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.: Home > Animal Science Papers and Reports > 2007 > Volume 25 Number 4 > Wojciech Kapelaٌski**, Salomea Grajewska, Maria Bocian, Jolanta Kapelaٌska

Slaughter indicators and carcass traits as related to changes in body weight during lactation and post-weaning period of primiparous sows

Wojciech Kapelaٌski**, Salomea Grajewska, Maria Bocian, Jolanta Kapelaٌska
carcass / primiparous sows / reproductive performance / slaughter quality
Abstract :

A total of 70 primiparous sows slaughtered after the weaning of piglets, were divided into three
groups – A (n=16), B (n=42) and C (n=12) differing in body weight loss (mean of 3.53, 6.95 and
12.53% of sow’s body weight, respectively) during a 21-day lactation. The sows’ body weight loss was not affected by the litter size, but was significantly different in groups A, B and C (mean of 0.60, 1.25 and 2.14 kg per piglet, respectively). Mean warm carcass weight in A, B, and C sows was 123.34, 119.90 and 114.10 kg, respectively (P<0.05). Mean meat content of carcass (52.13, 51.60 and 53.55%) and mean backfat thickness (2.28, 2.33 and 1.96 cm) were not affected by the group. The weight of ham and weight of meat of ham were both lower in group C than in group A (P<0.05). During the weaning-to-slaughter period (mean of 9-10 days), sows showed different live weight gain being a basis of dividing them into three further groups (A1, B1 and C1). No weight gain or even small weight loss (mean of -1.60 kg) was found in A1, a moderate gain (2.63 kg) in group B1 and a high (mean of 9.44 kg) in group C1. Significant inter-group differences that were expected in carcass muscling and fatness traits were not statistically confirmed. Presumably, the realimentation period was too short to affect carcass characteristics.

Keywords :
carcass / primiparous sows / reproductive performance / slaughter quality

Date Deposited : 08 Aug 2011 12:51

Last Modified : 08 Aug 2011 12:51

Official URL: http://www.ighz.edu.pl/

Volume 25, Number 4, - 2007

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