1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Detalles del recurso

Descripción

[EN] Young rabbit females selected for growth rate can have nutritional needs which may not be met by the common practice of feed restriction during rearing in commercial rabbit production. The aim of this study was to analyse the effect of two different feeding programmes: restricted and ad libitum feeding, applied in young rabbit females for one month at the end of rearing, on reproductive performance, body condition and circulating metabolic hormones and metabolites in a rabbit line selected by growth rate in 3 consecutive reproductive cycles. Thus, twenty-four 16-week-old does were randomly assigned to a group in which the daily recommended nutrient intakes were satisfied (fed restricted: 130 g/day, n=13) or a group fed to satiety (ad libitum: 235.5 g/day, n=11) during one month. Then, all does were inseminated in 3 consecutive cycles using a 42-day reproductive cycle. Measurements of does’ body weight, perirenal fat thickness and plasma leptin, non-esterified-fatty-acids (NEFA), beta-hydroxybutyrate (BOHB) and fructosamine were performed at artificial insemination (AI), parturition and weaning time in 3 consecutive cycles. Reproductive performance of does was evaluated based on fertility, litter size at parturition, prolificacy and productivity. Differences in body weight were found only in the 1st cycle, ad libitum fed females being heavier than restricted ones. Nevertheless, body weight variances disappeared in later cycles. No differences were found in perirenal fat thickness. Finally, in ad libitum fed females slight differences were found in plasma levels of NEFAs (452 vs. 258 μekv/L and 527 vs. 306 μekv/L for 1st and 2nd cycles) and BOHB (0.26 vs. 0.03 mM for 2nd cycle), but disappeared in the 3rd reproductive cycle. Fertility, prolificacy and productivity was not significantly affected by the feeding programme. Nevertheless, total litter size showed to be higher in ad libitum fed females at second parturition (8.7 vs. 5.9 kits). Therefore, the evaluated feeding programmes until first AI in females selected by growth rate had no effect on their reproductive outcomes, as the global reproductive performance was not affected.

Pertenece a

RiuNet. Repositorio institucional de la Universitat de Valencia  

Autor(es)

Naturil -  Alfonso, C. -  Marco -  Jiménez, F. -  Pascual, J.J. -  Vicente, J.S. - 

Id.: 70827986

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveFeeding regimen - 

Tipo de recurso: info:eu-repo/semantics/article  -  info:eu repo/semantics/publishedVersion  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Reserva de todos los derechos

Requerimientos técnicos:  Browser: Any - 

Relación: [References] CICYT/AGL2014- 53405-C2-1-P
[References] GV/VALi+d/ACIF/2013/296
[References] World Rabbit Science
[References] https://doi.org/10.4995/wrs.2017.6848

Fecha de contribución: 24-ene-2018

Contacto:

Localización:
* 1257-5011
* 10.4995/wrs.2017.6848
* 1989-8886

Otros recursos de la mismacolección

  1. La mayoría de edad como requisito para la rectificación registral del sexo y el nombre: una cuestión de derechos fundamentales [EN] Constitutional transcendence of the requirement of majority for the recognition of the right to...
  2. La educación de los sordos de la exclusión a la inclusión [EN] The education of deaf students normally begins to be studied from Ponce de Leon in a monastery ...
  3. Infancias Ignoradas. Hijos e Hijas de Mujeres Víctimas de Violencia en situación de Refugio [EN] In México, in 1990’s it was create the first refuges for women victims of violence in order to ...
  4. Imaginario del bullying y su vinculación a los servicios sociales. Voces desde futuros docentes de Educación Primaria [EN] The article presents a study on bullying and cyberbullying from social work and from Social Ser...
  5. El acoso escolar como forma de violencia en la enseñanza secundaria, una visión legal del problema [EN] A psychological analysis of attitudes before school violence is done. As we know "bullying" in ...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.