The aim of this study is to find early indicators of longevity in two divergent goat lines selected for high or low functional longevity. Passive Immune Transfer (PIT) that is transfer of immunoglobulin (IgG) from mother to kid through colostrum could be one of these indicators. The first step of this project was to study the impact of PIT (n=422) on goat kid’s health. Success of PIT had a positive influence on kid’s health, which resulted in a decrease in the occurrence of several health problems. Then we estimated genetic parameters for colostrum quality (n=201): heritability was 0.19±0.16 for IgG concentration and 0.37±0.16 for IgG yield. PIT heritability (IgG in blood of kids) was lower: 0.04±0.07. Altogether, the study led to promising results regarding the possibility of integrating the colostrum quality traits into selection.
Proceedings of 12th World Congress on Genetics Applied to Livestock Production (WCGALP)
Technical and species orientated innovations in animal breeding, and contribution of genetics to solving societal challenges
EditorsR.F. Veerkamp and Y. de Haas
Published: 2022 Pages: 3364
eISBN: 978-90-8686-940-4
Book Type: Conference Proceedings
746. Genetic analysis of colostrum and passive immune transfer in divergent goat lines selected for functional longevity
M. Wicki Related information
1GenPhySE, Université de Toulouse, INRAE, Castanet Tolosan, France.
2Institut de l’Elevage, Castanet-Tolosan, France.
*Corresponding author: marine.
, C. Huau Related information2Institut de l’Elevage, Castanet-Tolosan, France.
*Corresponding author: marine.
1GenPhySE, Université de Toulouse, INRAE, Castanet Tolosan, France.
, T. Fassier Related information3Domaine de Bourges, INRAE, Osmoy, France.
, R. Rupp Related information1GenPhySE, Université de Toulouse, INRAE, Castanet Tolosan, France.
Published Online: February 09, 2023
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