Documentations

Effects of exposure to hot temperature and reduction of dietary protein level on performance of multiparous lactating sows

The effects of exposure to high ambient temperature (29 vs 20°C) and reduction of dietary crude protein (CP) level were tested on 59 multiparous Large White x Landrace sows. The…

Influence de l'exposition au chaud et de la réduction du taux de protéines dans l'aliment sur les performances des truies multipares en lactation

Les effets de l’exposition au chaud (29 vs 20°C) et de la réduction du taux de matières azotées totales (MAT) sont testés sur 59 truies multipares croisées Large White x…

Effect of ambient temperature and diet composition on lactation performance of sows with regard to parity

The effects of ambient temperature (20 vs. 26°C) and dietary nutrient contents on sows’ lactation performance was studied over their first three lactations. The net energy (NE) and lysine contents…

Evolution of « abnormal » teats in gilts during growth and first lactation

The aim of this study was to estimate the risk of commercializing gilts with « abnormal » teats. The teats notation was carried out on 252 gilts at 25 kg…

Evolution in litter size with farrowing age in pure bred and crossbred sows

This study is based on data provided by the French national program of Technical Management of Sow Herds (GTTT).Information on a total of one million litters weaned between 1996 and…

Estimation of realised genetic trends in French Large White pigs from 1977 to 1998 using stored frozen semen : experimental design and first results

An experimental design has been implemented in order to estimate realised genetic trends from 1977 to 1998 in the French Large White pig breed. Large White sows were inseminated with…

Study of the genetic variability of selected and local breeds using pedigree information

The pedigree analysis of four selected pig breeds (Large White dam line, Large White sire line, French Landrace and Piétrain) and five local breeds (Basque, Gascon, Blanc de l’Ouest, Limousin…

Interactive effects of the RN and HAL genes on pigmeat quality : results on processing and slicing of cured-cooked ham

An experiment was set up in order to estimate the interactive effects of the two genes HAL (N and n alleles) and RN (RN- and rn+ alleles) on the score…

Destructured meat: the situation in five slaughterhouses in western France ; risk factors and a proposed prediction model ; colorimetric, biochemical and histological characterisation

In order to assess the frequency of destructured meat, data from 3740 hams produced after 44 slaughter runs were collected in 5 slaughterhouses located in western France. A total of…

Inventory and characteristics of « Pig meat quality schemes » ; « labels », product quality guarantee and organic production

In 1999, 3.8 millions pigs, reared in 2 600 farms, were produced under official quality schemes in France. This represented 16.5% of the national production.In France there are 13 different…

Concentrations of trace elements in the diets and slurry of fattening pigs, sows and piglets

The objective of this study was to characterise the trace element composition of diets and slurry of pigs at different ages.Slurry was collected in stainless steel tanks placed under the…

Teneurs en éléments-trace métalliques des aliments et des lisiers de porcs à l'engrais, de truies et de porcelets

L’objectif de cette étude est de caractériser la composition des aliments et des lisiers de porc par stade physiologique pour 15 éléments-trace. Des bacs en inox disposés sous caillebotis nous…