Straw feed sheep technology application effect

The so-called straw feed mainly refers to the straw of legume crops and the legumes of legume crops. Gramineous crop stalks mainly include corn stalks, wheat stalks, rice straw, etc.; bean crop stalks include soybean stalks, broad bean stalks, etc., in addition to various vines.

The nutritive characteristics of straw feed are high crude fiber content, accounting for 30% to 40% of dry matter, high content of lignin, hemicellulose and silicate, and a close combination of cellulose, hemicellulose and lignin, and rough texture Poor palatability, low digestibility. In general, the digestion energy per kilogram of straw feed is between 7.78 MJ and 10.4 MJ, the crude protein content is low, the legume straw is 8.9%-9.6%, and the grass is 4.2%-6.3%. The crude fat content is less than 1.3% to 1.8%. The mineral content is the lowest, lacking elements such as drill, copper, sulfur, selenium, and iodine necessary for animal growth, and the calcium and phosphorus content is also lower than that of the sheep. There is a serious lack of vitamin content, especially vitamin A, vitamin D, and vitamin E that are required for sheep's growth. Although there are many deficiencies in straw feed, after processing and modulation, the nutritional value and palatability have been improved, and it is still the main feed for sheep winter supplementation.

Straw-fed sheep are mostly house-fed and fed. According to the different physiological stages of the sheep, scientific feeding and management can be carried out to achieve the purpose of reducing production costs, increasing economic benefits, and obtaining more livestock products. The effects of the sheep after processing and processing are now selected as follows for reference by farmers.

Silage Feeding Goats

According to Xing Yantie’s report, goats were tested using the “three-stage feed technology for silage corn stalks plus compound feed plus mineral additives” (55% silage corn stover, 45% concentrate, plus 1% of the additive for the diet). The results showed that the sheep had an average daily weight gain of 135 grams, an average monthly weight gain of 4.01 kilograms and a maximum of 6.7 kilograms, and a net increase in sheep (fat feeding period of 2 months). The output value was between 8 and 12 yuan.

Ammonium wheat straw feed sheep

According to the report, the authors selected 24 sheep of the same breed, of the same sex, healthy and disease-free, and weighing about the same age as the experimental and control groups. The experimental group was fed with ammoniated wheat straw, and the control group was fed dry wheat straw with the same amount of other concentrates. The 90-day trial results showed that the average daily feed intake of the sheep in the experimental group reached 0.75 kg, which was 41% higher than the 0.54 kg of the control group; at the end of the test, the average weight of the test group was 30.4 kg, and the daily gain was 0.07 kg, while the control group The average weight reached 26.35 kg and the daily weight gain was 0.04 kg. After calculating the economic benefits, the average meat production per sheep in the experimental group was 14.62 yuan more than that in the control group, and the benefit was significant.

Hot jet wheat straw fed to sheep

According to reports from the Animal Husbandry Academy of Inner Mongolia, 14 crossbred rams aged from 5 months to 6 months of age produced in early spring were divided into the hot-injected wheat straw group and the control (ordinary) wheat straw group, and each group was fed with hot-sprayed wheat straw and wheat straw. Ordinary wheat straw. The two groups were fed with the same amount of mixed feed (230 g/day only). The mixed concentrate consisted of 12% of corn, 48% of wheat bran, and 40% of flax cake, plus 1% of salt and bone meal. The results of the 63-day trial showed that the daily intake of wheat straw in the thermal spraying group was 595.7 grams, with an average daily weight gain of 50.3 grams, 11.89 kilograms per kilogram of weight gain, compared with 535.2 grams, 24.5 grams, and 21.82 kilograms for the control group. , visible thermal spray group was significantly better than the control group.

Micro-storage corn stalks to feed lambs

According to Hu Jianhong’s report, 40 crossbred lambs of Small Tail Han sheep and Ningxia Tan sheep were randomly divided into the experimental group and the control group. The experimental group used micro-cemented corn stalks, and the control group used untreated corn stalks. The same amount of feed. The proportion of concentrates was 40% corn flour, 20% wheat bran, 40% peas, and a daily limit of 135 grams. After 30 days of testing, the average daily weight gain of the experimental group was 323.3 grams, which was more than 193.3 grams of the control group. Grams, an increase of 67.3% (P <0.01), the average cost per kilogram of weight gain in the experimental group was 21% lower than the control group, an increase of 71.4%.

EM fermented stalks for feeding meat sheep

According to Huakou News, 30 crossbreeding bred goats of Shaluole and other mutton breeds with an average weight of 36.5 kilograms were randomly divided into 3 groups. One group was tested for ghrelin per 100 kg of air-dried diet plus 0.45 kg of Chinese herbal medicine. The second group of trials added 10 kg of EM fermentation material per 100 kg of air-dried diet. The three groups of the trial were the control group and were fed the basal diet. The composition and ratio of basal diets consisted of corn, bean cake, urea, and salt, which accounted for 24% of the diet, and corn stalk grass meal accounted for 76% of the diet. After a 90-day trial, the total weight gain of the three groups was 66 kg, 62 kg, and 53 kg, respectively, and the average daily weight gains were 81.48 grams, 76.54 grams, and 72.70 grams, respectively, 12.07% and 5.28% higher than the control group. %. In this experiment, EM fermented straw accounted for only 10% of the amount of feed straw used as an additive. If all of the straw can be fermented and fed, the effect would be better.

Many trials have shown that straw treated with biological or chemical technology is better than untreated straw for sheep, palatability is good, feed intake is large, production performance is significantly improved, and economic benefits are obvious. But we must make good use of straw. In addition to doing a good job in the technical treatment of straw, we must also pay attention to the following points: First, use sheep straw to add a certain amount of fine material in the diet. Studies have shown that 50% straw and 50% concentrate feed the lambs to make the best economic benefit. However, according to China's national conditions, the form of “low concentrates and high coarse materials” can be used, but the concentrate should account for at least 10% of the straw diet. The second is to add non-protein nitrogen in the straw, such as adding urea 3% to 5%, can significantly improve the straw digestibility. Third, we must pay attention to filling in some necessary inorganic salts and vitamins so as to achieve sheep's diet balance and promote the production performance.