Although the dosage of feed additives is small, it plays an important role in improving the heal
Although the dosage of feed additives is small, it plays an important role in improving the health level and production performance of sheep and reducing production costs. Therefore, feed additives should be selected scientifically in sheep production. Let's find out what kinds of feed additives are available for raising sheep.
I. Non-protein chlorine additives
1, urea urea is the most commonly used non-protein chlorine. 1kg urea is equivalent to 2.87kg crude protein and 5 ~ 6.0 kg soybean meal. Giving 7 ~ 10 g urea to each fattening sheep every day can greatly improve the weight gain rate.
2. Biuret 1kg biuret is equivalent to 2.55kg crude protein. Under the condition of feeding sheep with low-quality forage, feeding biuret 2 1g per sheep every day can increase the feed intake 12% or more, with an average daily gain of 65 g. Compared with urea, biuret has a good supplementary feeding effect on sheep, and its palatability and preservation are better than urea.
3. Urea acetate, trade name Niuniluo, is a compound produced by the reaction of phosphoric acid and urea under certain conditions, with chlorine content of 17.72% and phosphorus content of19.5g%.
4. Starch urea Starch urea is made by mixing and puffing urea, crushed grains, trace elements and forming agent according to a certain proportion. Used to feed fattening sheep, the daily feeding amount of each sheep is 50 ~ 80g, and good weight gain effect can be obtained.
In addition, there are fatty acid urea, methyl urea, diammonium phosphate, ammonium nitrate, ammonium sulfate, ammonium bicarbonate and so on, which can also be used as non-protein nitrogen additives for sheep instead of urea.
Second, rumen metabolism regulator
1. Rumenin is used to house-feed sheep, increasing by about 3% every day, and the feed conversion rate can be increased by about 27%; Supplementary feeding can increase daily gain by about 30% and feed conversion rate by 13% ~ 19%.
2. Thalidomide sodium salt Thalidomide sodium salt, also known as sodium hydrochloride or thalidomide, is a crystalline powder with a slight odor, and its function and effect are similar to those of rumen hormones.
Three. Antibacterial growth promoter
1, bacitracin zinc bacitracin zinc is beneficial to the digestion and absorption of nutrients in sheep, improving feed utilization rate and weight gain rate. When the dosage is 10 ~ 20 mg/kg, the growth rate can be increased by 7.3% and the feed utilization rate can be increased by 3.3%.
2. Kuaiyuling Kuaiyuling has good antibacterial effect, can also promote the retention of chlorine in sheep, promote production performance and increase lean meat rate, and has obvious growth promotion effect, especially beneficial to the growth and development of lambs.
Fourth, mineral element additives In order to ensure the normal health and growth of sheep, mineral feed needs to be added to supplement mineral elements.
1, calcium and phosphorus are supplemented by calcium hydrogen phosphate, shell powder and limestone powder; Salt is used to supplement chlorine and sodium; Magnesium sulfate is used to supplement magnesium and sulfur. The above mineral feed generally accounts for about 65438 0% of the concentrate.
2. Compounds for adding trace elements to supplement trace elements include ferrous sulfate, zinc oxide, manganese sulfate, sodium selenite and potassium iodide. Because the content of these elements is very small, they must be fully mixed before feeding and mixed with feed in the form of premix.