Quelques perspectives d'avenir ouvertes par les recherches zootechniques pour les productions de viande bovine: maîtrise de la reproduction

R. Ortavant

Économie rurale, 1970, vol. 85

Abstract: The technical problems posed by beef-production are linked to the production and growth of young animals and to social restrictions in animal production. In order to increase the productivity of a meat-herd, a certain number of possibilities are provided by zoo- technical research : — The control of the sexual cycles by the blocking of certain functions of the hypophysis : 25 days after treatment, 80 to 85 per cent of the cows treated can be pregnant ; — increase in the fertility of the herd by selection; — increase in the fertility by provoked superovulation : 25 per cent of twinbirths have thus been obtained amongst French Friesan «r Pie Noire » cows ; — control of parturition ; — control of thé social structure of groups of cattle.

Keywords: Livestock Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Date: 1970
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Persistent link: https://EconPapers.repec.org/RePEc:ags:ersfer:350652

DOI: 10.22004/ag.econ.350652

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