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  • Title: Milk yield and mammary function in goats during and after once-daily milking.
    Author: Wilde CJ, Knight CH.
    Journal: J Dairy Res; 1990 Nov; 57(4):441-7. PubMed ID: 2266196.
    Abstract:
    Starting in week 5 of lactation, goats were milked unilaterally once daily for 4 1/2 weeks, then twice daily for 12 weeks and finally thrice daily for 2 weeks. The control gland was milked twice daily throughout. During less frequent milking, yield fell by 26%. There was a rapid and essentially complete recovery of milk yield on resumption of twice-daily milking, and five of the six goats subsequently responded to thrice-daily milking with a small increase in milk yield. Mammary function was assessed during each phase by determining enzyme activities and in vitro synthesis rates of lactose and casein in mammary biopsies. There was a trend towards reduced differentiation of secretory cells during infrequent milking, with very little recovery during twice-daily milking but complete recovery during thrice-daily milking. The differentiative state of the control gland remained unchanged throughout.
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