Breeding male rabbits is generally mastered with blended concentrates, supplemented by green fodder and roughage, and dietary protein levels are controlled between 16% and 17%. In winter and spring, it is necessary to supplement carrots, malt, cabbage, and other vitamin-rich feeds in the green season. The amount of feeding depends on the size of the breeding intensity and the breeder's body type and body condition (bridging). They usually feed about 150 grams per day. Obesity should not be caused by over-nutrition, nor should it be malnutrition and cause its physical fitness to decline. In the management of male rabbits, weight should be controlled first. The weight of male rabbits is not as large as possible. About 4 kg is ideal body shape. Because the greater the weight, the higher the incidence of foot dermatitis, the poorer the matching ability, the shorter the service life, the more nutrients consumed. Controlling the weight of male rabbits should begin in the reserve period and persist during the breeding period. Take a feed restriction method and disable free food intake. The quality of feed is higher, but usually it is controlled at 8 points, so that it is not fat or skinny. It does not allow too much nutrients to turn into fat. Secondly, it controls the initial allocation time. It is generally 6 to 7 months of age to master the official breeding period. Third, control the intensity of use. For young rabbits aged 1 to 2 years old, they can be bred twice a day and rest 2 days a week. Fourth, control the feeding environment. To keep clean, dry, cool and quiet, stress factors should be reduced, and the space for activities should be appropriately increased (the area of ​​the cage should be larger to increase the amount of exercise). In particular, summer heatstroke is the primary task of raising male rabbits. Empty female rabbits are pregnant during the empty period of pregnancy and are adjusted before the next rabbit is weaned until the next breeding. The feed formulation should be properly adjusted during this period, ie increase the crude fiber content, reduce the energy and protein ratio, and feed 130-150 grams per female rabbit per day; and feed the whole field with a single feed (irrespective of size and size). The rabbits in the physiology stage should strictly control the amount of feeding, and each female rabbit should be controlled below 130 grams per day. If the season and climate are appropriate, the female rabbit's empty period should be reduced as far as possible, and special aphrodisiac measures such as raising the nutritional level should be adopted. In the 7 to 10 days before the breeding of the female rabbits, the female rabbits are subjected to “short-term excellent feedingâ€, ie raising the nutrient level of the female rabbit's feed, increasing the amount of concentrate by 30%, and feeding carrots, barley malt, and high quality green fodder. Early estrus, multiple ovulation, multiple births. In order to increase the utilization rate of the cages, the female rabbits can be group-bred or two or three females can be kept in one cage during the empty period. However, attention must be paid to observing the estrus performance in order to allow timely breeding. Since the female rabbits are not suitable for vaccinating and feeding drugs during pregnancy and lactation, these efforts are focused on the rest of the female rabbit. The gestation period of the pregnant female rabbit refers to the time from the mating of the female rabbit to the delivery, which takes about one month. In actual production, the gestation period of the female rabbit is divided into two stages, namely the pre-pregnancy period (1 to 15 days) and the late pregnancy period (16 days to delivery). In the early period, the absolute weight gain of the fetus is small, and the nutrition needed is not much. There is no need to substantially increase the nutritional level of the female rabbit, and the fetus can be approached or slightly improved. After the 15th day of pregnancy, due to the acceleration of fetal development and the increasing demand for nutrients, the level of nutrition and the amount of feed should be gradually increased, and the transition to free intake (after 20 days); 20 to 28 days for free intake; 28 days After the majority of females lost appetite, and some even hunger strikes. If it is not properly managed at this time, it may cause adverse consequences. The number of feeds must be reduced. While feeding a full amount of feed, some young female rabbits prefer to feed the green and juicy feed to prevent the female rabbits from hunger strike. The main task of the female rabbit in management during pregnancy is to protect the baby and prevent flow. Special attention should be paid to abortion caused by startle, moldy feed, and poisonous feed (such as cottonseed cake) poisoning; prenatal preparation is the key to management of late pregnancy in females. On the 28th day of gestation, the farrowing box should be cleaned, disinfected and sun dried, and some soft, warm and hygroscopic mat grass should be put into the female rabbit cage to adapt it to the environment. The female rabbit must maintain a quiet environment at the time of childbirth, and it is forbidden to enter and enter the animals. It is also not allowed to send noises. Prepare bran pale salt water, brown sugar water or common well water to the female rabbits in advance. After the mother rabbits are born, they can take out the produce box, change the bedding that was contaminated by bloody amniotic fluid, count the number of puppies and check their health, throw out the stillbirth, and make a record. Then place in the female rabbit cage and let the female rabbit take care of its own puppies. The feeding and management of lactating female rabbits during lactation should pay attention to the following points: first, to ensure a higher protein content of feed, 18% is appropriate; second, the content of sulfur-containing amino acids (methionine + cystine) and lysine Respectively 0.65% and 0.9%; third, vitamin and vitamin feed supplement. Vitamin A and E content per kilogram of feed reach 10,000 units and 40 milligrams or more; fourth, mineral supplementation. Including major minerals calcium, phosphorus and salt and trace elements (iron, copper, zinc, manganese, selenium, cobalt and iodine, etc.); fifth, free access to food and free drinking water; fifth, to provide a comfortable environment. Quiet, clean, dry and warm. To prevent noise, intrusion of animals, proximity of strangers, moving the birth box for no reason, and tossing their puppies; During the lactation of female rabbits, personnel fixation, cage fixation and feeding management procedures should be fixed. During the nursing of the female rabbits, it is not possible to move the birth box, catch the female rabbits, or play the rabbits, and even more, do not scold and fight the female rabbits. Seventh, prevent mastitis. There are three main causes of mastitis: poor hygiene, improper feed transition, and mechanical damage. Should take a comprehensive approach to prevention: the control of concentrates (a small amount of concentrate within 3 days postpartum, feed about 100 grams of good palatability, digestible feed and part of the grass can be, 3 to 5 days gradually increase Concentrate, free intake after 5 days), medication (3 days after delivery, feed 1 tablet per day for each rabbit), and nipple protection (post-partum massage with a sterilized hot towel) Wipe the breasts, then smear each nipple with veterinary iodine, once every other day, 3 times in a row). The reserved rabbits were young rabbits that were reserved for breeding from the age of 3 months to the initial stage. This period is a period of vigorous growth and development. It should use its advantages to satisfy the supply of nutrients such as protein, minerals, and vitamins, especially vitamins A, D, and E, in order to promote the development of their bones and reproductive systems. After 4 months of age, the hoarding capacity of fat is increased. In order to prevent it from being too obese, it is necessary to properly control the energy feed and feed more green feed to promote the development of bones and form a strong constitution; in terms of management, it should be kept in time to prevent early sharing. With. A rabbit cage (back-up male rabbits) and a small herd (back-up female rabbits) were introduced. For rabbits that have not been selected for breeding, they should be sold in time to increase the use of cages. When conditions permit, the reserved rabbit can be properly increased exercise and more sun. The control of weight is the main point of the management of the standby rabbit, so that the weight of the adult rex rabbit can be controlled within 3.5 to 4 kilograms and not more than 4.5 kilograms. With the initial weight, the general production group can reach 70% or more of the adult weight.
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