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Sources of Intramammary Infections from Staphylococcus aureus in Dairy Heifers at First Parturition
heifer mastitis Staphylococcus aureus mastitis sources transmission
2008/8/1
The study objective was to identify probable sources and modes of transmission of 91 Staphylococcus aureus isolates obtained from the colostrum of 76 heifers at parturition. Sources cultured were milk...
The Effect of Recombinant Bovine Placental Lactogen on Induced Lactation in Dairy Heifers
bovine placental lactogen prolactin induced lactation mammogenesis
2008/7/17
The primary objective of this study was to determine whether bovine placental lactogen stimulated additional mammary growth as assessed by milk yield from a lactation induced by steroids. Pubertal, no...
The Response of Altering the Ratio of Dietary Protein to Energy on Growth, Feed Efficiency, and Mammary Developmentin Rapidly Growing Prepubertal Heifers
ADG ME Feed Efficiency
2008/7/4
This study was conducted to evaluate the effects of increasing the ratio of dietary protein to energy above National Research Council recommendations on average daily gain, feed efficiency, structural...