In terms of energy density, the cost of shipping hay is often not justified in yr where adverse conditions limit available forage. Our objective was to determine if co-product feedstuffs could be used to meet the energy demands for cows in late pregnancy. Eighty-six crossbred cows (527 ± 0.8 kg BW) in late gestation were stratified by BW, BCS and age and allocated randomly to 1 of 6 groups held on 2-ha dormant bermudagrass pastures for 68 d. Three groups were offered bermudagrass hay ad libitum (HAY) and three groups were offered 6.4 kg of soybean hulls (LSH) daily and allowed access to mixed-grass hay for 1 h daily. Changes in BW, BCS, serum non-esterified fatty acids, and birth weights were minimal between treatments (P ≥ 0.12). In a companion study, 8 ruminally-fistulated cows (671 ± 32.0 kg BW) were stratified by BW and allocated randomly to1 of 4 treatments in a 2-period study: LSH, limit-fed distillers dried grains with solubles (LDG), a limit-fed mixture of SH and DDGS (MIX), or ad libitum mixed-grass hay (HAY). Total feces were collected for 5 d following a 28-d adaptation to diet and facilities in each period. Rumen fluid was sampled immediately prior to feeding and 2, 4, 6, 8, 10 and 12 hr post-feeding for ruminal fermentation assessment. Digestibility of DM, OM, aNDF and ADF was greater (P
This publication presents current state-of-the-art knowledge on the use of co-products from the biofuel industry as livestock feed. At present, biofuel production makes use of agricultural crops grown primarily on...
This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely.
J. Gen. Microbiol. 31, 461–469. Abou Akkada, A. R., and B. H. Howard (1960). Biochem. J. 76, 445-451. ... Commun. 18, 30–35. Allison, M. J., and M. P. Bryant (1963). Arch. Biochem. Biophys. 101, 269-277. Allison, M. J. ...
This book fills that gap, giving readers all the necessary information on important issues facing modern animal agriculture, namely its sustainability, challenges and innovative solutions.
Greenhouse gas emissions by the livestock sector could be cut by as much as 30 percent through the wider use of existing best practices and technologies.
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.
Effect of feeding Canavalia ensiformis on the rumen flora of sheep and of the toxic amino acid canavanine on rumen bacteria. Syst. Appl. Microbiol.. 13: 388-393. ... The Rumen and its Microbes. Académie Press, New York.
The book draws on examples from a variety of countries including Indonesia, Malaysia, Thailand, Vietnam, China, East Timor and the Philippines.
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 ...
Dairy herd management