Reproductive long-term effects, endocrine response and fatty acid profile of rabbit does fed diets supplemented with n-3 fatty acids

Garcia Rebollar, Paloma and García García, R. M. and Arias Álvarez, María and Millán, P. and Rey, Ana Isabel and Rodríguez, M. and Formoso Rafferty, Nora and Riva, S. de la and Masdeu, M. and Lorenzo González, Pedro Luis and García Rebollar, Pilar (2014). Reproductive long-term effects, endocrine response and fatty acid profile of rabbit does fed diets supplemented with n-3 fatty acids. "Animal Reproduction Science", v. 146 (n. 3-4); pp. 202-209. ISSN 0378-4320. https://doi.org/10.1016/j.anireprosci.2014.02.021.

Description

Title: Reproductive long-term effects, endocrine response and fatty acid profile of rabbit does fed diets supplemented with n-3 fatty acids
Author/s:
  • Garcia Rebollar, Paloma
  • García García, R. M.
  • Arias Álvarez, María
  • Millán, P.
  • Rey, Ana Isabel
  • Rodríguez, M.
  • Formoso Rafferty, Nora
  • Riva, S. de la
  • Masdeu, M.
  • Lorenzo González, Pedro Luis
  • García Rebollar, Pilar
Item Type: Article
Título de Revista/Publicación: Animal Reproduction Science
Date: May 2014
ISSN: 0378-4320
Volume: 146
Subjects:
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Producción Agraria
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The effect of a diet enriched with polyunsaturated n -3 fatty acids (PUFA) on endocrine, reproductive, and productive responses of rabbit females and the litters has been studied. Nulliparous does ( n = 125) were fed ad libitum from rearing to second weaning two diets supplemented with different fat sources: 7.5 g/kg lard for the control diet (group C; n = 63) or 15 g/kg of a commercial supplement containing a 50% ether extract and 35% of total fatty acids (FAs) as PUFA n -3 (Group P; n = 62). Dietary treatments did not affect apparent digestibility coefficients of nutrients, or reproductive variables of does including milk pro- duction, mortality and average daily gain of kits over two lactations. However, on Day 5 and 7 post-induction of ovulation, progesterone of Group P tended to increase to a greater extent than in does of Group C. Total PUFAs, n -6 and n -3 and eicosapentanoic (EPA) contents were greater in adipose tissues of does in Group P than in Group C. Docosapentaenoic acid (DPA), EPA, and docosahexaenoic acid (DHA) concentrations were greater in peri-ovarian than in scapular fat with abdominal fat being intermediate in concentration. In PUFA sup- plemented does, kit mortality at the second parturition tended to be less than in control does. Also, kits born to does of the PUFA-supplemented group weighed more and were of greater length than from does of control group. In conclusion, effectiveness of dietary intervention on reproductive and performance response is greater in the second parity, which suggests an accumulative long-term beneficial effect of n -3 FA supplementation in reproductive rabbit does

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL2011-23822UnspecifiedUniversidad Politécnica de MadridMEJORA DEL RENDIMIENTO REPRODUCTIVO EN CONEJAS PRIMIPARAS SOMETIDAS A RITMOS EXTENSIVOS UTILIZANDO DIETAS RICAS EN ACIDOS GRASOS POLIINSATURADOS Y CONTROL DE LACTACION
Government of SpainS2009/AGR-1704UnspecifiedUnspecifiedNuevos sistemas de producción ganadera para maximizar la calidad de los productos cárnicos y el bienestar animal

More information

Item ID: 35782
DC Identifier: http://oa.upm.es/35782/
OAI Identifier: oai:oa.upm.es:35782
DOI: 10.1016/j.anireprosci.2014.02.021
Official URL: https://www.sciencedirect.com/science/article/pii/S0378432014000700?via%3Dihub#ack0005
Deposited by: Memoria Investigacion
Deposited on: 29 Jul 2015 11:30
Last Modified: 07 Jun 2019 07:52
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