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

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World Rabbit Science

Mostrando recursos 181 - 200 de 1.026

  1. Short communication: Influence of vitamins C and E on sperm motility of rabbit bucks

    Najjar Ben Maâtoug, Amel; Ben Saïd, S.; Najjar, T.; Kalamoun, S.; Ben Khalifa, N.; Ben Aïchae, E.; Ben Mrad, M.
    [EN] The objective of the study is to investigate the effect of vitamin C and E supplementation on rabbit sperm motility. Forty INAT breed bucks aged 8.5 mo were divided into 2 groups: control group (C) and treated group (T) receiving vitamins C (1 g/L) and E (1 g/L) incorporated in the drinking water. Semen was collected using an artificial vagina over 6 wk (C, total ejaculates=81; T, total ejaculates=76). The massal motility (MM) was evaluated in the fresh and raw semen. Then, the individual motility at 0 (IM0), 2 (IM2) and 4 h (IM4) after semen collection was determined...

  2. Pomegranate peel as a natural antioxidant boosts bucks' fertility under Egyptian summer conditions

    Zeweil, Hassan S.; Elnagar, Samar; Zahran, Soliman M.; Ahmed, Mohamed H.; El-Gindy, Yassmine
    [EN] Exposure of male rabbits to heat stress during summer adversely affects their fertility, leading to major production losses. A total of 16 male rabbits were randomly divided into 4 experimental groups exposed to temperatures ranging from a high of 30.3 to a low of 27.3 °C. Animals from first to fourth groups were fed diets containing 0, 1.5, 3.0, or 4.5% pomegranate peel (PP) to evaluate the ability of PP feeding to enhance bucks¿ reproductive status. Pomegranate peel treatments significantly increased ejaculate volume by 19, 18 and 12%, increased seminal plasma fructose by 7, 18, and 24%, improved sperm...

  3. Meat quality of rabbits reared with two different feeding strategies: with or without fresh alfalfa ad libitum

    Capra, Gustavo; Martínez, Rosana; Fradiletti, Florenca; Cozzano, Sonia; Repiso, Luis; Márquez, Rosa; Ibáñez, Facundo
    [EN] The aim of this study was to evaluate production performance, carcass characteristics and nutritive value of meat of rabbits reared under the 2 prevailing feeding strategies in Uruguay. One week after weaning, 96 purebred V line rabbits were randomly distributed between 2 treatments: (T1) commercial pelleted food ad libitum and (T2) commercial pelleted food ad libitum plus fresh alfalfa ad libitum. Each treatment included 12 cages containing 4 individuals each (2 males and 2 females). Growth performance characteristics (live weight evolution, commercial food consumption and food/gain ratio) were evaluated. The consumption of alfalfa was not measured. Rabbits were slaughtered...

  4. Effect of a diet containing white lupin hulls (Lupinus albus cv. Amiga) on total tract apparent digestibility of nutrients and growth performance of rabbits

    Volek, Zdenek; Volková, Lenka; Marounek, Milan
    [EN] The objective of this study was to evaluate the effect of the inclusion of white lupin hulls in a rabbit diet on the digestibility of nutrients and growth performance. Two experimental diets were formulated: C [control: 168 g crude protein (CP) and 409 g neutral detergent fibre (NDF)/kg) and WLH diet (substituting 100 g wheat bran by 50 g barley and 50 g white lupin hulls/kg: 162 g CP and 391 g NDF/kg). A total of 24 weaned rabbits were individually housed, randomly allocated to 2 groups and fed one of the 2 experimental diets from 31 to 73...

  5. Abstracts of the "XXXVII Symposium de Cunicultura de ASESCU". Barbastro (Spain) 24-25th of May 2012.


    [EN] The annual Congress of the Spanish Association of Cuniculture (ASESCU) was held in Barbastro (province of Huesca, autonomous community of Aragón) on 24-25th May of 2012. The 37th edition was mainly devoted to analyse the present situation of the rabbit sector, as well as some new aspects in relation to diseases of the rabbit. It was presented an overview of the situation of the rabbit farming in Aragón, a commercial analysis of the rabbit farming sector in Spain, a main paper on the role of rural development as a complement to rabbit farming, and an analysis of the production...

  6. A meta-analysis on the role of soluble fibre in diets for growing rabbits

    Trocino, Angela; García Alonso, Javier; Carabaño, Rosa; Xiccato, Gerolamo
    [EN] In this review, the methods used to measure fibre and soluble fibre fractions are briefly presented and the effects of the soluble fibre content in diets for growing rabbits reviewed by a meta-analysis of studies available in literature, with the aim of elucidating the relationships with other dietary nutrients. Soluble fibre was assumed as the difference between total dietary fibre (TDF) and neutral detergent fibre (NDF), as it is simple to obtain and has been measured in numerous studies. Dietary soluble fibre content affects the digestive utilisation of soluble and insoluble fibre fractions and its increase is associated with...

  7. Sodium butyrate in growing and fattening diets for early-weaned rabbits

    Ribeiro, Joana; Gaspar, Sandra; Pinho, Mário; Freire, João P. B.; Falcão-e-Cunha, Luisa
    [EN] To study the effect of adding coated sodium butyrate (SB) to growing-fattening rabbit diets, 2 trials were conducted. In trial 1, 180 rabbits were housed in pairs and fattened from 23 (weaning) to 63 d of age to evaluate their zootechnical performance. Trial 2 involved 30 rabbits, from 23 to 37 d of age and housed individually in digestibility cages, to evaluate digestibility, caecal fermentative activity and morphology of the intestinal mucosa. In both trials rabbits were randomly divided into 2 groups, each receiving one of the following diets: control diet [CTR, 360 g neutral detergent fibre (NDF) and...

  8. Nutritive value of sun-dried Pueraria Phaseoloides for rabbits under tropical conditions

    Akoutey, A.; Kpodekon, Marc T.; Bannelier, Carolle; Gidenne, Thierry
    [EN] The nutritive value of Pueraria phaseoloides (whole plant, full fruit stage, sun-dried) for the growing rabbit was studied by comparing diets containing an increasing incorporation of Pueraria (0 to 40%) in substitution to a basal mixture. The crude protein (CP) concentration of Pueraria was 17.6 % dry matter (DM), while neutral detergent fibre (NDF) and acid detergent fibre were 51 and 39%, respectively. A basal diet was formulated (51.1% NDF and 19.9% CP, on DM basis) and pelleted. Another 2 diets were obtained through substitution of 20 and 40% of basal diet by Pueraria. Faecal digestibility was measured between...

  9. Normal values of haematological and some biochemical parameters in serum and urine of New Zealand White rabbits

    Özkan, Cumali; Kaya, Abdullah; Akgül, Yakup
    [EN] The purpose of the present study was to define the normal haematologic values and some biochemical parameters in serum and in urine in both male and female New Zealand white rabbits and to determine the effect of gender on these parameters. Blood and urine samples from a total of 40 New Zealand white rabbits were investigated. The haematologic parameters were determined in whole blood samples, while serum and urine (urine protein, glucose, creatinine, urea, GGT, nitrite, Na, K, Cl, creatinine clearance) biochemical parameters were determined in serum and urine samples. Normal values of these parameters were determined and statistical...

  10. Morphology, chemical composition, and bacterial concentration of airborne particulate matter in rabbit farms

    Adell Sales, Elisa; Estellés Barber, Fernando; Torres, Antonio G.; Cambra López, María
    [EN] Livestock houses are major sources of airborne particulate matter (PM), which can originate from manure, feed, feathers, skin and bedding and may contain and transport microorganisms. Improved knowledge of particle size, morphology, chemical and microbiological composition of PM in livestock houses can help identify major sources of PM and contribute to the development of appropriate source- specific reduction techniques. In rabbit production systems, however, there is limited information on specific particle characteristics. The objective of this study was to characterise airborne PM in rabbit farms in terms of morphology, chemical compositions and bacterial concentration in different size fractions. Size-fractioned PM...

  11. Description of nestbox visits and suckling events in a group housing system for rabbit does as compared to individual cages

    Rommers, Jorine M.; Kemp, Bas; Houwers, H.W.; Gunnink, Henk; de Jong, Ingrid C.
    [EN] Research was conducted to study nursing associated events of lactating rabbit does. Nest box visits and suckling events were investigated using 6 group pens (8 does/pen) and 12 enriched individual cages. Each group pen and individual cage was observed by video for one day per week until weaning at 35 d of lactation, with exception of the third week of lactation. In the first 2 wk of lactation, videotapes were analysed for the frequency and duration of nest box visits per day. The fourth and fifth week of lactation, suckling events on the floor of the group pens and...

  12. Characteristics of Staphylococcus aureus isolated from acute, sub-acute and sub-clinical staphylococcosis in rabbits

    Tirpude, Rajeshkumar J.; Batra, H.V.
    [EN] Staphylococcus aureus bacteria isolated from different clinical presentations of staphylococcosis in rabbits were examined for the production of various virulence factors using biochemical and immunological tests. In the total of 106 S. aureus isolates; toxic shock syndrome toxin-1, staphylococcal enterotoxin-C, DNase, ¿-haemolysin, ß-haemolysin, ¿-haemolysin, protein A and clumping factor were observed with a frequency of 33.2, 16.98, 83.96, 69.81, 36.79, 100, 78.30 and 54.72 percent, respectively. No SE-A, SE-B and SE-D producing isolates were recovered in this study. All the S. aureus isolates from acute staphylococcosis produced TSST-1, SE-C and protein A. While ¿¿haemolysin and clumping factor were not...

  13. Activity of diclazuril against coccidiosis in growing rabbits: experimental and field experiences

    Vereecken, Monita; Lavazza, A.; De Gussem, K.; Chiari, M.; Tittarelli, C.; Zuffellato, A.; Maertens, Luc
    [EN] The efficacy of diclazuril in growing rabbits was investigated under experimental and field conditions. In a first experimental trial, the susceptibility of recent isolated French Eimeria field strains to in-feed use of diclazuril, salinomycin and robenidine was studied in fattening rabbits. Rabbits were challenged at the age of 31 d with a mixed inoculum of Eimeria magna, E. media and E. perforans. Production data and oocyst excretion were compared with an infected-untreated control group and an uninfected-untreated control group. Infection resulted in significantly lower production data and higher oocyst excretion in the infected-untreated control group. Salinomycin and diclazuril treated...

  14. The influence of porcine prophenin on neutrophils isolated from rabbit blood during implantation of calcium sulphate graft material into bone tissue

    Wessely-Szponder, Joanna; Bobowiec, Ryszard; Szponder, Tomasz
    [EN] Immune dysfunction induced by surgical trauma may comprise either an inappropriately exaggerated inflammatory response or a profound suppression of cell- mediated immunity. Neutrophils are the leading cells in the first response to trauma. It is known that they mediate initial resistance to bacterial infection. Activated neutrophils can degranulate and release some enzymes such as elastase and myeloperoxidase (MPO). The function of elastase is, among others, to kill bacterial, whereas MPO is a specific enzyme of primary granules of neutrophils and a marker of in vivo neutrophil activation. Previous reports estimated that some cathelicidins could act to increase or diminish...

  15. Perceptions among university students in Seville (Spain) of the rabbit as livestock and as a companion animal

    González-Redondo, Pedro; Contreras-Chacón, Gema M.
    [EN] The rabbit has various utilities and roles, mainly as a meat-producing animal, game species, companion animal, laboratory animal or pest. Among these roles, rabbit breeding for meat has traditionally prevailed in the Mediterranean countries. However, in recent decades the practice of keeping this species as a companion animal has been on the rise; a factor that could be changing public perception of the rabbit. A survey of 492 university students from Seville, Andalusia, Spain, was conducted to determine young people's perceptions of the rabbit as livestock and as a companion species. The rabbit received the lowest score when regarded...

  16. Letter from the editor in chief. World Rabbit Science: Evolution 2008-2012 and new features for 2013

    Pascual Amorós, Juan José
    [EN] In the last meeting of the World Rabbit Science Association held in the setting of the 10th World Rabbit Congress (Sept 5, 2012) at Sharm El-Sheikh (Egypt), the Editor-in-chief of the World Rabbit Science presented the last news about the evolution of the journal in the last 4 years and some novelties for the next year that are worth to spread within the subscribers of the World Rabbit Science. Journal Citation Reports¿ has recently published the indexes for 2011 of the journals included in this source of citation data. As you know, World Rabbit Science is included in the category...

  17. Hair cortisol levels determined at different body sites in the New Zealand White rabbit

    Comin, Antonella; Zufferli, Valentina; Peric, Tanja; Canavese, Federico; Barbetta, Davide; Prandi, Alberto
    [EN] This study was designed to determine hair cortisol levels in the New Zealand White (NZW) rabbit and to examine possible differences in the cortisol levels of hair samples collected from different body regions in stable environmental conditions. The experiment was performed on eight 18 month-old female NZW rabbits. All animals were shaved to collect hair samples from 26 different body regions. Hair cortisol levels were determined by the RIA method. The mean hair cortisol concentration for the 26 samples in the 8 animals was 2.12±0.05 pg/mg (mean±standard error). This study reveals individual hair cortisol distributions in the 8 animals...

  18. Effect of lycopene supplementation on semen quality and reproductive performance in rabbit

    Mangiagalli, M.G.; Cesari, Valentina; Cerolini, S.; Luzi, Fabio; Toschi, I.
    [EN] A total of 18 hybrid strain Martini male rabbits were randomly divided into three experimental groups. The animals in the first and second groups drank water with 0.1 and 0.5 g/l of lycopene addition (B and C groups, respectively), while water without any supplement was administered to the control group rabbits (A group) for 8 weeks. Semen was collected from 18 bucks (6 animals/group) for 5 consecutive weeks. Ejaculate volume was determined by graduated test tube and sperm concentration was calculated by Neubauer chamber. Sperm motility was evaluated subjectively by a phase contrast microscope and forward progressive motility (FPM)...

  19. Digestive efficiency in rabbit does according to environment and genetic type

    Savietto, Davi; Blas Ferrer, Enrique; Cervera Fras, Mª Concepción; Baselga Izquierdo, Manuel; Friggens, Nicolas C.; Larsen, Torben; Pascual Amorós, Juan José
    Ninety lactating rabbit does of three different genetic types [2 from a line differentiating 20 generations by selection for litter size at weaning (lines V16 and V36) and 1 from a line founded under reproductive longevity criteria and then selected by litter size at weaning (line LP)] were subjected to three environmental conditions: NC, females housed under normal conditions (14 to 20oC) and fed with a control diet (333 g NDF/kg DM); HC, females housed under heat conditions (25 to 35oC) and fed with the control diet; or NF, females housed under normal conditions and fed with a fibrous diet...

  20. Digestive efficiency in rabbit does according to environment and genetic type

    Savietto, Davi; Blas Ferrer, Enrique; Cervera Fras, Mª Concepción; Baselga Izquierdo, Manuel; Friggens, Nicolas C.; Larsen, Torben; Pascual Amorós, Juan José
    [EN] Ninety lactating rabbit does of three different genetic types [2 from a line differentiating 20 generations by selection for litter size at weaning (lines V16 and V36) and 1 from a line founded under reproductive longevity criteria and then selected by litter size at weaning (line LP)] were subjected to three environmental conditions: NC, females housed under normal conditions (14 to 20oC) and fed with a control diet (333 g NDF/kg DM); HC, females housed under heat conditions (25 to 35oC) and fed with the control diet; or NF, females housed under normal conditions and fed with a fibrous...

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