Evaluation of dietary coated omega-3 fatty acid supplementation on reproduction performance, growth performance, nutrient digestibility, and blood profiles in lactating sows and suckling piglets
A total of 16 sows (Landrace × Yorkshire) were used in a 33-day trial (7 days before expected parturition) to determine the effects of dietary coated omega-3 fatty acid supplementation on reproduction performance, growth performance, nutrient digestibility, and blood profiles in lactating sows and suckling piglets. Pigs were randomly allotted into two treatments with 8 replicates per treatment and the parity was 4.9. The dietary treatments were as follows: CON, corn-soybean meal based diet (omega-6:omega-3 polyunsaturated fatty acids (PUFA) ratio of 17:1) and TRT, CON + 0.9% omega-3 PUFA (omega-6:omega-3 PUFA ratio of 5:1). The supplementation of coated omega-3 increased piglet’s body weight (BW) (d 7) and average daily gain (ADG) (d 0 to d 7) (P < 0.05) from farrowing to weanling compared with control. No differences (P > 0.05) were observed on reproduction performance, nutrient digestibility, and blood profile in sows. In conclusion, our study demonstrated that the dietary supplementation of 0.9% omega-3 PUFA in corn-soybean meal based diet (omega-6:omega3 PUFA ratio of 5:1) improved BW and ADG of suckling piglets during the first week.