Skip to Main content Skip to Navigation
Journal articles

Les besoins protéiques et énergétiques du veau de boucherie : détermination et facteurs de variation

Abstract : Little knowledge on the nutritional requirements of veal calves has been acquired since the recommendations of Toullec (1988). Most of the studies used for these recommendations were conducted between the nineteen-sixties and nineteen-eighties, and requirements were expressed as apparently digested proteins and metabolisable energy related to calf body weight, feed intake and body weight gain. Studies conducted later have confirmed these recommendations. However, some points have to be modulated. The efficiency of retention of digested protein cannot be considered as a constant parameter (especially for heavy calves) but rather as a decreasing function of the calf's age or body weight. Separate estimation of both protein and energy requirements would allow the establishment of a synthetic criterion such as the ratio between apparently digested proteins and metabolisable energy. This criterion is rarely used, especially for animals heavier than 150 kg. Moreover, genotypes have evolved (and are still evolving) and new production techniques such as roughage feeding and group-housing are still being developed. These aspects suggest that the updating of the scientific information on nutrient requirements and utilisation in veal calves is necessary in order to propose new recommendations.
Document type :
Journal articles
Complete list of metadata

Cited literature [85 references]  Display  Hide  Download

https://hal.inrae.fr/hal-02662075
Contributor : Migration Prodinra <>
Submitted on : Saturday, May 30, 2020 - 11:25:04 PM
Last modification on : Tuesday, April 27, 2021 - 2:28:03 PM

File

Prod_Anim_2007_20_5_01_1.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Etienne Labussière, Gérard Bertrand, Jean Noblet. Les besoins protéiques et énergétiques du veau de boucherie : détermination et facteurs de variation. Productions animales, Institut National de la Recherche Agronomique, 2007, 20 (5), pp.355-364. ⟨hal-02662075⟩

Share

Metrics

Record views

34

Files downloads

44