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Effect of energy intake on the performance of different types of pig from 45 to 100 kg body weight. 2. Tissue gain

Published online by Cambridge University Press:  02 September 2010

N. Quiniou ,
J. Noblet  and
J.-Y. Dourmad
N. Quiniou
Affiliation:
Station de Rercherches Porcines, Institut National de la Recherche Agronomique, 35590 St-Gilles, France
J. Noblet
Affiliation:
Station de Rercherches Porcines, Institut National de la Recherche Agronomique, 35590 St-Gilles, France
J.-Y. Dourmad
Affiliation:
Station de Rercherches Porcines, Institut National de la Recherche Agronomique, 35590 St-Gilles, France
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Abstract

The effect of energy supply on physical composition of body weight gain between 45 and 100 kg was studied in Large White castrated males (cLW), crossbred Pietrain × Large White castrated males (cPPX) and boars (bPPX). The pigs were either given food ad libitum and kept in individual pens in experiment 1, or allocated to four energy levels (0·70, 0·80, 0·90, and 1·00 ad libitum) and kept in metabolism cages in experiment 2. Daily protein supplies were calculated to be the same at the four energy levels within each type of pig and non-limiting for growth. Five additional animals for each type of pig were slaughtered at 45 kg. Daily tissue gain was measured according to the comparative slaughter technique. The daily lean gain increased with metabolizable energy (ME) intake according to a linear-plateau relationship whereas the daily fat gain increased linearly. The type of pig significantly affected the slope of the relationship between lean gain and ME intake (from 15 to 22 g per extra MJ ME) but not the slope of the relationship between fat gain and ME intake (10 g per extra MJ ME on average). Increased energy intake was associated with increased fatness of body-weight gain, which was higher in cLW and cPP× than in bPP×.

Keywords

body lean massenergy intakegenotypespigssex
Type
Research Article
Information
Animal Science , Volume 63 , Issue 2 , October 1996 , pp. 289 - 296
Copyright
Copyright © British Society of Animal Science 1996

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