Artificial long-day photoperiod in the subtropics increases milk production in goats giving birth in late autumn.

Abstract

Two experiments were conducted to determine whether exposure to a photoperiod of artificial long days in autumn increased milk yield in subtropical goats milked once (Exp. I) or twice daily (Exp. II). In Exp. I, starting at d 10 of lactation, 1 group of does was kept under naturally decreasing photoperiod (DD1X; n = 8), whereas the other group was submitted… (More)
DOI: 10.2527/jas.2010-3232

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