Growth and pubertal development in Brahman-, Boran-, Tuli-, Belgian Blue-, Hereford- and Angus-sired F1 bulls

Growth and testicular development between 7 and 15 mo of age were evaluated in bulls produced by mating sires of six breeds (Hereford, Angus, Belgian Blue, Brahman, Boran, and Tuli) to Angus, Hereford, and MARC III (four-breed composite) cows. At 12 mo of age, Angus- and Hereford-sired bulls had the...

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Veröffentlicht in:	Journal of animal science 2003, Vol.81 (6), p.1414-1426
Hauptverfasser:	Lunstra, D.D, Cundiff, L.V
Format:	Artikel
Sprache:	eng
Schlagworte:	adaptation Adaptation, Physiological - genetics Adaptation, Physiological - physiology Age Factors Aging - physiology Angus animal development animal growth Animal productions Animals Belgian Blue Biological and medical sciences Boran Brahman Breeding bulls Cattle - genetics Cattle - growth & development Cattle - physiology cattle breeds Fundamental and applied biological sciences. Psychology heat Hereford Hot Temperature Male puberty Seasons Sexual Maturation - physiology sires Terrestrial animal productions testes testicular development Testis - anatomy & histology Testis - growth & development Tuli Vertebrates Weaning Weight Gain - genetics Weight Gain - physiology yearlings
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