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- Amundson, O. L.; Fountain, T. H.; Larimore, E. L.; Richardson, B. N.; McNeel, A. K.; Wright, E. C.; Keisler, D. H.; Cushman, R. A.; Perry, G. A.; Freetly, H. C.
- Journal of animal science 2015 v.93 no.11 pp. 5232-5239
- alfalfa hay; beef cattle; body weight; breeding; calves; cattle feeding; compensatory growth; corn silage; cortex; crossbreds; genes; heifers; histology; leptin; longevity; low calorie diet; messenger RNA; nutritional intervention; ovarian development; ovarian follicles; ovariectomy; overfeeding; reverse transcriptase polymerase chain reaction; small cereal grains; weaning
- ... From weaning to breeding, nutritional management of replacement females is critical to their lifetime productivity. Traditionally, cereal grains have been used to develop replacement heifers to enter the breeding system at a younger age. Overfeeding heifers decreases the number of calves weaned, while peri-pubertal caloric restriction increases primordial follicle numbers in the developing ovary. ...
- Myer, P. R.; Wells, J. E.; Smith, T. P.L.; Kuehn, L. A.; Freetly, H. C.
- Journal of animal science 2015 v.93 no.11 pp. 5327-5340
- Coprobacillus; Oscillospira; Prevotella; Ruminococcus; bacterial communities; beef cattle; cattle feeding; cattle feeds; cecum; diet; feed conversion; feed intake; genes; high-throughput nucleotide sequencing; ribosomal RNA; species diversity; steers
- ... Apart from the rumen, limited knowledge exists regarding the structure and function of bacterial communities within the gastrointestinal tract and their association with beef cattle feed efficiency. The objective of this study was to characterize the microbial communities of the cecum among steers differing in feed efficiency. Within 2 contemporary groups of steers, individual feed intake and BW g ...