The pupa littering period is from the calving of the mother to the weaning of the Aberdeen. The time is generally 4550 days, ie from the beginning of May to the end of June. The central task of feeding and management during farrowing and lactation is to ensure the survival rate and growth of D. sinensis. If improper feeding and management is performed during this period, the mother’s milk secretion will be reduced, malnutrition will occur, and the growth will be slow. This will cause serious deaths of Aberdeen. Therefore, it must be scientifically reared and carefully managed.
First, feeding and lactating
1. Nutritional characteristics of litter and lactating
Nutrient characteristics during lactation is to promote efficient and sustained lactation of mother lice through nutrition regulation. The key to making the mother's milk secrete is to ensure the supply of various nutrients needed for lactation. When malnutrition occurs during breastfeeding, the amount of lactation is reduced, the duration of lactation is short, and there is no milk in severe cases. Experiments have shown that milk contains a lot of milk fat and lactose. For example, leeches can secrete more than 1 kilogram of milk per head during the entire lactation period. Their milk contains 8% of fat, so that a total of 80 grams of milk fat is formed in the breast. According to data, during the lactation period, with the growth and development of the fetus, the synthesis of female lactose lactose increased, and the production of lactose and other sugars in the milk of 8 young females that feed every day would be at least 9 grams. Therefore, breastfeeding diets must provide enough fat and carbohydrates to meet the needs of the mother's lactation.
2. Preparation of lactating diets
The level of dietary nutrients in the pupa during lactation should be maintained at the level of gestation. The type of animal feed should not be changed too much, and animal feeds containing large amounts of fat, such as broiler intestines and duck racks, should be increased. Increase cornmeal to meet the needs of leeches for fats and carbohydrates. During this period, the total daily diet should reach 300,500 grams, with a protein content of 2030 grams, 78 grams of fat, and 2022 grams of carbohydrates. According to calculations, animal feeds such as fish, meat, liver, eggs, and milk in the diet will reach 110,120 grams per day, and cornmeal will have 30 grams per day to achieve the above nutritional levels. In addition, each day should also be fed cod liver oil 8001000 international units, yeast 58 grams, bone meal 1 gram, salt 0.7 grams, vitamin C2030 mg. Conventional feeding is generally fed 2 times a day, preferably 3 times.
3. Typical examples
A small-scale breeding farm with 220 species of females is managed during the lactation period by changing the gestational diet to the lactation diet immediately after the farrowing is completed. The result is that the rearing rate of the young larvae is greatly increased until the winter larvae. There is basically no death.
(1) Pregnancy diet formula: 7 kg of frozen sea fish, 7 kg of chicken liver, 4 kg of layer chicken, 2 kg of chicken, 3 kg of chicken heart, 1.5 kg of egg, 1.5 kg of yeast powder, and 3.5 kg of corn flour. In addition, add 100 grams of salt, vitamin B1, vitamin B2, vitamin E, vitamin AD. The contents of various nutrients were 793.12 kJ, 19.2 g of protein, 7.1 g of fat, and 12.4 g of carbohydrates.
(2) Diet formula for lactation: 7 kg of frozen sea fish, 7 kg of chicken liver, 4 kg of broiler sausage, 2 kg of chicken, 3 kg of chicken heart, 1.5 kg of egg, 1.5 kg of yeast powder, and 6.6 kg of corn flour. In addition, add 100 grams of salt, vitamin B1, vitamin B2, vitamin E, vitamin AD. The various nutrient content metabolizable energy 1007.12 kJ, protein 20.46 g, fat 7.7 g, carbohydrate 22.5 g.
Second, the management of lactating period
1. Carry out birth check in a timely manner to strengthen the care of children. Day and night on duty, on-duty personnel inspected once every 2 hours, found that the mother's cockroach was born, for abandoned babies and obese mothers to be rescued in time, and add water at any time. But you must keep quiet on the court.
2. Keep the environment quiet. During the farrowing period, mothers and mothers are very happy and afraid to disturb. Otherwise, they will abandon their bereavements or bite or even eat Aberdeen. Therefore, we must keep the environment quiet. Keeping the action of the staff is light, and it is forbidden to take the flashlight in disorder at night.
3. Strict hygiene and epidemic prevention, and good health management. The litter size, excrement, etc. during the farrowing period make the environment very poor, and the weather is very hot. The feed is also susceptible to deterioration. It is necessary to clean up in time to maintain the hygiene of feedstuffs and cages, and clean up the tableware every day, which is conducive to the growth and development of Aberdeen.
4. Split the nest in time. Aberdeen started feeding after 20 days of age but still lactation. After 45 days of age, Aberdeen and mother-in-law competed for food and space and thus separated their mothers. Normal weaning should be weaned immediately after 4560 days of age. When splitting the nest, the mother can be separated once and then placed in a cage. After 24 weeks, separate them one by one. It is also possible to divide the well-developed young larvae into groups and feed them in groups. After the growth and development are slow and the mother quail is reared for a period of time, it is divided into nests for rearing. Do a good job of pedigree registration after separating the nest.
Traditional Wound Care Products
Traditional Wound Care Products,Disposible Gauze Swabs,Disposible Bandages,100% Cotton Bandages
Zhende Medical Co.,Ltd , https://www.zhendemedicals.com