The study was conducted at the Research and Development Institute - Hue University of Agriculture and Forestry (for Co pig) and Nghe An Breeding Center (for Meo pig) in 2018 to determine the effectiveness of the iron supplement for suckling piglets on Co and Meo breeds. The experiment was conducted on a total of 24 litters Co piglet and 24 litters Meo piglet, ensuring uniformity in the number of pigs/litter, birth weight/litter. The sow herd was selected as second to fourth litter, ensuring uniformity in breed, age and reproductive performance across parities. The sows in both lots got the same vaccines. The piglets of each breed were randomly chosen and divided into 2 lots: in experimental lot, piglets received iron supplement, and control lot - piglets without iron supplement. Each lot has 12 litters, each litter is a repetition. Observation time starts from birth and ends when pigs are 50 days old (weaning). The quality of care follow techniques of breeding endogenous pigs and current regulations of veterinary medicine in disease prevention.
The results showed that iron supplementation for Co and Meo piglets during suckling period contributed to the increase in the number of weaning pigs/litter from 7.17 to 17.99%; increase weaning weight/piglet to 5.67 - 7.54%; increase weaning/litter weight to 13.23 - 26.91%; reduce diarrhea incidence to 8.27 - 8.68%; reduced about 7.51 - 12.9% in piglet mortality until weaning, compared piglets without iron supplement.