Feed copper weight gain. The addition of trace element copper to pigs during the fattening period of pigs can significantly increase the body weight of pigs and inhibit the infestation of pigs by certain pathogens to ensure the normal growth of pigs. In the feed with added antibiotics, if the appropriate amount of copper is added, the pig's daily weight gain can be increased by 6.7%, and the feed utilization rate can be increased by 2% to 5%. Feed citric acid weight gain. The British added citric acid to pig feed to increase the palatability of the feed, improve the ability of the pig to digest and absorb nutrients, and increase feed conversion. Adding 30 grams of citric acid per kilogram of feed can increase the pig's daily gain from 189 grams to 216 grams. This method is suitable for feeding weaned pigs weighing 5-10 kilograms. Feeding yellow fungus weight gain. The Germans added a certain amount of flavomycin (5 mg/kg for piglets and 20 mg/kg for pigs) to the pig feed. As a result, the feed conversion rate increased by more than 50%, and the pig's daily gain increased by 7%–10%. Feeding oxygenated soda gain. The Germans fed weaned piglets with oxygenated water and fed the weaned piglets once every 5 days. The pigs gained 200-250 grams per day. One of the oxygenated soft drinks is to add a certain proportion of oxygen to ordinary drinking water, usually 1 liter of oxygen in 1 liter of water. Feeding saccharin gains weight. The method used by Germans to feed pigs with appropriate amounts of saccharin is to add 0.05 grams of saccharin per kilogram of formulated feed. When saccharin is first dissolved in water and mixed in the feed, the feed intake of pigs can be increased. Weight can be increased to 7%. For every hundred kilograms of pigs gained weight, feed consumption and costs dropped by 4.8% and 3.5%, respectively. Feeding baking soda gains weight. Americans add baking soda to pig feed that lacks lysine, which can make up for the deficiency of lysine and facilitate the digestion and absorption of crude fiber, making the pig grow more fleshy and gaining more weight. Feed calcium formate weight gain (fertilizer). Finns add 1.5 grams of calcium formate to the piglets for the first few weeks after weaning, which can increase the growth rate of piglets by more than 12%, increase feed conversion by 4%, and reduce the incidence of piglets. Feed zeolite to gain weight. Japanese people add 5% of zeolite to pig feed, which can save 1/4 of the feed. The pig's daily weight gain is increased by about 15%, and at the same time, the pig can also reduce the disease.
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