Fattening method

First of all, choose the best hybrid combination sheep and use heterosis to increase yield.

The second is to establish pedigree files of breeding sheep. The sheep are grouped and numbered, and breeding cards are established for rams and ewes respectively, and the breeding and lambing conditions are recorded to clarify the blood relationship of sheep. Erjian sheep disease prevention and control project. According to the epidemic characteristics of local sheep diseases, adhere to the principle of "prevention is more important than treatment", and carry out drug prevention and immunization for sheep in a planned way to prevent infectious diseases and parasitic diseases.

Three changes, that is, one change to single green feed for sheep, dry roughage and mixed concentrate for supplementary feeding. Second, change the ground free-range culture to captive culture. Third, change the mixed feeding of mother and child, large and small, strong and weak sheep into group feeding.

Four diligence is a pair of sheep diligent in observation, and timely diagnosis and treatment of sick sheep is found; Second, the sheepfold and sheepfold are often cleaned and disinfected; Third, litter, forage and utensils are often exposed to the sun. Fourth, work clothes and medical utensils are often boiled and disinfected.

The five precautions are heatstroke prevention, cold prevention, moisture prevention, water shortage and sudden change of grass and medicine.

Six clean refers to clean pens, clean utensils, clean feed, clean drinking water, clean air and clean sheep.

5. House feeding fattening

With the development of sheep industry, the traditional way of raising sheep can no longer meet the requirements of modern production. It is necessary to change the traditional grazing habits, develop house-feeding or semi-house-feeding sheep, change from the number of sheep raised in the past to the quality and efficiency, and take the road of large-scale and ecological feeding. Raising sheep in shed is beneficial to reducing production consumption, improving product quality and raising sheep benefits; It is conducive to returning straw to the field after abdomen, providing more organic fertilizer for agriculture, increasing grain output and reducing excessive utilization of natural ecological resources; Conducive to the improvement of the ecological environment. The production cost increased after the sheep were transferred to households. Therefore, it is necessary to master the principle and method of fattening mutton sheep in house, so as to improve the economic benefit of raising sheep.

1 fattening principle of mutton sheep

1. 1 Reasonable feed supply According to feeding standard, combined with the growth and development characteristics of fattening sheep, determine the feed composition, dietary supply or supplementary feeding quota of mutton sheep, and adjust it in time according to the actual weight gain effect.

1.2 emphasize economic benefits and don't blindly pursue the maximization of daily income. Especially under the condition of fattening in house, the maximum weight gain of mutton sheep is often based on high-precision diet, and the maximum daily weight gain of mutton sheep does not necessarily mean that the best economic benefits can be obtained. Therefore, when setting the expected fattening intensity, the best economic benefit must be the only criterion.

1.3 Organize production reasonably and fatten sheep at the right time. Determine the length of fattening period according to the growth and development stage at the beginning of fattening sheep. Too short, the fattening effect is not obvious, too long, the feed reward is low and uneconomical. Therefore, when mutton sheep reach a certain weight after a certain period of fattening, they should be slaughtered or listed in time, instead of blindly pursuing the maximum weight of sheep. Determine the fattening scale of mutton sheep according to local conditions and seek the best economic benefits according to the laws of market economy.

2 Preparation of mutton sheep before fattening

2. 1 Build a sheepfold to raise sheep, build a shed, and have sufficient activity space. The sheepfold should have the functions of heatstroke prevention and cold prevention, and be selected in a place with high terrain, abundant sunshine, dryness, good ventilation and shelter from the wind, and convenient drainage. When the scale is small, it can be built in or near the residential courtyard, which is convenient for management and care. When the scale is large, it is best to build a sheep community far away from the village to facilitate epidemic prevention.

The area of the sheephouse depends on the number of sheep raised. Usually, the average area of each sheep is 0.8 ~ 1.2 square meters. Rams and ewes should occupy a larger area, sheep and lambs should be smaller, fine-wool sheep and semi-fine-wool sheep should be larger and goats should be smaller. Generally, the height of a sheep shed is 2.5m, the width of the door is not less than1.5m, and the height of the window from the ground is not less than1.5m, so as to ensure good lighting and ventilation effect. Doors and windows are best made of wood. The span is 7-8 meters, and the length of each sheepfold shall not exceed 30 meters according to fire control requirements.

The pen house is made of brick and wood structure, facing south, and has a rectangular layout. Plastic greenhouses can be built in winter, and exhaust holes are left at the top or so to prevent the humidity in the greenhouse from being too high.

There should be a sports field in front of the pen house, and the area of the sports field is 2 ~ 4 times that of the sheep house. A fixed pool or basin should be placed in the middle of the playground for sheep to drink. There should be a fixed trough or a movable trough around or in the middle. The fixed feeding trough is made of cement or brick. The trough should be wide at the top and narrow at the bottom, and the trough bottom is round. The movable trough is made of wood.

2.2 Adequate forage is the material basis for fattening mutton sheep. Fattening mutton sheep must be fed grass first, which can be solved by four ways: first, fully collect locally produced seedlings and leaves with high nutrition such as peanut seedlings, sweet potato seedlings, locust leaves and poplar leaves. The second is silage and micro-storage. If it is wheat straw and dry corn straw, you can store it a little. After harvesting corn in autumn, the green straw should be cut short in time for silage. The third is to use the by-products of distiller's grains and dregs, such as distiller's grains, bean curd dregs and powder dregs. Fourth, planting alfalfa, winter grazing 70- rye, grain amaranth and other high-quality pastures.

2.3 Selection of excellent breeds for raising sheep in houses should be combined with the local production practice, and select excellent breeds that adapt to local ecological conditions, have high production performance, good product quality, short feeding cycle and high economic benefits. There are many breeds of sheep and goats that are suitable for house feeding. From the point of view of house feeding, the effect of house feeding for mutton sheep is more obvious. Goats generally choose the hybrid offspring of Boer goat, Shaneng dairy goat and local goat; Sheep should be hybrids of Charolais, Dorset, Suffolk, German Merino and small-tailed Han sheep or local sheep.

2.4 Selection and grouping of fattening sheep Generally speaking, young sheep gain weight faster than old sheep and have a good fattening effect. Lamb 1 ~ 8 months old grows fastest, mainly with long muscles. Choosing weaned lamb as fattening sheep has good meat quality and high benefit. Therefore, generally, after the lambs are weaned and determined as a whole group, the lambs that are not suitable for breeding are grouped according to gender and weight, and fattened in groups. Eliminate adult sheep and fatten them according to age and weight.

2.5 castration, disinfection and deworming generally speaking, male lambs are easy to manage after castration, and the meat is tender and light. Doing a good job of cleaning and disinfection of pens and sanitation during fattening can effectively prevent sheep from getting sick during fattening. It is an important measure to ensure good fattening effect to drive out internal and external parasites of mutton sheep and reduce the influence of parasitic diseases. Insecticides include nitrochlorophenol, thiodichlorophenol and albendazole. These drugs can effectively repel insects by taking 4 mg, 35 ~ 75 ml and 2.5 ~ 3 mg orally per kilogram of body weight respectively.

2.6 Deformed sheep's hooves caused inconvenience in walking and affected feeding, especially for shepherds, which would seriously affect their production performance. Therefore, sheep should be trimmed and reshaped before fattening.