Abstract
Six third-parity DYL (Duroc x Yorkshire) x (Landrace x Yorkshire) sows and six local breed sows were used in this experiment. They were randomly divided into two groups (dry feeding and wet feeding). Body weight (BW) and backfat thickness (BF) of sows fed wet and dry diets were not significantly different (P > 0.05) at breeding, 110 days of gestation, day 1 postpartum, day 28 postpartum and gestation BW gain. The sows treated with dry diet were higher (P < 0.05) in lactation BW losses than those on a wet diet and were not significantly different in lactation BF loss (P > 0.05). Average daily gestation feed intakes (ADGFI) and total gestation feed in-take (TGFI) of sows during the gestation period were not different (P > 0.05) be-tween wet and dry diet treatments. Wet feeding treatment had significantly higher (P < 0.05) in average daily lactation feed intakes (ADLFI), total lactation feed intake (TLFI) and total feed intake (TFI) than dry feeding treatments. Litter weight at birth, piglet weight at birth, litter size and weaning to oestrus interval of sow fed dry diet and wet diet were not significantly different (P > 0.05). At day 28, litter weights of wet feeding treatments were numerically greater and piglet weights of wet feeding treatments were significantly greater (P < 0.05) than dry feeding. Lactation BW loss was also higher (P < 0.001) in DYL sows than in local breed sows. DYL breed sows were numerically higher in lactation BF loss than local breeds. Litter size and litter weight of the DYL breed were significantly greater (P < 0.001) and lower (P < 0.05) in piglet weight than those in the local breed. Since DYL breed sows have higher litter sizes; they are more suitable for breeding purposes than Myanmar local breed sows. Furthermore, wet feeding is suitable for two breeds of sow.