| abstract |
A kind of mutton sheep breeding and pregnant feeding method.Strengthen seed selection, apolegamy：Stud ram selects：Ram is cultivated in selection in the ewe offspring high from reproductive capacity；Ewe selects：Not after selection excellent individual from polyembryony ewe offspring；2nd, the utilization of polyembryony gene：Polyembryony kind is introduced, is hybridized with local varieties, is to improve most fast, the most effective and most easy method of reproductive capacity；3rd, reproduction technique controls：Heat controls：Lamb is weaned ahead of time, first carries out early weaning to lamb, then cause heat and ovulation with HORMONE TREATMENT mother；Superfecundation：4 days before ewe heat arrival, muscle or hypodermic injection pregnant mare serum gonadotrop(h)in (PMSG)；Lure production twins, polyembryony；Gestation sheep forage feed is used in the gestational period：Pregnant sheep feed includes the raw material of following percentage by weight, corn 56%, wheat bran 12%, dregs of beans 18%, poor slag 10%, premix 4%.The present invention can make the quick heat ovulation of ewe, and fertilization success rate is high, and lamb Birth weight improves 15%；Survival rate has been respectively increased 10%. |