养猪技能(国外英文资料).docVIP

养猪技巧 Table 2: the content of several nutrients in wheat, corn, rice flour and wheat bran Wheat corn flour bran Metabolic energy (kcal/kg) 3040 3220 2990 1630 The crude protein (%) 12.1, 8.0, 13.6, 14.1 Lysine (%) 0.30 0.24 0.52 0.57 Methionine (%) 0.25 0.16 0.16 0.13 Egg + cysteine (%) 0.49 0.34 0.48 0.39 Suine (%) 0.33 0.30 0.50 0.43 Total phosphorus (%) 0.41 0.27 0.52 0.92 Effective phosphorus (%) 0.13 0.12.0.21 0.36 Make full use of the advantage of hybridization. Using binary hybrid pigs, the increase of 15 to 20 percent was increased by the daily increase of the purebred pig, and the three-yuan hybrid was about 25 percent higher than the pure type pig. Catch iron early. When a piglet is born, it takes seven milligrams of iron a day, and only one milligram of iron is available from breast milk. The effect is better if the pig muscle is 1 ml. Improve the newborn and weaning weight. The larger the newborn pig, the better to raise, gain weight, and weaning weight. According to the experiment, the weight of the fattening pig, in the same condition, was shorter than the weaning weight, shortening the period 1-2 months. Provide suitable temperature and humidity. The temperature and humidity of the pig is too high, which can cause the pig to eat less and lose weight. The temperature is too low, the heat energy consumption is large, the food quantity is much, the feed pay is low. Pigpen temperature should be controlled in the pig 20-30 ℃, into pigs 15-20 ℃, humidity is 50-55%. Provide adequate clean water. In order to ensure that the fertile pigs have high metabolic capacity. The feeding of the feed is four changes. That is, the amount of feeding time, the feeding time, the amount of feeding, the standard of feeding, the wet mix feed the pig with dry powder. Pig day feed 5-6 times, medium pig 4-5 times, big pig 3 times. Feeding time is relatively fixed daily. Feed the feed and keep it balanced every time. Reasonable breeding density. It is advisable to use each meat pi