In summer and autumn, due to the high temperature, high humidity, and the negligence of farmer households on rabbit management, environmental factors such as poor ventilation, air pollution in the rabbit house, and lack of light can cause the rabbit to be unable to perform normal estrus, breeding, etc. Ultimately, the reproductive rate is low. Of course, the low breeding rate of rabbits is due to a variety of reasons. It is difficult to solve problems that only solve one problem. To this end, it reminded the raising of rabbits, combined with their own actual situation, to find out what was missing, and to take comprehensive prevention and control measures so as to increase the reproduction rate of rabbits and the overall breeding efficiency. 1. Temperature reason The excessively high temperatures in the summer and autumn caused the decline of male rabbit testicular function is the most serious problem affecting the reproduction rate in production. In contrast, female rabbits are less sensitive to temperature than male rabbits. However, due to the high temperature caused by male rabbit testicular tissue atrophy, temporarily lost spermatogenic ability, so the fertility rate and birth rate are very low. Measures: In the summer and autumn, the facility should be equipped with a cooling device to prevent heat stress from affecting rabbits. Rabbits should be provided with appropriate home and outdoor living conditions and reproductive conditions to ensure normal female estrus and timely breeding. Summer and summer heatstroke work is done well, so that the rabbit house temperature to maintain the ideal temperature required for breeding rabbits is 15 ~ 25 °C, not only can avoid heat stroke can also make the female rabbit continue to breed in summer and autumn. Long-term nutritional deficiencies, lack of certain nutrients, or certain nutrients can inhibit the sexual function of rabbits and reduce the quality of sperm and eggs. Conversely, over-nutrition, especially excessive energy levels, can cause large numbers of rabbits to build up. Fat. Measures: Breeding rabbit nutrition is the main factor affecting fertility, determine the appropriate level of nutrition, design a reasonable feed formula, according to the specific situation of each species of rabbit to determine the amount of feed each day, is to ensure that the rabbit nutrition balance, maintain Good body condition, strong breeding ability and high reproductive power are indispensable for the three links. 3. Physiological deficiency The female rabbit suffers from congenital defects, genital malformations, defects, ovarian hypoplasia, and female reproductive dysfunction. Male rabbits have small testes, single testes, and cryptorchidism. Measures: For male and female rabbits with congenital defects, male and female rabbits with hypoplasia of single testes, cryptorchidism, ovaries, or uterus and suffering from genital diseases are eliminated in time; they can be treated as meat rabbits after fattening; The reserve species of rabbits, to strengthen management, to reduce the emergence of congenital defects in female rabbits. Frail and sick Feed intake decreased at high temperatures, leaving the rabbit in a sub-healthy state with growth arrest and reproductive problems. Male and female rabbits are old and weak. Female rabbits suffering from in vitro and in vivo parasites, chronic infectious diseases, diseases of the digestive system and reproductive system, can all lead to weakness of the female rabbits, weight loss without estrus, or a direct impact on female oestrus. Measure: For females that are not estrus due to diseases, female rabbits must first be cured and then carefully reared so that the female rabbits will recover as soon as possible. After the natural estrus or artificial aphrodisiac, they will be bred in due course. The frail and incurable male and female rabbits were eliminated in time for fattening and treated as meat rabbits. After a female rabbit is 3 to 4 years old, it is prone to abnormal estrus. Some female rabbits do not even appear estrus, and some have poor ovum quality. Even if they can estrus and conceive, they will lead to a weak physique and survival of newborn rabbits. The rate is low and growth is slow. Measure: The most suitable breeding age for rabbits is 1 to 3 years of age. It is not recommended to use other rabbits except for some excellent rabbits. 6. Improper use Excessive use of male rabbits will have adverse consequences. On the contrary, it is not good for the male rabbit to be idle for a long time. Measures: Healthy adult male rabbits are bred one or two times a day for two consecutive days of rest and can be arranged six to eight times a week. 7. Environmental factors Measures: Establish a scientific and reasonable light system. Generally, the daily light time is 14 to 16 hours, and artificial light is used to make up for the lack of natural light. Rabbits require environmental noise to be below 85 decibels. Maintaining a quiet environment is a basic principle for raising rabbits. The ventilation of the rabbit house is very closely related to the health management of the rabbit house environment and the growth of rabbits. The wind can not only regulate the temperature, prevent the humidity from being too high, but also facilitate the introduction of fresh air and the removal of dirty air and dust. However, the amount of ventilation and the speed of wind must be controlled. It can be controlled through the scientific design of the rabbit house and the configuration of ventilation facilities. The suitable relative humidity for Rex rabbits is 45% to 65%. 8. Breeding technology Male rabbits do not breed for a long period of time, their sexual desire is inhibited, affecting the breeding effect; sperms stored in the epididym are senescent and die, the rate of dead sperm and deformed sperm in the discharged semen is high, the conception rate and the number of litters are reduced, long-term overloaded breeding It will cause the public rabbits to make ends meet. Not only can the male rabbits not bear the body, the body can quickly decline, the resistance to disease can be reduced, and it can easily lead to illness and premature senility. At the same time, it can also result in poor semen quality, reduced conception rate and litter size. Measures: The best breeding time is in the middle and late stages of heat. In addition, there is also a timely issue on the day of breeding, early summer and late breeding better, to grasp the female rabbit estrus period (female rabbit 7 to 15 days estrus, each lasting 3 to 4 days), timely breeding. It is generally best to use mating when the female genital area is large red. This can improve the conception rate and can also be used for double matching. (The female rabbits in the same estrus period have used two male rabbits to breed or have been separated from the male rabbit for 8 hours. Match 1). 9. Harmful substances For example, urinary enzymes are contained in beans. Cottonseed kernels contain gossypol and propylene compounds and can affect breeding of female rabbits. Mustard, Gan Lan, cabbage and other cruciferous plants contain glycosides - mustard meal, by the enzyme mustard, can generate thiocyanate and other harmful substances cause rabbit disease, leading to decreased fertility. Measure: Use cottonseed cake as feed, need to carry out detoxification in advance and strictly control its added feeding amount. Beans should be cooked or fried. Crucifers should be fed with other pastures to feed rabbits. 10. Nutritional imbalance Due to too much energy feed in the rabbit diet, too little protein feed or insufficient amount of grain feed, resulting in the female rabbit body condition is too fat or too thin, resulting in the female rabbit does not have estrus. The lack of vitamin A and E in the feed. Measures: The fattening female rabbits should appropriately reduce the feeding amount of grain feeds. At the same time, they should also strengthen the exercise to control the female rabbits' nymphaeosis, and can also adopt injection of ethylene-estradiol for aphrodisiac. The dosage is generally 0.5-1 mg; Too thin female rabbits need to add ingredients to increase bran, add sugar, glucose or milk powder, and at the same time improve the quality of the feed to increase the rabbit's feed intake. Feed more carrots, cabbage leaves, pumpkins and other vitamin A-rich green juicy feed. Anticancer, it can arrest the proliferation of malicious cell, which will prevent arthritis and other diseases. There are Apricot Kernel Extract Vitamin B17, Apigenin powder 98%, Polygonum cuspidatum extract Resveratrol, 5-ALA HCl and Horse chestnut extract UV 40% are sold.Welcome to contact us for more details. Anti-Cancer Health Care Ingredients,Anti-Cancer Health Ingredients,Anti-Cancer Health Care Supplement,Health And Pharma Xi'an Natural Field Bio-Technique Co., Ltd. , https://www.naturalnf.com
2. Nutritional reasons
5. Age reasons
Breeding female rabbits in a long time, poor ventilation and air pollution in the rabbit house, excessively dry or wet, lack of light, noise and disturbance and other adverse factors from the environment, if the female rabbit in a long time in such environmental conditions In the future, the female rabbit may not be estrus or estrus may be abnormal, thereby affecting the completion of the mating task.