排卵率是限制母猪窝重的主要因子，在配种前提高采食量能显著性地增加排卵效率。
Ovulation rate is the principle factor limiting litter size in gilts and increasing the level of feed intake prior to mating will significantly increase ovulation rate.
结果表明，60日龄仔猪数、20日龄窝重和初生窝重，是影响断奶窝重的重要因素。
Results show that 60—day litter size, 20—day litter weight and litter weight at birth are important factors influencing weaning weight of litter.
并窝3只的乳鸽体重增长与非并窝的乳鸽相似，但饲料报酬明提较高，重料比差异极显著（P<0.01）；
The weight of 3 co-nesting pigeons and non-nesting pigeons is similar, but the repayment of fodder evidently increases(P<0.01).
相对窝卵重与母体体长呈显著的负相关，表明较小的母体具有相对较大的繁殖输出。
The relative clutch mass was negatively correlated with maternal size, indicating that the smaller reproductive female had the relatively greater reproductive output.
窝卵数、窝卵重和卵重均与母体体长无关。
The clutch size, clutch mass and egg mass were all independent of maternal size (SVL).
然而，大窝不仅带来出生仔猪和断奶仔猪体重较轻的问题，而且同窝内仔猪初生重和断奶重的变异更大。
However, large litters bring problems, with lighter piglets born and weaned, and greater within-litter variation in piglet birth and weaning weight.
然而，大窝不仅带来出生仔猪和断奶仔猪体重较轻的问题，而且同窝内仔猪初生重和断奶重的变异更大。
However, large litters bring problems, with lighter piglets born and weaned, and greater within-litter variation in piglet birth and weaning weight.
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