Is it unhealthy for sows to sleep and kill piglets 5 days after delivery?

Jiangxi-Yinlin: sows need short-term preferential feeding from weaning to estrus, but what if sows don't like food during this period of time? they don't like eating just after weaning, and they don't like to eat when they are in estrus.

Answer

The purpose of short-term preferential feeding is to make sows have better estrus and ovulate more. Since sows tend to have a poor appetite during weaning to mating (especially after weaning and estrus), short-term preferential feeding should not be limited to these 5-6 days. It is recommended to start preferential feeding one week before weaning (5-7 days). In addition, the feed intake of sows is relatively fixed, the focus of optimal feeding is not simply to increase the amount of feed, should be targeted to supplement a variety of nutrients (organic trace elements, amino acids, etc., such as adding more 1kg/ tons of feed, can effectively improve the estrus, mating and pregnancy of sows).

Sow feeding difference can also be improved by adjusting pig house temperature, feeding time, feeding method and so on.

Zhang Xiaoyu: do weaning sows need iron supplements? What is the appropriate dose for each end of the iron supplement?

Answer

In general, the intake of iron in food is sufficient for sows, but due to blood loss during childbirth and lactation will cause iron deficiency, the need for appropriate amount of iron supplement.

It is suggested that each sow should be supplemented with 500-1000mg, and each weaned sow should use 4-5ml to supplement iron and further optimize estrus.

Hunan Zhou Huaxiong: when will the glucose be added and when will it stop?

Answer

Sow weaning is added to estrus, 200g/ / day, excessive amount of additives will inhibit feeding.

Hunan Hengnan Chen Qin: excuse me, 5 days after delivery, sows sleep to death piglets, is this sow unhealthy performance?

Answer

Not necessarily. In summer, stupid sows will affect their activities; weak motherhood of sows can easily crush piglets; poor management will also lead to crushing piglets. In general, overweight sows have a higher percentage of dead piglets, which can not judge whether the sows are healthy or not.

Army commander: how long does the sperm have the ability to fertilize in the reproductive tract of sows?

Answer

6-8 hours, so the interval between the first mating and the second mating is 8-12 hours.

Shenlin: sows have pain in their hooves before or after three months of pregnancy. What causes them?

Answer

Pig hoof injury infection caused by rough ground, pay attention to ground maintenance (not too rough) and environmental hygiene; deal with symptomatic treatment to save piglets; if the follow-up symptoms are still serious, it is recommended to be eliminated after delivery.

Pingping light: sows will urinate tofu pudding-like things, is how to return a responsibility?

Answer

The secretion of bean curd residue from pregnant sows is generally related to water quality (water hardness is too high or alkalinity is too high), which is more common in the north of China. It is recommended to use tap water or clean water 3.9.

Zhou Zhen: when do sows start to match best when they are in estrus?

Answer

① looked at the changes of the vulva of sows, when the vulva of sows began to atrophy from redness and swelling; ② looked at the static reflex of sows