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Featured researches published by F. Lebas.


Archive | 2005

Feeding behaviour in rabbits

T. Gidenne; F. Lebas; Laurence Fortun-Lamothe

As a monogastric herbivore, the rabbit presents a unique feeding behaviour compared to other domestic animals, since he belongs to the Lagomorpha order (Leporidae family: rabbits and hares, Grasse and Dekeuser, 1955), and consequently possess a main specificity that is the caecotrophy. For recall (see details in chapter 1), the caecotrophy is a complete behaviour involving an excretion and an immediate consumption of specific faeces, named soft faeces or caecotrophes. Consequently, daily intake behaviour of the rabbit is constituted of two meals: feeds and caecotrophes. Although rabbit is not a rodent one of its main feeding behaviour features is to gnaw. The informations about the feeding behaviour have been mainly obtained on the domestic rabbit, either bred for meat or fur production, or as a laboratory animal. It basically involved rabbits receiving ad libitum a balanced complete pelleted feed, supplemented or not with dry forages or straw, but most generally without a real food free choice. Regulation of the intake behaviour will be reviewed according to several factors: age, type of feed, etc. The last part will be devoted to feeding behaviour of the wild rabbit and of domestic rabbits in situation of free choice.


Animal | 2008

Evolution of anti-eCG antibodies in response to eCG doses and number of injections. Relationship with productivity of rabbit does.

M. Theau-Clément; F. Lebas; Jean-François Beckers; Pierre Drion

The aim of this experiment was to study the kinetics of anti-eCG (equine chorionic gonadotrophin) antibodies in relation to eCG dose (8 or 25 IU) and number of injections (n = 11) in comparison with a control group (no injection), and to relate antibody production to sexual receptivity and productivity of rabbit does. In all, 124 lactating primiparous rabbit does were inseminated every 35 days for a year. Just before eCG injection (48 h before insemination), blood samples were collected from all the does to assay anti-eCG antibodies. The anti-eCG antibody binding rate, regardless of the injected dose, shows that none of the does developed detectable anti-eCG antibodies before the 7th injection. The level of detectable anti-eCG antibodies began to show an increase at the 7th injection and was significant only for the 25 IU dose at the 11th injection. At the end of the experiment, 15% and 39% of does treated with 8 and 25 IU, respectively, developed immunity to eCG (binding rate >6%: higher binding rate of the control group). Consequently, the immune response depends on the eCG dose and on the number of injections. Moreover, productivity of does estimated from the number of weaned rabbits produced per insemination is not influenced by the level of eCG antibodies (7.0 and 6.9 for binding rate <6% and binding rate 6%, respectively). Only 19 inseminations (n = 6 and n = 13 for 8 and 25 IU, respectively) were made on hyperimmune does. Consequently, the immune response to eCG seems to be marginal for rabbit does. Moreover, under the described experimental conditions, reproductive performances of hyperimmune does were not affected.


Nutrition of the rabbit | 2010

Nutritional recommendations and feeding management of Angora rabbits.

F. Lebas; R. G. Thébault; D. Allain; C. de Blas; J. Wiseman

The Angora rabbit produces 1.0–1.4 kg year−1 of pure fine animal fibre without grease or plant material contamination, named ‘Angora wool’. This represents some 0.30 of its live weight, the highest keratin production to live-weight ratio found in any fibre-producing animal. In sheep, goat or camelids, this figure is generally <0.10. The capacity of the Angora rabbit to convert food to keratin requires that particular attention be given to its nutrition. There are two important nutritional objectives:


World Rabbit Science | 2010

EUROPEAN REFERENCE METHOD FOR IN VIVO DETERMINATION OF DIET DIGESTIBILITY IN RABBITS

Pérez J.M; F. Lebas; T. Gidenne; L. Maertens; Gerolamo Xiccato; R. Parigi-Bini; A. Dalle Zotte


Nutrition of the rabbit | 2010

Nutrition and feeding strategy: interactions with pathology.

T. Gidenne; Javier García; F. Lebas; D. Licois; C. de Blas; J. Wiseman


Nutrition of the rabbit | 2010

Feeding behaviour of rabbits.

T. Gidenne; F. Lebas; L. Fortun-Lamothe; C. de Blas; J. Wiseman


World Rabbit Science | 2010

PRODUCTION OF ANTI-PMSG ANTIBODIES AND ITS RELATION TO THE PRODUCTIVITY OF RABBIT DOES

F. Lebas; Michèle Theau-Clément; Benoit Remy; Pierre Drion; Jean-François Beckers


World Rabbit Science | 2010

The effects of the complete replacement of barley and soybean meal with hard wheat by-products on diet digestibility, growth and slaughter traits of a local Algerian rabbit population.

D. Lakabi-Ioualitene; G. Lounaouci-Ouyed; M. Berchiche; F. Lebas; Laurence Fortun-Lamothe


World Rabbit Science | 2010

EFFECT OF A SYSTEMATIC PMSG TREATMENT 48 HOURS BEFORE ARTIFICIAL INSEMINATION ON THE PRODUCTIVE PERFORMANCE OF RABBIT DOES

M. Theau-Clément; F. Lebas


World Rabbit Science | 2010

MÉTHODE DE DÉTERMINATION PAR TAMISAGE EN PHASE LIQUIDE DE LA TAILLE DES PARTICULES CONTENUES DANS UN ALIMENT GRANULÉ POUR LAPINS

F. Lebas; B Lamboley

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T. Gidenne

University of Toulouse

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Michèle Theau-Clément

Institut national de la recherche agronomique

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J. Wiseman

University of Nottingham

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J. Ouhayoun

Institut national de la recherche agronomique

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Laurence Fortun-Lamothe

Institut national de la recherche agronomique

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P. Coudert

Institut national de la recherche agronomique

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