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Mécanismes et conséquences de la croissance compensatrice chez les ruminants

Abstract : An alternation of low and high value diets, voluntary or not, generates a compensatory growth phenomenon. Although this has been studied for a long time, recent research deserves to be synthesized, which is the subject of the present paper. More particularly, the influence of successive phases of restriction and re-feeding on the final quality of the products represents an innovative aspect of the research in this field. Moreover, more is known about the hormonal mechanisms related to compensatory growth. These mechanisms are responsible for the orientation of energy and protein metabolism towards an increase in protein accretion during compensatory growth. The influence of compensation on the final body composition of the animal is low even though some authors describe leaner animals at the end of a compensation phase. As for muscle characteristics, changes induced by a nutritional restriction are often reversible and cancelled by compensation. However, some studies point out an improvement in the final sensorial meat properties, more particularly tenderness. These results are not clear-cut but justify the interest on studies linking discontinuous growth and muscle and meat characteristics. Further development of the researches in this field is considered.
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Thierry Hoch, C. Begon, Isabelle Cassar-Malek, Brigitte Picard, Isabelle Savary-Auzeloux. Mécanismes et conséquences de la croissance compensatrice chez les ruminants. Productions animales, Institut National de la Recherche Agronomique, 2003, 16 (1), pp.49-59. ⟨hal-02682148⟩



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