Scientific sheep raising technology

Scientific feeding and management

Most of the sheep farmers with better economic benefits adopt house feeding and reasonably cooperate with forage and feed for house feeding. This method can save herding workers and increase technical efforts. Using the method of combining grazing and supplementary feeding, in addition to grazing in the green grass period, one is to plant a large number of high-quality forage grasses such as alfalfa, the second is to store a large amount of silage straw, and the third is to strengthen the supplementary feeding of lambs and field sheep. The flexible grazing method is adopted: one is to graze in groups, dividing the sheep into small groups according to age, sex and size, the number of each group varies from 50 to 100, fattening sheep, breeding sheep green grass group grazing, breeding ewes and breeding rams grazing locally. Second, according to the feeding characteristics of sheep, the method of piecewise recurrent grazing is adopted, that is, after grazing every day, let the sheep graze in the place where they used to graze, wait until the sheep is half full, and then graze in the fresh pasture, and then let go when they see that the sheep are not eating much. use the "all-sky star" method to make the sheep full. This method of "Mr. ripening after ripening, tightening before loosening, and three satiety a day" combined with two seasons of slow grazing (slow grazing in spring and autumn), three persistence (adhere to herd grazing, early emergence and late return, secondary drinking water) and three stability (grazing, drinking water, steady entry and exit) and four precautions (prevention of running green, preventing nests, preventing pests and diseases) are beneficial to fattening sheep and protecting lambs.

Optimization of herd structure

By keeping the good and getting rid of the bad, eliminating the old sheep and the sheep with poor production performance year by year, selecting them many times, classifying and cultivating them, adhering to the principle of time (time), city (market conditions) and step by step, the flock structure is continuously optimized and the economic benefit is constantly improved. Because the breed, quantity and development of each household are different, the selection method is different and the selection proportion is also different. However, attention should be paid to the three stages of birth, weaning, one-year-old, reproductive performance and the growth rate of offspring. The proportion of ewes selected is: elimination rate 15% Mel 20%, selection rate 35% Mel 40%. According to the situation, ram is introduced into Suffolk, Dorset, Boer goat, small-tailed Han sheep and other fine breeds, generally not self-breeding. After continuous selection, the age structure of young sheep (0.5-1.5 years old) accounts for 15% Mel 20%, and that of adult sheep (1.5-4 years old) (65% mai 75%, 5-and-a-half years old) accounts for 10% Mel 20%. The proportion of ewes reaches 65%, 70%, of which ewes can breed 45%, 50%. The greater the proportion of ewes, the higher the rate of production, and the better the economic benefits.

Selection and mating mode

It is through the reasonable selection of male and female spouses and adopting scientific breeding methods to achieve the goal of excellent matching and full mating. It can not only make full use of superior male sheep, but also artificially control the lambing season and mating frequency. Estrus synchronization and other estrus control techniques can also be used to make ewes concentrate on estrus in time, mating in a short time, higher conception rate and mating rate, full mating of ewes of appropriate age, and improve the quality of lambs.

The breeding of lambs

Ewes should be given reasonable supplementary feeding in the late stage of pregnancy and early lactation, and at the same time do a good job in drinking water, salt and sanitation in the shed. According to the forage grass, season and ewe conditions, the concentrate group was composed of corn 51%, wheat bran 8%, cake 23%, alfalfa powder 10%, bone meal 3%, salt 2%, calcium hydrogen phosphate 3%. Generally, each 0.5kg-0.7kg was supplemented twice in the morning and evening, and an appropriate amount of high-quality forage was given. Carefully observe the condition of the ewe before giving birth, be on duty at night and pick up with the birth. After the lamb is born, strengthen the breeding to ensure the lactation of the multiple lambs. Lambs were supplied with high quality forage and formula feed from 10 to 14 days after birth, and the feed and quantity varied with sheep. Most of the lambs were supplemented with 50g-70g at the age of two weeks, 100g-150g at the age of 1 month-2 months, 200g at the age of 2 months-3 months, 250g at the age of 3 months, and 300g-500g at the age of 4 months-6 months. The concentrate group consists of 40% corn, 25% cakes, 25% alfalfa forage, 8% wheat bran, 2% bone meal, and the right amount of salt.

Disease prevention

In addition to routine vaccination, medicine bath is carried out after shearing, and insect nematodes are used to deworming in spring and autumn every year. At the same time, the door of the enclosure in the activity place was disinfected with plant ash, and the abnormal or diseased sheep were isolated and treated in order to reduce the morbidity and mortality.