Recursos de colección

RiuNet. Repositorio institucional de la Universitat de Valencia (102.815 recursos)

RiuNet es el Repositorio Institucional de la Universitat Politècnica de València, gestionado por la Biblioteca, cuyo objetivo es ofrecer acceso en Internet a la producción científica, académica y corporativa de la comunidad universitaria con la finalidad de aumentar su visibilidad y hacerla accesible y preservable.

Mostrando recursos 1 - 7 de 7

  1. Short communication: Assessment of activity patterns of growing rabbits in a flux-controlled chamber

    Olivas, Irene; RODRÍGUEZ LATORRE, ANDRÉS RAFAEL; Estellés Barber, Fernando; Calvet Sanz, Salvador; Villagrá, Arantxa
    [EN] Flux-controlled and metabolic chambers are often used for nutritional and environmental studies. However, the potential alterations of animal behaviour and welfare are so far not fully understood. In consequence, this study had 2 main objectives: to assess potential alterations of animal activity pattern and time budget inside a flux chamber, and to assess the importance of the "rearing up" behaviour. To this end, 10 growing rabbits of different ages (from 1 to 5 wk of the growing period) were housed inside a flux chamber. Their activity was continuously recorded and assessed, determining the frequency and duration of 8 different...

  2. Reproductive performance of male rabbits of algerian local population

    Cherfaoui, DJ.; Theau-Clement, M.; Zerrouki, N.; Berchiche, M.
    [EN] A total of 267 rabbit does and 46 bucks from a local Algerian population were controlled during 6 generations (from G0 to G5) at the experimental farm of the University of Tizi-Ouzou. Natural mating was used and 1412 presentations were analysed. Reproductive and growing performance were analysedtaking into account the effect of the buck, its age, the generation, the season of mating (or kindling) and the physiological status of does at the moment of the mating. The buck influenced the acceptance rate(P<0.001), kindling rate (P=0.032), litter size at birth and at weaning (P<0.001), litter weight at birth (P<0.001)and at...

  3. Oocyst excretion pattern of three intestinal Eimeria species in female rabbits

    Papeschi, Cristiano; Fichi, Gianluca; Perrucci, Stefania
    [EN] The dynamic change in faecal Eimeria oocyst excretion was evaluated in 10 naturally infected female rabbits, starting from their weaning at 33 d of age until about 1 mo after their second parturition. Faecal samples collected from examined animals were quali-quantitatively analysed to evaluate presence and number of Eimeria oocysts. In addition, isolated Eimeria oocysts were identified at the species level following sporulation. Animals were found to be infected by Eimeria perforans, Eimeria exigua and Eimeria magna and shed Eimeria oocysts after weaning and after parturition. In particular, at 33 d of age all female rabbits examined were negative,...

  4. NIRS of body and tissues in growing rabbits fed diets with different fat sources and supplemented with Curcuma longa

    Peiretti, Pier Giorgio; Meineri, Giorgia; Masoero, Giorgio
    [EN] A portable Near Infrared Reflectance Spectroscopy (NIRS) instrument was applied to 40 growing rabbits to determine body and tissue differences induced by experimental factors. The rabbits were examined at 2 live sites, in 7 warm carcass tissues and in longissimus dorsi muscle samples prepared in ethanol. For this purpose, the method was applied in a bi-factorial experiment concerning the dietary oil source (O) (maize vs. palm oil) and Curcuma longa (C) supplementation (0 and 3 g/kg, respectively). Significant chemical differences emerged for palmitic, oleic and linoleic acids in the longissimus dorsi muscle due to the O factor and for...

  5. Breeding programmes to improve male reproductive performance and efficiency of insemination dose production in paternal lines: feasibility and limitations

    Piles, Miriam; Tusell, L.; Lavara García, Raquel; Baselga Izquierdo, Manuel
    [EN] This paper aims at reviewing the current genetic knowledge of the issues related to the efficient use of bucks in artificial insemination (AI). Differences between lines have been found relevant in semen production and quality traits not necessarily related to their specialization as maternal or paternal lines. Accurate heritability estimates indicate that genetic selection for increasing semen production by improving male libido and reducing the number of rejected ejaculates may not be effective. However, total sperm produced per ejaculate appears to be as an interesting trait to select for, despite that genetic correlation between ejaculate volume and sperm concentration...

  6. Analysis of production and reproduction performances of Soviet Chinchilla and White Giant rabbits in tropical climatic conditions of India

    Sivakumar, K.; Thiruvenkadan, A.K.; Ramesh Saravana Kumar, V.; Muralidharan, J.; Anandha Prakash Singh, D.; Saravanan, R.; Jeyakumar, M.
    [EN] The aim of the present study was to analyse the influence of year, season and parity on productive and reproductive performances in 110 Soviet Chinchilla and 64 White Giant rabbits under tropical climatic conditions of Tamil Nadu in the period between 2005 and 2009. A total of 731 records for the overall leastsquares means for litter size at birth and weaning, litter weight at birth and weaning, average weight of kit at birth and weaning and pre-weaning growth rate in Soviet Chinchilla rabbits were 5.1±0.1, 3.7±0.1, 256.4±6.9 g, 2465.4±73.6 g, 50.4±0.7 g, 694.1±13.1 g and 15.3±0.3 g/d, respectively, and...

  7. Abstracts of the "GIORNATE DI CONIGLICOLTURA ASIC 2013"

    [EN] On the 10 and 11 of April, in Forlì (Italy) it was held the 5th edition of the Italian Rabbit Days, product of the collaboration among ASIC (Italian Rabbit Scientific Association), ASPA (Animal Production Scientific Association) and the Forlì Fair. The 1st day included a round table focused on "Which future for italian rabbit faming?". During the 2nd day, there were presented 2 main lectures "Resources allocation in reproductive rabbit does: genetic strategies for a suitable performance", by Pascual J.J., Savietto D., Cervera C., Baselga M. and "Controlling the rabbit digestive ecosystem to improve digestive health and efficacy", by Combes...

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