繁殖母兔对蛋白质和能量的要求

The Requirement of Protein and Energy in Reproductive Female Rabbits

为了研究长毛母兔繁殖期对营养素的需要量，选用４０只成年母兔，分成三组，观察其妊娠期和哺乳期的特殊变化。结果表明：１、在日粮纤维素基本满足时，母兔对日粮蛋白质（ＣＰ）和消化能（ＤＥ）的要求是，哺乳期比妊娠期高。未试验条件下，妊娠期母兔以每日摄入４５．０２克／头ＣＰ和７００千卡／头ＤＥ为宜；哺乳期增加到６５．５４克／头ＣＰ和９５０－１０００千卡／头ＤＥ．２、繁殖期母兔通过摄食士的调整以满足自身生理需求。摄食量与体重间具有一定相关性，妊娠期ｒ＝０．３８，哺乳期ｒ＝０．６３，它们的直线方程分别为ｙ妊＝１８．７４＋０．３１ｘ，ｙ哺＝８７４．０３－２；１７ｘ．

In order to study the requirement of the crude protein and digestive energy in reproductiverabbits.40 adult rabbits,which were divided into three groups,were used to observed thespecially physiological requirement of rabbits in the gestation period and sucking period,The re-sults showed:1.The sucking rabbits needed more crude protein(CP)and Digestive energy(DE)than the gestation-rabbits when the crude fibre in a diet was enough for rabbits.Under this tri-al’s condition,45.02 g/day。head CP and 700 Kcal/day.head DE were suitable for the gestation-rabbits,and 65;54g/day;head CP and 950-1000kcal/day.head DE were necessary for thesucking-rabbits。2.meet the specially physic,The reproductive rabbits could adjust their feedintake to meet their physiological reguirement.Tere was a relation ship between the feed intakeand the body weight.the correlation coefficients were:rg=0.38(Y= 18.74+0.31x);rs=-0。63(Y=874.03D-2.17x)。