Effect of Plane of Nutrition Before and After 200 Kilograms of Body Weight on Mammary Development of Prepubertal Holstein Heifers

Twenty Holstein heifer calves at 138 d of age and 118kg of BW were assigned randomly to one of four treatments in a factorial design. Heifers were fed for low (0.7 kg/d) or high (>1.0 kg/d) gain during two periods. Period 1 was from start to 200kg of BW, and period 2 was from 200kg of BW to slaug...

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Veröffentlicht in:	Journal of dairy science 1996-07, Vol.79 (7), p.1255-1260
Hauptverfasser:	Niezen, J.H., Grieve, D.G., Mcbride, B.W., Burton, J.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adipose Tissue - growth & development adipose tissues adn age Aging Animal Nutritional Physiological Phenomena Animal productions animal tissues Animals arn Biological and medical sciences Body Weight Cattle - growth & development chemical composition composicion quimica composition chimique contenido de materia seca dna DNA - analysis dry matter content edad feed intake feeding level Female Fundamental and applied biological sciences. Psychology gain de poids ganancia de peso genisse glande mammaire glandulas mamarias heifers ingestion de piensos madurez sexual mammary development mammary glands Mammary Glands, Animal - growth & development maturite sexuelle niveau d' alimentation nivel alimenticio novilla nutrition Organ Size peso plane of nutrition poids prepubertal development prise alimentaire animaux rna RNA - analysis Sexual Maturation sexual maturity tejido adiposo tejidos animales teneur en matiere seche Terrestrial animal productions tissu adipeux tissu animal Vertebrates weight Weight Gain
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