McNitt J I, Lukefahr S D
Center for Small Farm Res., Southern Univ., Baton Rouge, LA.
J Anim Sci. 1990 Jun;68(6):1505-12. doi: 10.2527/1990.6861505x.
Lactation records (n = 86) from 60 does of four breeds (Californian, New Zealand White, Palomino and White Satin) were analyzed to assess the effects of breed, parity, day of lactation and number of kits on milk production. Breed of doe tended (P less than .07) to be important for mean milk yield according to ANOVA results. Californian does had numerically higher production than did does of the other breeds. Doe body weight, litter size born alive and weaned and litter weaning weight, likewise, were not influenced (P greater than .05) by breed of doe. Significant linear and quadratic relationships were found between milk production vs day of lactation, and milk production vs number of kits. However, breed x days and breed x number of kits interactions (P less than .05) indicated that the individual breeds responded differently to two of these effects. Peak lactation occurred at approximately 20 d after kindling. As kit number increased, milk yield also increased to a predicted maximum when 12 kits were suckling. Parity tended (P less than .10) to influence lactation yield in a curvilinear manner, increasing steadily through the seventh parity and declining thereafter. A nonsignificant residual correlation (.34) between milk production and doe body weight was observed. Corresponding correlations between milk production were high for litter size born alive and weaned (r = .62 and .87, respectively) and litter weaning weight (r = .86). Although lactation curves are unique to each particular breed, milk yield is influenced by several factors.
对来自四个品种（加利福尼亚兔、新西兰白兔、帕洛米诺兔和白色缎毛兔）的60只母兔的86份泌乳记录进行了分析，以评估品种、胎次、泌乳天数和仔兔数量对产奶量的影响。根据方差分析结果，母兔品种对平均产奶量似乎有重要影响（P < 0.07）。加利福尼亚母兔的产奶量在数值上高于其他品种的母兔。母兔体重、产活仔数、断奶仔数和窝断奶重同样不受母兔品种的影响（P > 0.05）。在产奶量与泌乳天数以及产奶量与仔兔数量之间发现了显著的线性和二次关系。然而，品种×天数和品种×仔兔数量的交互作用（P < 0.05）表明，各个品种对其中两种影响的反应不同。泌乳高峰期大约在产仔后20天出现。随着仔兔数量的增加，当有12只仔兔哺乳时，产奶量也增加到预测的最大值。胎次似乎（P < 0.10）以曲线方式影响泌乳量，在第七胎之前稳步增加，此后下降。观察到产奶量与母兔体重之间存在不显著的残差相关性（0.34）。产奶量与产活仔数和断奶仔数（分别为r = 0.62和0.87）以及窝断奶重（r = 0.86）之间的相应相关性较高。尽管每个特定品种的泌乳曲线是独特的，但产奶量受几个因素的影响。
