After fattening the sheep, it can significantly increase the production of lamb meat. It can usually increase the weight of the sheep's cockroach by 25% to 30% and improve the carcass quality. Specific breeding techniques are as follows:
one. Preparation and basic requirements before fattening Sheep fattening is generally divided into lamb fattening and adult sheep fattening. Feeding standards and fattening rations should be based on local sampling, use roughage as much as possible to meet the energy needs of the ration, the lack of appropriate adjustments to make up the fine material. The protein portion of the diet should also first consider the cake-based plant-based high-protein feed to reduce feed costs. In order to finish the fattening in the whole period, it is not easy to change the feed. In the diets mainly including grain feed, cotton and rapeseed cake, the calcium content can be increased by 0.5% to prevent urinary stones. The length of a large sheep's feeding trough should be 40 to 50 cm, and lambs 25 to 30 cm in age should be born. Pay attention to drinking water hygiene, summer sun protection, winter frost protection, must ensure that there is enough clean drinking water, constantly salt. The sheep's house is dry on the ground and has good ventilation. The sheep only has a resting area, when the lamb was 0.8 to 1 square meters, and the big sheep was 1.1 to 1.5 square meters. It is necessary to do a good job of the sterilization of the fattening pens and the deworming work before the sheep enters the circle, and to inject the quadruple seedlings to prevent intestinal toxaemia; if it is wool sheep, shearing before fattening is beneficial to weight gain, and the old ewe make it Pregnancy is also conducive to gaining weight. When lambs and mature sheep are fattened in the same year, regardless of whether it is used for fattening or general fattening, there is a pre-feeding transition period. The pre-feeding period is generally 10 to 15 days. If the lambs are fed 1 to 3 days of hay, the lamb is adapted to the new environment. After this, it is still dominated by hay, but diets are added step by step, all feeds are fed on the 7th day, and on the 10th or 15th day, adult sheep can be pre-fed for 10 days. Do not feed on wet, mildew, spoilage feeds, and avoid overcrowding and contention during feeding.
two. Lamb fattening and breeding techniques Lamb fattening Lambs usually slaughtered at 6 to 8 months old can obtain 16 to 20 kilograms of carcasses, which have a high lean percentage, a high feed remuneration, generally 3 to 4 to 1 and adult sheep 6 to 8 1:1.
130 kg of lambs with good body weight and good nutrition are fattened. The planned daily weight gain is 280 grams per day. The reference diet is 0.27 kg of wild hay and alfalfa hay (1:5 ratio) and corn (2459, -2.00, -0.08). %) 1 kg, 0.26 kg cotton seed cake, 3.8 g limestone.
The 24-month-old weaned lamb had an average live weight of 26 kilograms and a planned daily weight gain of 200 grams. The reference diet was 0.27 kg of hay, 0.4 kg of corn, 0.2 kg of cottonseed cake, 0.22 kg of wheat bran and 3.8 g of limestone.
Third, adult sheep fattening
(1) Summer fattening. In summer, grazing and fattening is the main factor, supplemental concentrates are properly fed, and 5 to 6 kg of green feed and 0.4 to 0.5 kg of concentrate are eaten daily, which is equivalent to 1.6 to 1.9 kg of dry matter and 150 to 170 g of digestible protein. 120 to 140 grams.
(2) Fall fattening. The main source of fattening sheep in autumn is the elimination of aged ewes and thin sheep. Generally, the fattening period is longer, reaching 80 to 100 days. The amount of feed is large, the daily weight gain is low, and the feed conversion rate is not high. There are also ewes that will be eliminated. Transferred into the autumn pasture grazing and into the farmland autumn grazing, and after the improvement of lyrics and then into the circle to feed fattening to reduce the fattening expenditure. There should be a certain amount of succulent feed in the diet for culling ewes. Such as silage corn mixed grains, straw and so on.
(3) feed pellets. It is advisable that sheep fattening be fed to pelleted feedstuffs in conditional areas, and straw feedstuffs should be used as much as possible. The proportion of straw in the fattening diets of the sheep is 60%. Generally, lambs aged 6 to 8 months can gain 9.5 kilograms in 50 days, with an average daily weight gain of 190 grams. The granular feed formulation used was 55% to 60% straw and grass powder, 35% to 40% concentrate, 3% minerals and vitamins, and 1% urea. Feeding pellet feeds is best done with automatic feeders that are fed by fattening sheep and ensure continuous drinking. The daily intake of sheep from 6 to 8 months of age was 1.8 to 2 kg, and that of adult sheep was 2.5 to 2.7 kg. Appropriately feed some hay in the afternoon, each 0.25 kilograms, in order to facilitate rumination, feeding 2 times a day is appropriate.
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