Where is the small tail cold sheep suitable for raising?

Small-tailed Han sheep is a sheep breed used both for meat and fur in China, which has the characteristics of rapid growth, early maturity, strong fecundity, genetic stability and strong adaptability, and has been designated as a good breed of famous livestock by the country. it is not only one of the best projects for farmers to shake off poverty and become well-off, but also the safest project for the government to help the poor. Let's take a look at where small-tailed Han sheep are suitable for raising.

Where is it suitable to raise small-tailed Han sheep?

Although small-tailed Han sheep are Mongolian sheep, they have developed the habit of "house-feeding and captivity" for thousands of years in southwestern Shandong, so the natural conditions such as sun, rain and cold can be adjusted by enclosure and are rarely affected by regional climatic factors. It can be raised all over the country, as far as Heilongjiang and Inner Mongolia in the north, Guizhou and Yunnan in the south, and can grow, develop and reproduce normally. Breeding is successful in all areas that do not violate the special living habits of small tail cold.

Environmental conditions of small-tailed Han sheep culture

Small-tailed Han sheep are produced in southern Hebei, eastern and northeastern Henan, southern Shandong and northern Anhui and northern Jiangsu. They are mainly distributed in Cao County, Wenshang, Liangshan and other counties of Shandong Province and some areas of northern Jiangsu, northern Anhui and Henan. The producing area has low topography, fertile soil and mild climate. The annual average temperature is 13: 15 ℃, January is-14: 0 ℃, July is 24: 29 ℃, annual precipitation is 500: 900 mm, frost-free period is 160-240 days. The main producing area is one of the main producing areas of wheat, miscellaneous grains and cash crops in China, the crops can be cropped twice a year or three crops in two years, rich in agricultural and sideline products, and provide a lot of forage for raising sheep.

Feeding and management techniques of small-tailed Han sheep

1. Castration in time: lambs used for fattening should generally be castrated within 1-3 weeks, when castration is beneficial to improve meat quality, make meat tender, reduce meat flavor, and make sheep docile, easy to manage, and easy to fatten.

2. Early weaning: the traditional weaning time of small tail Han sheep is 3 ~ 4 months old. According to the experiment, the average body weight and daily gain of 60-day-old and 90-day-old weaned lambs were similar to those of 6-month-old lambs under the same conditions, but the difference was not significant. This shows that early 2-month-old weaning is feasible. Weaning and fattening at the age of 2 months is beneficial to the advance breeding of ewes, which increases the breeding sheep from 3 births in 2 years to 2 births a year, thus improving the reproduction rate, fattening rate and meat yield of small tail Han sheep.

3. Timing deworming: fattening lambs are dewormed once after weaning and at the beginning of autumn. the commonly used insect repellents are nitrochlorophenol, thiobichlorophenol, albendazole and so on. 4 mg, 35 mg 75 mg and 2.5 mg per kilogram body weight were taken orally.

4. Fine house feeding: the traditional extensive feeding method is house feeding fine surprise fattening mode, and the reasonable collocation of coarse and refined feed can make the lambs out of the fence for about half a year, which can significantly improve the economic benefit. Specifically, the formula feed of 35% hay, 37% corn straw meal, 5% bean cake, 4% cotton cake and 14% corn can be used to fatten weaned lambs at the age of 5-6 months, the live weight can reach more than 40 kg, and the average daily gain is more than 200 grams.

5. Feed additives

① feeding sheep fattening compound feed: this additive is composed of trace elements iron, copper, manganese, zinc, selenium, rumen metabolic regulators, growth promoters and harmful microbial inhibitors, and is suitable for fattening Capricorn lambs and eliminated old sheep in that year. The weight gain rate and feed conversion rate increased by 23.1% and 18.7% respectively.

② supplemented with ruminin: the function is to control and improve the rumen fermentation efficiency, in order to improve the weight gain rate and feed conversion rate. The results showed that the daily gain and feed conversion rate of small tail Han sheep fed with ruminin were about 35% and 27% higher than those of the control group. Small-tailed Han sheep were fed with 25 mg / kg diet supplemented with ruminin. In practical application, the appropriate amount should be determined according to the composition of the diet, should be evenly mixed in the feed, the initial amount can be lower, and then gradually increase.

③ added urea phosphate: the function is to supplement nitrogen and phosphorus for ruminants, which is a new type of non-protein nitrogen feed additive. About 10 grams of urea phosphate is added to each sheep every day, and the average daily gain is increased by 26.7%.

④ is fed with bacitracin zinc bacteriostatic and growth promoting agent: it acts on animals and is beneficial to the digestion and absorption of nutrients in the intestines, improve the utilization rate of feed and increase body weight. The lamb was added 10 mg / kg mixture and fed evenly in the feed.

6. timely slaughtering: the growth intensity of small-tailed Han sheep is high in the early stage and slows down in the later stage. If the meat lambs are slaughtered until they are more than 1 year old, the feeding cost is high and there is more fat deposition. Therefore, the period of rapid fattening and fattening of lambs should be 5 ~ 6 months old.