Breeding female rabbits are the basis of the rabbit population. The purpose of breeding good female rabbits is to provide good quality, large numbers of puppies. To make breeding females fully develop their potential for breeding, the farmers must further strengthen their feeding and management of empty-breeding, gravid, and lactating female rabbits according to the requirements for breeding and management of breeding female rabbits in different periods.
1 The period of empty breeding period for the breeding and management of female rabbits refers to the period of time during which the pups are weaned until they are mated again. Empty female rabbits consume a lot of nutrients due to breastfeeding. The female rabbits are lean and weak. In order to restore their physical strength as soon as possible, various nutrients need to be provided at this time to compensate and increase the health level of female rabbits.
1.1 Feeding and raising pregnant female rabbits should be mainly green feed. In the abundance of green grass, female rabbits weighing 3 to 5 kg can feed 600-800 g of green feed each day, and mix concentrates of 20-30 g: In the off season of grass, they can feed 125-175 g of high quality hay, and 100-200 g of succulent feed. , Mix 35 ~ 45g concentrate. Empty female rabbits should maintain the fatness of 70% to 80%, too much fat will affect the female estrus, breeding, should adjust the ratio of protein and sugar in the diet. For overweight female rabbits, the amount of concentrate feed should be increased about 15 days before mating, and the body weight should be quickly restored; for over-fertilized female rabbits, the amount of concentrate feeding should be reduced and the amount of exercise should be increased. In addition to improving feeding and management conditions for females that have not been estrus for a long time, artificial aphrodisiacs may be used.
1.2 The management of air-breathing female rabbits should be done in the air circulation in the rabbit house, rabbit cages and rabbit bodies should be kept clean and sanitary. For rabbits with long-term exposure to less sunlight, they should exchange positions with rabbits with sufficient light to promote the metabolism of the organism. Keep the female rabbit's sexual function normal. Rabbits with an annual output of 4 tires have a period of 10 to 20 days per fetus; those with an annual output of 7 to 8 fetuses have to breed before weaning, which means that they are pregnant during weaning. If the female rabbit's constitution is too thin, it is necessary to extend the period of oblivion appropriately. It is not possible to ignore the health of the female rabbit for the mere pursuit of the number of breeding fetuses, and it also seriously affects the useful life of the breeding female rabbit.
2 Feeding and management of pregnant female rabbits During pregnancy, the nutrients needed by the female rabbit, in addition to maintaining its own nutritional needs, also meet the needs of the embryo, breast development and uterine growth, so it needs to consume a lot of nutrients.
2.1 Feeding and rearing pregnant female rabbits, first of all to supply the full price of nutrients, according to the physiological characteristics of female rabbits and the growth and development of the fetus, must take the correct feeding, measures. Pre-pregnancy (embryo period and pre-fetal period, ie, 1 to 18 days after pregnancy), due to the slow growth rate of maternal organs and fetuses, there are not many nutrient substances required, and the rearing level is slightly higher than that of pregnant female rabbits. Late pregnancy (fetal period, ie 1.9 to 30 days after pregnancy), because the fetus grows fast, many nutrients are needed, feeding levels should be 1 to 1.5 times higher than empty female rabbits. According to measurements, females weighing 3 kg, the total weight of the fetus and placenta during pregnancy can reach more than 650 g, of which dry matter is 16.5%, protein is 10.5%, fat is 4.3%, inorganic salt is 2%. At 21 days of age, the protein content in the fetus was 8.5%, 10.2% at 27 days of gestation, and 12.6% at first birth. This shows that strengthening the feeding of pregnant female rabbits, providing full-price nutrition, has an important role in improving the health of female rabbits and promoting fetal development.
For those who prefer better lyricism, the method of first-time after-behind-pregnancy can be used, that is, the first trimester of pregnancy is dominated by green feed. Each day feeds green and green feed 800-1000g, and the Other can be fed 35-40g of mixed concentrate, bone powder 1.5-2g, salt 1g, by the end of pregnancy, increase the amount of fine feed to meet the needs of the growth and development of the fetus: For the female rabbits with poor lyrics, the daily feeding method should be adopted from the beginning of pregnancy, and 600 to 4-5 green feeds should be given every day. 800g, should also be fed with 50 ~ 70g of mixed concentrate, bone powder 2 ~ 2.5g, salt 1g, in order to quickly restore body lice, to meet the needs of the female rabbit itself and the growth of the fetus.
The nutrients needed for pregnant female rabbits are most important with proteins, inorganic salts and vitamins. Proteins are the constituents of the fetus and calcium and phosphorus are essential nutrients for fetal bone growth. If the protein content in the feed is insufficient, it will cause the increase of stillbirth in the pups, decrease of the birth weight, and reduction of viability. Insufficient inorganic salt will make the pups thin and weak, and the mortality rate will increase; vitamin deficiency will lead to deformity, stillbirth and miscarriage.
2.2 The management of pregnant female rabbits is mainly to strengthen nursing and prevent miscarriage. Female abortion usually occurs within 15 to 25 days after pregnancy. The causes of miscarriage can be divided into nutritional, mechanical and diseased. Nutritional abortion is often caused by incomplete nutrition, sudden changes in feed, or due to moldy degeneration, frozen feed, etc.; mechanical abortion due to catching, scaring, squeezing, improperly touching the tire method, etc.: disease caused by multiple abortions Bacterial disease, salmonellosis, Treponema pallidum and other reproductive organ diseases. In order to prevent the occurrence of abortion, the female rabbit must take a rabbit cage after pregnancy to prevent extrusion; do not catch it for no reason, touch the tire movements should be light; feed should be clean, fresh, do not arbitrarily change; found diseased female rabbit should identify the reasons To achieve timely treatment.
Management of pregnant female rabbits, but also need to prepare for the maternity period. Generally, the litter box should be prepared 3 to 4 days before childbirth. After washing and disinfecting, a layer of dried and knocked hay is laid on the bottom of the box and put into the cage 1 to 2 days before the childbirth to provide nesting for the female rabbits. The delivery room should be staffed with special personnel, winter indoor cold and warm, summer heatstroke mosquito.
3 The feeding and management of lactating female rabbits is the most burdensome period during lactation. The quality of feeding and management has a great influence on the health and growth of the female rabbits and puppies.
3.1 Feeding female rabbits can produce 60-150g of milk per day during lactation, and high-yielding female rabbits can reach 200-300g. In addition to lower lactose content, rabbit's milk has a protein content of 13% to 15% (3.4 times higher than milk), fat content of 12% to 13% (3 times higher than milk), inorganic salt content of 2.0% to 2.2% (2.7 times higher than milk). Therefore, nursing mother rabbits need to consume a large amount of nutrients in order to ensure their own nutritional needs and to secrete enough milk. Feeding levels should be higher than empty female rabbits and pregnant female rabbits, in particular to ensure adequate protein, inorganic salts and vitamins. Summer and autumn feeds can be mainly green feed. Every day, rabbits can feed 1000 ~ 1500g of green feed and 50 ~ 100g of mixed feed: during the winter and spring season, 150 ~ 300g of high quality hay can be fed per day. Green, juicy feed 200 ~ 300g, mix concentrate 50 ~ 100g. If the fed feed cannot meet the nutritional needs of the nursing mother rabbit, a large amount of nutrients stored in the body will be used, thereby reducing the weight of the female rabbit, impairing the health of the female rabbit and affecting the amount of lactation.
The quality of feeding and nursing female rabbits can generally be identified based on the growth and feces of the pups. If the female rabbit is exuberantly bred, the rabbits will have a full round abdomen, a ruddy complexion, and a restful sleep. If the female rabbit has insufficient lactation, the abdomen is empty, the skin color is dull, and the chaos is chaotic. Cry. In addition, if the litter box is clean and dry, there is very little urinary excretion in the rabbits. This indicates that the nursing is normal and the feeding is very good: If too much urine accumulates in the farrowing box, the water content in the female rabbit's feed is too high. If the dung is too dry, it means that the female rabbit has insufficient drinking water; if it feeds moldy, deteriorating feed, it will cause indigestion and even diarrhoea in the pups.
At present, some rabbit breeding farms use mother rabbits and puppies separately to feed them. The method of regular breastfeeding is to remove the puppies from the female rabbit cages, place them in appropriate places, and return the puppies to the female rabbit's cage during feeding. In the early morning and evening, they can be breast-fed once a day for 10 to 15 minutes. After 20 days of age, they can be breast-fed once a day. The advantage of adopting this breeding method is to understand the nursing condition of the female rabbit and adjust the feeding level in time.
3.2 Management The management of lactating female rabbits is to prevent mastitis. There are many causes of mastitis in lactating female rabbits. There are too much lactation in the female rabbits, too few pups, excessive milk production, insufficient lactation in the female rabbits, too much pups, causing biting of nipples due to eating. Therefore, targeted prevention and control should be carried out in a timely manner. For those who have too much lactation and have fewer litters, the fostering method can be adopted: For female rabbits with insufficient milk, soy beans, rice soup or brown sugar water can be added, and lactation tablets can also be fed. The second is to do a good job in cages and homes, and keep the rabbit houses and rabbit cages clean and dry. The third is to do summer heatstroke prevention and winter warmth work.
1 The period of empty breeding period for the breeding and management of female rabbits refers to the period of time during which the pups are weaned until they are mated again. Empty female rabbits consume a lot of nutrients due to breastfeeding. The female rabbits are lean and weak. In order to restore their physical strength as soon as possible, various nutrients need to be provided at this time to compensate and increase the health level of female rabbits.
1.1 Feeding and raising pregnant female rabbits should be mainly green feed. In the abundance of green grass, female rabbits weighing 3 to 5 kg can feed 600-800 g of green feed each day, and mix concentrates of 20-30 g: In the off season of grass, they can feed 125-175 g of high quality hay, and 100-200 g of succulent feed. , Mix 35 ~ 45g concentrate. Empty female rabbits should maintain the fatness of 70% to 80%, too much fat will affect the female estrus, breeding, should adjust the ratio of protein and sugar in the diet. For overweight female rabbits, the amount of concentrate feed should be increased about 15 days before mating, and the body weight should be quickly restored; for over-fertilized female rabbits, the amount of concentrate feeding should be reduced and the amount of exercise should be increased. In addition to improving feeding and management conditions for females that have not been estrus for a long time, artificial aphrodisiacs may be used.
1.2 The management of air-breathing female rabbits should be done in the air circulation in the rabbit house, rabbit cages and rabbit bodies should be kept clean and sanitary. For rabbits with long-term exposure to less sunlight, they should exchange positions with rabbits with sufficient light to promote the metabolism of the organism. Keep the female rabbit's sexual function normal. Rabbits with an annual output of 4 tires have a period of 10 to 20 days per fetus; those with an annual output of 7 to 8 fetuses have to breed before weaning, which means that they are pregnant during weaning. If the female rabbit's constitution is too thin, it is necessary to extend the period of oblivion appropriately. It is not possible to ignore the health of the female rabbit for the mere pursuit of the number of breeding fetuses, and it also seriously affects the useful life of the breeding female rabbit.
2 Feeding and management of pregnant female rabbits During pregnancy, the nutrients needed by the female rabbit, in addition to maintaining its own nutritional needs, also meet the needs of the embryo, breast development and uterine growth, so it needs to consume a lot of nutrients.
2.1 Feeding and rearing pregnant female rabbits, first of all to supply the full price of nutrients, according to the physiological characteristics of female rabbits and the growth and development of the fetus, must take the correct feeding, measures. Pre-pregnancy (embryo period and pre-fetal period, ie, 1 to 18 days after pregnancy), due to the slow growth rate of maternal organs and fetuses, there are not many nutrient substances required, and the rearing level is slightly higher than that of pregnant female rabbits. Late pregnancy (fetal period, ie 1.9 to 30 days after pregnancy), because the fetus grows fast, many nutrients are needed, feeding levels should be 1 to 1.5 times higher than empty female rabbits. According to measurements, females weighing 3 kg, the total weight of the fetus and placenta during pregnancy can reach more than 650 g, of which dry matter is 16.5%, protein is 10.5%, fat is 4.3%, inorganic salt is 2%. At 21 days of age, the protein content in the fetus was 8.5%, 10.2% at 27 days of gestation, and 12.6% at first birth. This shows that strengthening the feeding of pregnant female rabbits, providing full-price nutrition, has an important role in improving the health of female rabbits and promoting fetal development.
For those who prefer better lyricism, the method of first-time after-behind-pregnancy can be used, that is, the first trimester of pregnancy is dominated by green feed. Each day feeds green and green feed 800-1000g, and the Other can be fed 35-40g of mixed concentrate, bone powder 1.5-2g, salt 1g, by the end of pregnancy, increase the amount of fine feed to meet the needs of the growth and development of the fetus: For the female rabbits with poor lyrics, the daily feeding method should be adopted from the beginning of pregnancy, and 600 to 4-5 green feeds should be given every day. 800g, should also be fed with 50 ~ 70g of mixed concentrate, bone powder 2 ~ 2.5g, salt 1g, in order to quickly restore body lice, to meet the needs of the female rabbit itself and the growth of the fetus.
The nutrients needed for pregnant female rabbits are most important with proteins, inorganic salts and vitamins. Proteins are the constituents of the fetus and calcium and phosphorus are essential nutrients for fetal bone growth. If the protein content in the feed is insufficient, it will cause the increase of stillbirth in the pups, decrease of the birth weight, and reduction of viability. Insufficient inorganic salt will make the pups thin and weak, and the mortality rate will increase; vitamin deficiency will lead to deformity, stillbirth and miscarriage.
2.2 The management of pregnant female rabbits is mainly to strengthen nursing and prevent miscarriage. Female abortion usually occurs within 15 to 25 days after pregnancy. The causes of miscarriage can be divided into nutritional, mechanical and diseased. Nutritional abortion is often caused by incomplete nutrition, sudden changes in feed, or due to moldy degeneration, frozen feed, etc.; mechanical abortion due to catching, scaring, squeezing, improperly touching the tire method, etc.: disease caused by multiple abortions Bacterial disease, salmonellosis, Treponema pallidum and other reproductive organ diseases. In order to prevent the occurrence of abortion, the female rabbit must take a rabbit cage after pregnancy to prevent extrusion; do not catch it for no reason, touch the tire movements should be light; feed should be clean, fresh, do not arbitrarily change; found diseased female rabbit should identify the reasons To achieve timely treatment.
Management of pregnant female rabbits, but also need to prepare for the maternity period. Generally, the litter box should be prepared 3 to 4 days before childbirth. After washing and disinfecting, a layer of dried and knocked hay is laid on the bottom of the box and put into the cage 1 to 2 days before the childbirth to provide nesting for the female rabbits. The delivery room should be staffed with special personnel, winter indoor cold and warm, summer heatstroke mosquito.
3 The feeding and management of lactating female rabbits is the most burdensome period during lactation. The quality of feeding and management has a great influence on the health and growth of the female rabbits and puppies.
3.1 Feeding female rabbits can produce 60-150g of milk per day during lactation, and high-yielding female rabbits can reach 200-300g. In addition to lower lactose content, rabbit's milk has a protein content of 13% to 15% (3.4 times higher than milk), fat content of 12% to 13% (3 times higher than milk), inorganic salt content of 2.0% to 2.2% (2.7 times higher than milk). Therefore, nursing mother rabbits need to consume a large amount of nutrients in order to ensure their own nutritional needs and to secrete enough milk. Feeding levels should be higher than empty female rabbits and pregnant female rabbits, in particular to ensure adequate protein, inorganic salts and vitamins. Summer and autumn feeds can be mainly green feed. Every day, rabbits can feed 1000 ~ 1500g of green feed and 50 ~ 100g of mixed feed: during the winter and spring season, 150 ~ 300g of high quality hay can be fed per day. Green, juicy feed 200 ~ 300g, mix concentrate 50 ~ 100g. If the fed feed cannot meet the nutritional needs of the nursing mother rabbit, a large amount of nutrients stored in the body will be used, thereby reducing the weight of the female rabbit, impairing the health of the female rabbit and affecting the amount of lactation.
The quality of feeding and nursing female rabbits can generally be identified based on the growth and feces of the pups. If the female rabbit is exuberantly bred, the rabbits will have a full round abdomen, a ruddy complexion, and a restful sleep. If the female rabbit has insufficient lactation, the abdomen is empty, the skin color is dull, and the chaos is chaotic. Cry. In addition, if the litter box is clean and dry, there is very little urinary excretion in the rabbits. This indicates that the nursing is normal and the feeding is very good: If too much urine accumulates in the farrowing box, the water content in the female rabbit's feed is too high. If the dung is too dry, it means that the female rabbit has insufficient drinking water; if it feeds moldy, deteriorating feed, it will cause indigestion and even diarrhoea in the pups.
At present, some rabbit breeding farms use mother rabbits and puppies separately to feed them. The method of regular breastfeeding is to remove the puppies from the female rabbit cages, place them in appropriate places, and return the puppies to the female rabbit's cage during feeding. In the early morning and evening, they can be breast-fed once a day for 10 to 15 minutes. After 20 days of age, they can be breast-fed once a day. The advantage of adopting this breeding method is to understand the nursing condition of the female rabbit and adjust the feeding level in time.
3.2 Management The management of lactating female rabbits is to prevent mastitis. There are many causes of mastitis in lactating female rabbits. There are too much lactation in the female rabbits, too few pups, excessive milk production, insufficient lactation in the female rabbits, too much pups, causing biting of nipples due to eating. Therefore, targeted prevention and control should be carried out in a timely manner. For those who have too much lactation and have fewer litters, the fostering method can be adopted: For female rabbits with insufficient milk, soy beans, rice soup or brown sugar water can be added, and lactation tablets can also be fed. The second is to do a good job in cages and homes, and keep the rabbit houses and rabbit cages clean and dry. The third is to do summer heatstroke prevention and winter warmth work.
Indented cylinder separator is used for length grading of all granular materials, such as wheat, oat, maize, rice, fine seeds, lentils, sticks from sunflower or sugar beet, plastic particles, etc., as well as for the extraction of unwanted short or long admixtures.
Through the inlet housing, the granular material to be graded flows into the interior of the rotating cylinder, whose cover is equipped with special deep-drawn teardrop or spherical-shaped pockets for the most precise length separation. The rotating speed, rotating direction and the size of the dimple will be decided by size and impurities in different processing materials.
ADVANTAGES
Wide application
Changeable cylinders meet different materials
Easy operation and maintenance
Connection combination available
Indented Cylinder
Indented Cylinder,Rice Paddy Grader,Seed Length Grader,Rice Grading Machine
SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , https://www.seedgraincleaner.com