Prevention measures of chicken plague
1. Take one end of garlic, mash it, put it into 0.5 kg feed and mix evenly. A chicken is fed 50 grams a day, 10 days as a course of treatment, and then fed after 3 days.
two。 The garlic was soaked in wine for 24 hours, and a chicken was fed 1 / 2 cloves a day for 8 / 10 days.
3. Soak the rice in 2% salt water for 3 days, then fish it out and feed the chickens for more than 7 days.
4. Add a small amount of alum and ginger to the feed and feed it every 10 days; if you get sick, feed the chickens every 7-8 days.
5. Soak mung beans in pig bitter gall for 7 days and feed 3 mung beans to a chicken.
6. Mash the cactus like mud and feed it twice a day for 2 or 3 days.
7. The chicken coop is connected to the rabbit house, the upper floor @ # @ 248 chicken house, and the lower layer @ # @ 230 chicken house to avoid chicken plague.
8. Feeding chickens with rabbit feces and urine can improve the disease resistance of chickens.
9. Feed the chickens with urine chancre in the urinal, twice a day for 3 days.
10. Chicken plague can be prevented by spraying chicken body and chicken house with 1% Lysu water.
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Feed formula for pigs during lactation
Sows need a lot of nutrients to satisfy lactation during lactation. During the peak period of lactation, the lactation ability of sows was higher than that of feed intake and less than that of nutrients excluded from milk, and the body condition of sows decreased rapidly. Feeding lactating sows with high quality and high nutrient concentration feed is the best way to solve this contradiction. Feed formula 1: lactation feed formula 1 in Table 4-3 avoids the use of large solvent feed such as alfalfa, bran, etc. In the formula design of lactation feed, the unknown factor of nutrition is not very important, and this formula uses high energy as far as possible.
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Breeding of introduced Pig breeds and Application of New breeding techniques
The continuous development and progress of science and technology make it possible for people to explore the laws of nature and reveal biodiversity. The greatest progress of pig breeding in the 20th century is that the daily gain of pigs exceeded 800g / day, the lean meat rate reached more than 60%, the ratio of feed to meat reached 2.8g / ∶ 1, and the body weight of pigs reached more than 90kg in 156days. In recent years, with the continuous development of breeding theory and practice, pig breeding in developed countries has gradually changed from breed selection to specialized breeding.
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