KLOREN W R L,NORTON B W,WATERS M J.Fleece growth in Australian cashmere goats.1.The effects of nutrition and age on fleece growth,prolactin and thyroxine concentration[J].Australian Journal of Agricultural Research,1993,44(5):1003-1021.
[9]
LITHERLAND A J.The role of plasma prolactin concentration in seasonal fiber growth cycles in down-producing goats and Wiltshire sheep[J].Physiological Reviews,1996,80(4):1523-1631.
[10]
EMESIH G C,NEWTON G R,TET T H,et al.Effects of Photoperiod and continuous administration of melatonin on plasma concentrations of prolactin in cashmere goats[J].Small Ruminant Research,1993,11(3):247-256.
[11]
WULILI T,LITHERLAND A,GOETSCH A L,et al.Evaluation of melatonin and bromocryptine administration in Spanish goats:Ⅱ.Effect on seasonal cashmere growth,yield and fiber characteristics of does[J].Small Ruminant Research,2003,49(1):41-49.