First, nutritional benefits
If the sheep are full on a daily basis and nutrition is sufficient, they will have fewer diseases and grow faster. The lambs produced at the end of the year can reach 1.2 times the weight of the average adult sheep at the end of the year. Sheep breed with high fertility, high lamb production, high survival rate of lambs, and good fur quality with wool type. However, the way of raising sheep in China is basically grazing. When the grass is lush in spring, summer and early autumn, the sheep can only eat enough, and some can only eat 80% of the full. In late autumn, winter and early spring, the sheep can only eat half full, especially in the cold season, the sheep can only eat a small amount of hay, to maintain life is not enough, simply can not grow. This type of grazing, which is not fed to forages alone, is a serious lack of nutrients. It is often diseased and it takes a year and a half for meat to be slaughtered. It is poorly weighed, the body weight does not meet the required standard, and the slaughter rate ( The percentage of saleable meat in body weight is less than 50. For wool-producing type, the quality of the coat is poor, the breeding ability for breeding is low, the number of lambs produced is small, and the survival rate is low.
Second, digestion
The digestive tract of the sheep is 30-35 times the length of the body and can digest and assimilate the roughage well. In particular, the rumen of the sheep accounts for two-thirds of the stomach. It contains a large amount of microorganisms, which can decompose the 70-95 cellulose in the feed into organic acids, which can decompose and synthesize proteins in the forage into bacterial proteins. Synthesize various amino acids and B vitamins. The cecum and colon of the sheep also digest about 19% of dry matter in feed. The sheep is a ruminant herbivore. During the day, the grass is only chewed and swallowed into the stomach. At night, it is slowly chewed in the mouth. Therefore, when the sheep is late into the pen, even if it looks bigger, it is not full, if the belly is not enough, the night will go hungry, and there will not be enough ruminant in the stomach.
Third, add night food as appropriate
1, in order to prevent sheep from eating enough, at night can be an appropriate amount of nutrient-rich supplements, good palatability good material, such as corn, etc., in order to promote growth. 20 days before ewe mating, 0.1 kg of fine material should be blended into the forage of each sheep each night, and 0.2-0.3 kg should be mixed during the middle of pregnancy; 0.4 kg can be added later in pregnancy. In the early stage of lactation, about 0.5 kg was added, 0.7 kg of twins were mixed, and the middle period of lactation was reduced, and supplementation of the concentrate could be stopped during the late period of lactation. The rams are active during the day's grazing to catch up with the ewes. Therefore, they generally do not eat enough, especially during the mating season, they often do not eat half full, and they should feed enough quality green material every night for artificial collection. Rams should mix 2-3 eggs or duck eggs every night in forage grass.
2, fed a good palatability of green grass material, the number of the next day to eat the next morning not to see the leftover grass is appropriate.
3. Salt is an essential nutrient for sheep. It is not possible to satisfy the needs of sheep by grazing alone. When feeding nightgrass to sheep, sprinkle salt in the grass, or sprinkle salt in the sink. 6 grams is appropriate and the lamb is reduced. Salt bricks with added trace elements and minerals can be used to hang sheep in the sheep house for free foraging, which saves time and effort.
4. In the cold season, if there is not enough grass, it should be mixed with about 0.5 kilograms of concentrate and appropriate amount of vegetables when feeding hay. One to two months before the slaughter of meat sheep, it is necessary to add concentrate in the feed, each about 1 kg per night.
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