Cattle Nutrition
Publisher: National Academies Press
ISBN: 0309069343
Category : Technology & Engineering
Languages : en
Pages : 249
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Book Description
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.
Author: Heidi Renata Buehner
Publisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 102
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Two management systems were evaluated in terms of the effects on cow condition score and body weight changes and calf growth rates. The management systems evaluated were winter supplementation of energy, winter creep feeding and delayed weaning. The calves used in this study were born in September and October of 1981. The 48 cows and their calves were brought to a feedlot situation in December and allotted to four groups to allow controlled feeding of an energy or a non-energy supplement to the cows and a creep feed to the allotted calves. The cows receiving 3.64 kg rolled barley/head/day were not different in either body weight or condition score (1 to 5 condition score scale) from the cows fed a protein (non-energy) supplement which was fed at a level to provide the equivalent protein intake for all the cows. That is, there was no effect of the additional energy present in the rolled barley on the performance of the cows or their nursing calves. Creep feeding had a significant effect on calf end weight (P=.001) and calf rate of gain (P=.001). The creep fed calves were on the average 12.95 kg heavier at the end of the trial and gained an average of 9.34 kg more than the calves not creep fed. Creep feeding, though, in today's marketplace may not be a cost effective alternative for the commercial beef producer. Delayed weaning (DW) significantly increased the ADG of calves between the ages of 196 to 266 days of age (P=.001). Steers gained significantly faster than the heifers during this period (P=.001). DW calves did not have a significantly higher ADG than the control (C) calves during the postweaning period (to yearling age), but the DW ADG from 196 days of age to yearling age was still significantly greater than the C calves (P=.001). Postruminal digestion of milk during the experimental period may be the reason for the additional gains by the DW calves. Delayed weaning of fall born calves appears to be a sound management alternative under western Oregon conditions. Winter supplementation of cows and/or calves during the winter months did not realize significant changes in body weight and condition or the profitability of the sale of beef calves.
Author: Marvel L. Baker
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 56
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Author: Muhammed Ahmed Badawi
Publisher:
ISBN:
Category : Cattle
Languages : en
Pages :
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Author: Richard Dale Furr
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
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Author: Maurice Lee Ray
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 38
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Author: Kyle James Mclean
Publisher:
ISBN:
Category :
Languages : en
Pages : 70
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Book Description
Fall calving cows were used to determine the effects of protein supplementation on reproduction, and growth and carcass characteristics of calves. Cows were individually supplemented from mid-November to mid-March for four years with either a control diet (Con; 1.82 kg/d of 38 % CP) or low diet (L; 0.2 kg/d of 8% CP). During each year, cows were reassigned dietary treatments according to calving date and BCS, with half of Con and L cows remaining on the same diets as the previous year and the other half assigned to the other diet. Cows were exposed to bulls for 60 d beginning December 1. Statistical analyses were performed with a 2 x 2 factorial design with PROC GLM and PROC FREQ. Cows on Con diets lost less BW from November to January compared with L cows (-29.8 ± 2.8 and -49.7 ± 2.8 kg, P
Author: Daniel J. Drake
Publisher: UCANR Publications
ISBN: 1879906732
Category : Technology & Engineering
Languages : en
Pages : 152
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Book Description
