Influence of Repeated Oxytocin Injections on Composition of Dairy Cows’ Milk
1970; Elsevier BV; Volume: 53; Issue: 4 Linguagem: Inglês
10.3168/jds.s0022-0302(70)86224-5
ISSN1529-9066
AutoresLane Ga, C.W. Dill, Brenna Armstrong, L.A. Switzer,
Tópico(s)Breastfeeding Practices and Influences
ResumoMilk fat, solids-not-fat, protein, and lactose were determined in milk from normal milking, followed by four successive intravenous oxytocic injections at 20-minute intervals.Milk fat per cent increased through the first oxytocic sample, then decreased to approximately the fat content of milk obtained by normal milking procedures.Solids-not-fat, protein, and lactose were all significantly (P < 0.01) lower in milk removed after the injection of oxytociu than in the sanlples taken during norreal milking.Milk yield approached a constant level with repeated injections of oxytocin, indicating a constant rate of secretion.Rate of secretion approached the rate needed to synthesize the milk produced daily by these cows.
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