What to Do When Pigs Are Anorexic and Losing Weight? Feed Flavoring Can Help
Because pig farmers often mix certain minerals, drugs, cakes and other ingredients into pig feed, the original taste of the feed is changed. When pigs eat this feed alone for a long time, they develop a poor appetite (anorexia). In this case, you can add flavoring to the pigs' feed.

Pigs
Give them something sweet. Add an appropriate amount of saccharin to pig feed; fattening pigs love it and become plump and strong after eating it; lactating sows love it even more, and after eating it their feed intake increases, preventing loss of condition and weakness, and it can also increase milk production; piglets prefer sweetness even more, and not only does the survival rate improve, but they are weaned earlier and gain weight significantly. Generally, add 150—200 mg per kg of pig feed. If conditions permit, add white sugar in late spring, summer and early autumn, and add brown sugar in early spring, late autumn and winter, adding 1—3 g per kg of feed, which works better than saccharin.
Give them something spicy. When pigs have a poor appetite, feeding them a little pepper powder, chili and the like is very effective. Because pepper powder and chili contain a pungent aroma and are stimulating, after pigs eat them, they stimulate increased gastrointestinal secretions, speed up gastrointestinal peristalsis and improve digestive power. Especially when a little pepper powder and the like is added to the feed of lactating sows, it can not only increase the sow's feed intake, but also reduce the incidence of disease in piglets and prompt piglets to be weaned early.
Give them something salty. Adding an appropriate amount (no more than 6 g per day) to the pig's daily ration can promote the pig's metabolism and growth and development, increase water intake, improve feed palatability, enhance appetite and help digestion.
Give them something sour. Add 10 mL of vinegar (diluted with water is also fine) per kg of pig feed and stir evenly; not only do pigs love it and it aids digestion, but because vinegar contains amino acids and the like, it is beneficial to the pig's growth and development, but the amount added must be appropriate.