How to improve pig nutrition
1. Nutrition of sows. The nutrition and related nutrition reserves of sows are important factors affecting the lifelong performance of sows, and their nutrition level should be able to meet the needs of the body during the breeding period after maturity. Starting with a body weight of 45 kg, the dietary level should be 0% higher than the usual diet for growing and finishing pigs. 1% to enhance the bone development of the sow. After entering the reserve sow herd at the age of about 150 days, the growth of the sow should be controlled and its feed should be restricted (2. 3Murray 2. (8 kg / d) A medium-level energy, high-protein diet to reduce body growth and fat deposition.
2. Nutrition of pregnant sows. The nutritional requirements of pregnant sows can be divided into: maintenance + sow self-growth + uterine development. The fetus's nutrient needs in the first 2/3 of pregnancy are very few, so the feed intake adjustment during this period is only based on the body condition of sows and the need for sows to gain weight during this period. In the last 1/3 of pregnancy, the fetal growth rate increased greatly compared with that in the early and middle stages of pregnancy, so it is necessary to increase the feed intake of sows in the late pregnancy to meet the increase in nutrient requirements of fast-growing fetuses during this period. The ideal weight gain of sows during pregnancy is 30m Mel 40kg for parturient sows and 30kg for multiparous sows.
3. To meet the nutrient needs of lactating sows. The nutrient requirements of lactating sows vary with individuals. Affected by parity, birth weight, litter size, lactation period and weaning weight, the energy requirements of lactating sows can be calculated according to the following formula: total energy demand = maintenance + production (lactation). The weight loss of sows should be controlled within 10 kilograms. If the weight loss is more than 15 kilograms, the time interval for mating will be prolonged and future litter size will be affected.
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Traditional Chinese medicine therapy for ten knotty diseases in chickens
In production practice, we often encounter such a situation, that is, all the "good drugs" have been used up in the treatment of some infectious diseases, but the effect is still not obvious. On the contrary, the use of low-cost traditional Chinese medicine has achieved unexpected good results, these facts show that traditional Chinese medicine has its unique effect in the treatment of difficult diseases in chickens, which is introduced below for backup. 1 chicken pulsatilla pulsatilla, purslane, horse tail, chestnut 15% each; Phellodendron chinense, realgar, talcum, patchouli 10% each. Usage: in the proportion of 3%
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The Ministry of Agriculture announced the criteria for determining sick pigs
Recently, the Veterinary Bureau of the Ministry of Agriculture and the China Veterinary Drug Control Institute jointly compiled the Manual for Safe Use of Inactivated Vaccine for Highly Pathogenic Porcine Blue Ear Disease, published the quality standards for inactivated vaccine for porcine reproductive and respiratory syndrome, and published the criteria for determining the infected pigs. According to the manual, the criteria for judging the sick pig are: temperature above 41℃ for at least 3 days; respiratory symptoms such as decreased mental appetite, conjunctivitis, cough and asthma; gross autopsy, flaky consolidation of lung apex or heart lobe. The above three conditions apply, namely
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