1, make full use of heterosis.
Hybrid pigs obtained from crossbreeding of different breeds have stronger viability than purebred parents. In the process of growth and finishing, they have good feeding, fast growth, strong disease resistance and short fattening cycle. A large number of tests have confirmed that using binary crossbred pigs can increase daily weight gain by 15%-20% compared to purebred pigs.
Three-way hybrid pigs increased about 25% compared with purebred pigs. At present, domestically used Changbai and Yorkshire hybrid sows, and then mated with Duroc, Pietrain or Hampshire boars to obtain the best three-way hybrid combination.
2, as early as iron.
When piglets are born, they rely on breast milk and need 7 milligrams of iron per day. Piglets only receive 1 milligram of iron from breast milk. During the growth and development of piglets, iron deficiency anaemia often affects the growth rate. Therefore, early iron supplementation must be performed. Normal piglet 2-3 days of intramuscular injection of 1 ml of "ferritin", its effect is better.
3. To increase the birth weight and weaning weight of piglets.
The piglets were born with a significant number of births, which indicated that the piglets had good growth and development in the fetus. During the subsequent growth process, the pigs were robust, had less illness, were well-fed, had quick weight gain, and were severely weaned. According to tests, pigs with severe weaning weights have been reduced to a fattening period of 1-2 months compared with weaned piglets under the same feeding and management conditions.
4, to provide a suitable temperature and humidity environment.
The piggery needs to control the temperature and humidity, and the temperature and humidity are too high, which will lead to a decrease in the feed intake of the pig, a decrease in the daily weight gain, and it is difficult to prevent the heatstroke from cooling. When the temperature is too low, the heat energy is consumed, the feed intake is high, and the feed is paid. low. Therefore, the suitable temperature range of the pig house should be controlled at 20-30°C for piglets, 15-20°C for pigs, and humidity should be controlled at 50%-55%.
5, provide adequate clean drinking water.
Water is an important material for pig growth and development. The amount of water consumed by pigs varies according to body weight, feed, and weather conditions. Generally, the body weight is large. The more dry the feed is, the higher the temperature is and the more water is consumed. The drinking water supplied must be sufficient and clean.
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