Analysis of the Causes of Fetal Resorption in Angora Rabbits and Prevention and Control Methods
The Angora rabbit is an important economic rabbit breed, and its fur is mainly used for textiles. Nowadays, the demand for it around the world is extremely large, and its breeding prospects and economic value are extremely high. However, during the breeding process, a phenomenon called fetal resorption occurs, which affects the development of Angora rabbits. Fetal resorption refers to the early death of embryos in the uterus of the Angora rabbit, which are then absorbed by the uterine mucosa without any symptoms of miscarriage. So what causes fetal resorption in Angora rabbits? How should it be prevented and controlled? Let's take a look together.
I. Causes
1. Excessive temperature
In the early stage of pregnancy in female rabbits, the temperature and humidity of the breeding environment are both relatively high. Especially when the temperature exceeds the tolerance point, the resistance of pregnant female rabbits declines, and fetal resorption occurs.
2. Weak constitution of the female rabbit
Pregnant female rabbits that are thin in body shape and weak in constitution have insufficient nutrition themselves. During embryonic development, because sufficient nutrition is not supplied, fetal resorption is caused.
3. Weak fertilized eggs
Weak fertilized eggs will cause the embryo to stop developing after growing to a certain extent, resulting in fetal resorption. This situation generally occurs when breeding rabbits are aging and their reproductive capacity is insufficient, or when breeding rabbits have not yet reached the mating age and are forcibly mated, this condition can also occur.
4. Disease
During the pregnancy of the female rabbit, if inflammatory diseases occur in the uterus or vagina, they will harm embryonic growth and lead to fetal resorption.
5. Stale feed
During pregnancy, the female rabbit must be fed enough feed to ensure its nutritional needs. However, if the feed is spoiled or moldy, the female rabbit will experience symptoms such as diarrhea after eating it, leading to a weak constitution and causing fetal resorption.
6. Lack of vitamins
If nutritional balance is not paid attention to during feeding, green feed is not fed for a long time, or the role of vitamins is not valued during feeding, the female rabbit will lack vitamins for a long time and suffer fetal resorption.
II. Prevention and Control Methods
According to the above causes of fetal resorption, targeted prevention and control should be carried out. For fetal resorption caused by excessive temperature, the temperature must be strictly controlled when the female rabbit is pregnant. Angora rabbits can survive at temperatures between 5-30 degrees, and the maximum temperature must not exceed 35 degrees, otherwise it will cause fetal resorption. It is recommended to control the temperature at 15-28 degrees. During the gestation period of the female rabbit, nutritional supplementation should be strengthened, and the proportion of concentrated feed should be increased so that the female rabbit has enough nutrition to promote embryonic growth. However, it must be remembered that the feed must be fresh, and attention should also be paid to balanced nutritional matching, especially the addition of vitamins. When mating, attention should be paid to the age of the breeding rabbits. Breeding rabbits that are too old should be eliminated in time, and young breeding rabbits must reach the mating age before mating. The prevention and control of diseases should be strengthened, the breeding environment should be kept hygienic and clean, and regular disinfection should be carried out to inhibit the growth of pathogens and reduce the probability of disease occurrence.
The above are the causes and prevention and control methods of fetal resorption in Angora rabbits. We hope it can help you. If you want to learn more about Angora rabbit breeding knowledge, please stay tuned to us.