Piglets' productive quality and raising efficiency are affected by their initial placement weight.

Abstract

This study analyzed the relationship between the piglets' birth weight and their subsequent daily growth rate, average feed intake, feed conversion, rearing cost indicators, and rearing cost structure. Rearing times were shown to reduce by 3.17% for piglets whose birth weight was more than 1.1 kg and by 15.81% for those whose birth weight was greater than 8 kg. Piglets' weights increased 2.03% when switched to fattening, and their average daily increases were 1.76 percentage points higher at 10.1 percentage points higher. Simultaneously, it led to a 1.46 percentage point and 7.28 percentage point decline in absolute growth. Piglets' average daily feed intake went up 8.43% and 18.07% when they were put into raising, while feed conversion went down 5.43% and 7.61%, respectively. There was no correlation between the piglets' average feed intake and their birth weight. The value of piglets increases by 6.22 and 19.88% for every kilogram above 7.0 kg that they weigh at birth throughout upbringing. However, the cost of raising a single pig remained almost the same across all groups when they were moved into the fattening phase, while it was higher for pigs weighing less than 7 kg at birth (2.28 and 2.36% more, respectively). While the initial setup weight increased, the cost of producing a single head fell by 2.77 and 20.12%, respectively. The cost of raising piglets whose birth weight was more than 8 kilograms was reduced by 17.84% compared to those whose birth weight was between 7 and 8 kilograms and by 20.12% compared to those whose birth weight was less than 7 kilograms. There was no discernible relationship between the initial live weight of piglets and the cost of feed used to develop that piglet to a final weight of 1 kilogram. Feed accounted for between 2.33 and 9.41% of total raising costs as piglets' live weights grew, but veterinary care expenses were independent of piglets' initial body weights. Piglets' birth weight probably affected their daily growth rate by 14.2%, but it had no appreciable effect on piglet survival or raising costs.