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A good way to improve ewe fecundity!
Release time:
2020-10-23
Lodge series nutritious licking bricks are rich in mineral trace elements such as "phosphorus, calcium, zinc, magnesium, iron, cobalt, iodine, manganese, selenium, sodium", etc., which are freely supplemented for individual ruminants in the group, and finally achieve the group micro-mineral balance, improve feed conversion rate, solve pica, and bring sustainable health to ruminants.
1. hybridization to promote multiple propagation
Introducing multiparous varieties and crossing them with local varieties is the fastest, most effective and easiest way to improve fecundity. With the introduction of the excellent meat with multiple breeds of rams, and domestic fine breeds of small tail Han sheep, Hu sheep, Chinese Merino, Northeast fine wool sheep and other hybrid, improve the fertility of local sheep.
2. choose to keep more lambs to grow sheep
The litter size of ewes is affected by heredity, and ewes bred from two lambs have a high probability of producing two lambs. Selecting the offspring of ewes with more than two lambs for breeding is an important way to improve the fecundity of sheep.
3. breeding of multiparous varieties
Many ewes with early sexual maturity, high lambing rate, oestrus throughout the year, strong lactation performance, good motherhood, strong lambing rate and strong disease resistance, as well as rams with fast growth rate, high feed utilization rate, strong adaptability and good carcass quality.
4. to improve herd nutrition
Improving the nutritional status of male and female sheep is an effective way to improve the fecundity of sheep.
Lodge series nutritious licking bricks are rich in mineral trace elements such as phosphorus, calcium, zinc, magnesium, iron, cobalt, iodine, manganese, selenium, sodium, etc.Free supplement for individual ruminants in the group, and finally achieve group micro-mineral balance, improve feed conversion rate, solve pica, bring sustainable health to ruminants.
Catching fat throughout the year, ewes not only neatly estrus, but also increase the number of ovulation. Short-term preferential feeding of ewes before breeding can increase the number of double lambs.
The nutritional level of breeding rams also had an effect on conception and lambing rates, birth weight and weaning weight. Feeding male and female sheep with full-price nutrients, the conception rate and lambing rate are high, and the primary weight of lambs is also large.
5. keep more ewe of the right age
The proportion of breeding ewes in the flock is more than 60%, which is an important way to improve the fecundity of sheep. If the proportion of capricorn (that is, the male sheep after castration) is too high, it is not conducive to improving the fecundity of the flock. Although the sheep can be sheared, it should be slaughtered in time after autumn fat, otherwise the weight will drop significantly after winter, resulting in waste of forage and artificial, which is very uneconomical.
If the proportion of ewes is large, more ewes can be bred, which can improve the fecundity of sheep, expand reproduction and increase economic benefits. Aged ewes after the age of 7 should be gradually eliminated according to the situation, and young ewes should be supplemented every year to expand the number of ewes of the right age.
6. strengthen feeding management
① Rams. The materials supplemented to the ram should be easy to digest, small in size, good in quality and good in palatability, and should be fed less coarse and juicy materials and more refined materials, so as to promote its strong physique, energetic, strong libido and body condition.In addition, it is best to feed each ram every day to lodge licking bricks to promote sperm production and improve vitality.
② Ewe. Reasonable feeding can ensure the normal oestrus of sheep, improve the conception rate and lambing rate and lamb health. Early pregnancy (about 3 months), generally do not need supplementary feeding, to two months after pregnancy, fetal growth fast, then should add concentrate. There is sufficient exercise during pregnancy, which is good for ewe health and fetal development. Feed can not have frost, mildew, avoid drinking ice water or cold water. Attention should be paid to the care of sheep during lambing.
7. early weaning induced emotion
Early weaning of lambs using artificial milk and artificial lambing techniques can shorten the lactation period of ewes and make them estrus early. In the period of ewe's lack of ewe, the use of hormones and biological treatment and other measures to cause normal estrus and breed, shorten the reproductive cycle of ewes, can improve the fecundity of sheep.
The first implementation of lamb early weaning, and then progesterone treatment ewes, after withdrawal subcutaneous injection of pregnant horse serum gonadotropin (a glycoprotein hormone) 600~1100 international units, can cause estrus, more ovulation; regulation of light cycle, so that the day is shortened, to achieve the purpose of estrus ovulation. Before the normal breeding season, the male and female sheep are mixed to advance the breeding season and shorten the time from postpartum to ovulation breeding to improve the fecundity of ewes.
8. eliminate inferior ewe
The first year of ewe infertility should be examined to find out the cause and overcome it. If the second year is still infertile should be eliminated. Ewes that produce dead lambs in the first year also have a high proportion of dead lambs in the future and should also be eliminated.
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