The purpose of the research carried out by the INRA in Guadeloupe (F.W.I.) since 1993 on genetic resistance of Creole goats to gastro-intestinal nematodes, is to introduce this new trait into breeding schemes for grazing small ruminants. The problems of criterions, objectives and environment of the selection are set. The presented experiment has been running since 1996, with a known status of 20 sires up to now. Genetical variability of resistance increases with the age of kids: the highest is observed at 8 months for square-root-transformed faecal egg counts and at 10 months of age for packed cell volume. Liveweight of kids bred on infected pastures presents a genetic variability in contrast to liveweight of heavily treated kids. Genetic relationship between FEC and growth in infected pastures seems to be favourable.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 25: Lactation; growth and efficiency; meat quality; role of exotic breeds in the tropics; design of village breeding programs; n, , 265–268, 1998
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