Precautions for adding fat to pig and poultry feed
1. Control the amount added, not as much as possible. Generally, young birds should be added more properly, and pigs and poultry should be added less in the late stage; highly cultivated modern varieties should be added more, and local varieties can be added less. For grain-based diets, it is difficult to get enough energy for high-yielding pigs, so adding fat is necessary. It is best to conduct small batch tests on each pig farm and poultry farm, and determine the proportion of addition based on the test results.
2, to ensure the quality of grease. There must be no smell. Prevent doping, oxidation, denaturation, mildew, toxic and contaminated. Need to add the right amount of antioxidants to prevent rancidity. Commonly used oil antioxidants are BHT (dibutylhydroxytoluene) or BHA (butylhydroxyanisole), which are often used together, and the usual concentration is 0.005% to 0.02%. However, ethoxyquin can not be used. Because ethoxyquin is volatilized in the reactive oxygen method prior to oxidation.
3, pay attention to the energy ratio. When adding fats and oils, the supply of protein and amino acids should be increased accordingly to prevent the lack of protein and amino acids due to the addition of oils and fats.
4. After adding fat, the supply of vitamin B12 and vitamin C must be increased in the feed to facilitate the absorption and utilization of fat and improve feed utilization.
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