Effect of dietary fibre and fat content on the reproductive performance of rabbit does bred at two remating times during two seasons
One hundred and forty one rabbit does were used to study the effect of four diets differing in energy concentration (8.92 to 11.86 MJ DE/kg), fibre and fat content, two parturition-remating intervals (1 or 9 d), and two seasons (hot season and rest of the year) on productiva performance throughout a 18 months period. Addition of a 3.5 % of pork lard to a diet containing 18 % ADF implied an increase of energy digestibility (by 8 %, P<0.05), DE content (by 15 %, P<0.001), feed intake (by 6 %, P<0.1), and DE intake (by 22.5 %, P<0.05). Fat addition did not affect average weight of does, prolificacy, or replacement rate, but improved fertility (by 7%, P<0.1), weaning weight per pyp (by 3%, P<0.1), and numerical proauct1víty per cage and year (by 12 %, P<0.05). An increase of dietary fibre content (from 18.0 to 23.8 % ADF) decreased linearly (P<0.001) energy digestibility, and DE content, but increased (P<0.05) feed intake, so that neither DE intake (2.56 MJ/d as average) or does productivity were significantly affected. lntensification of reproduction system elicited a shorter parturition interval (- 3.2 days, P<0.05), but also a decrease of average does weight (- 0.14 kg, P<0.05), a lower conception rate (P<0.05), and a higher pup mortality, so that numerical productivity per cage and year was not significantly affected by treatment. The increase of temperatura during the hot season decreased feed intake (by 21 %, P<0.001), average weight of does (- 0.15 kg, P<0.05), fertility (- 16 %, P<0.001), numerical productivity (- 23 %, P<0.001), and weaning weight (- 7 %, P<0.01). No significant effects of the interactions diet x remating interval or diet x season were found on any of the variables studied.
A0AC, 1984. Official Methods of Analysis (14th ed.). Association of Official Analytical Chemists, Arlington VA., USA.
B0RGIDA L.P., DUPERRAY J., 1992. Summer complementary feeding of rabbits. J. App. Rabbit Res., 15, 1063-1070.
CASTELLINI C., BATTAGLINI M., 1991. Influenza della concentrazione energetica della razione e del ritmo reprodutto sulle performance delle coniglie. Proc. 9e Congresso Nationale ASPA, Roma, 477-488.
DEBLAS J.C., WISEMAN J., FRAGA M.J., VILLAMIDE M.J., 1992. Prediction of the digestible energy and digestibility of gross energy of feeds for rabbits. 2. Mixed diets. Anim. Peed Sci. Tech., 39, 39-59. https://doi.org/10.1016/0377-8401(92)90030-A
FERNANDEZ C., FRAGA M.J., 1992. The effects of sources and inclusion level of fat on growth performance. J. App. Rabbit Res., 15, 1071- 1078.
FRAGA M.J., L0RENTE M., CARABAÑ0 R.M., DEBLAS J.C., 1989. Effect of diet and of remating interval on milk production and milk composition of the doe rabbit. Anim. Prod., 48, 459-466. https://doi.org/10.1017/S0003356100040460
LEBAS F., 1986. Feeding conditions for top performances in the rabbit. Commission of European Communities. Report EUR 10983, 27-40.
LEBAS F, VIARD-DR0UET F., C0UDERT P., 1988. Reproduction and morbidity of rabbit does. Effects of diet energy level and origin. Proc. 4th World Rabbit Congress, Budapest Oct. 1988, 53-58.
MAERTENS L., 1992. Rabbit nutrition and feeding : a review of some recent developments. J. App. Rabbit Res., 15, 889-913.
MAERTENS L., DE GR00TE G., 1988. The influence of the dietary energy content on the performances of post-partum rabbit does. Proc. 4th World Rabbit Congress, Budapest oct. 1988, 42-52.
MENDEZ J., DE BLAS J.C., FRAGA M.J., 1986. The effects of diet and remating interval after parturition on the reproductive performance of the commercial doe rabbit. J. Anim. Sci., 62, 1624-1634. https://doi.org/10.2527/jas1986.6261624x
PARTRIDGE G.G., ALLAN S.J., FINDLAY M., C0RRIGAL W., 1984. The effects of reducing the remating interval after parturition on the reproductive performance of the commercial doe rabbit. Anim. Prod., 39, 465-472. https://doi.org/10.1017/S0003356100032219
PARTRIDGE G.G., FINDLAY M., F0RDYCE R.A., 1986. Fat supplementation of diets for growing rabbits. Anim. Peed Sci. Tech., 16, 109-117. https://doi.org/10.1016/0377-8401(86)90054-4
SANTOMA G., DE BLAS J.C., CARABAÑO R., FRAGA M.J., 1987. The effects of different fats and their inclusion level in diets for growing rabbits. Anim. Prod., 45, 291-300. https://doi.org/10.1017/S0003356100018869
SAS, 1985. SAS User's guide: Statistics. SAS Inst Inc., Cary, N.C., USA.
VAN SOEST P.J., 1963. Use of detergents in the analysis of fibrous feeds. 2. A rapid method far the determination of fibre and lignin. J. Assoc. Off. Agric. Chem., 46, 828-835. https://doi.org/10.1093/jaoac/46.5.829
Metrics powered by PLOS ALM
Cited-By (articles included in Crossref)
This journal is a Crossref Cited-by Linking member. This list shows the references that citing the article automatically, if there are. For more information about the system please visit Crossref site
1. EFFECT OF ORAL ADMINISTRATION OF YEAST ( Saccharomyces cerevisiae ) ON DIGESTIBILITY AND GROWTH PERFORMANCE OF RABBITS FED DIETS OF DIFFERENT FIBRE CONTENT
Chaudhary L.C., Singh R., Kamra D.N., Pathak N.N.
World Rabbit Science vol: 3 issue: 1 year: 2010
Official journal of the World Rabbit Science Association (WRSA)
e-ISSN: 1989-8886 ISSN: 1257-5011 https://doi.org/10.4995/wrs