Research on adding zinc glycine chelate and zinc methionine chelate into diet for piglets
Summary: A randomized block design experiment was conducted with 160 crossbred (Duroc × Landrace × Yorkshire) pigs (80 males and 80 females), 32 pigs (16 of each sex) were assigned to each treatment, and treatment groups were assigned randomly to pens in 5 replications. 5 treatment groups all used corn …