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RiuNet. Repositorio institucional de la Universitat de Valencia (101.404 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.

World Rabbit Science

Mostrando recursos 1 - 20 de 1.017

  1. White lupin bran and its effects on the growth performance, carcass characteristics and digestibility of nutrients in fattening rabbits

    Uhlířová, Linda; Volek, Zdeněk; Marounek, Milan
    [EN] The purpose of the present study was to evaluate the effects of including white lupin bran (WLB) in a fattening rabbit diet on growth, carcass traits and nutrient digestibility. The C diet (control) based on alfalfa meal, whereas the WLB 5 and WLB 15 diets were based on white lupin bran (crude protein 152 g/kg, neutral detergent fibre 524 g/kg as-fed basis). The WLB 5 diet contained 50 g of white lupin bran/kg instead of 50 g of alfalfa meal/kg, whereas the WLB 15 diet contained 150 g of white lupin bran/kg, 5 g of soybean meal/kg and 10...

  2. Technical note: Estimation of real rabbit meat consumption in Italy

    Petracci, Massimiliano; Soglia, Francesca; Baldi, Giulia; Balzani, Laura; Mudalal, Samer; Cavani, Claudio
    [EN] As in other livestock species, the annual per capita consumption of rabbit meat is currently estimated as the ratio of the total weight of carcasses available for consumption to the number of inhabitants of a certain region. The aim of this work was to establish conversion coefficients from carcass to dible lean meat and estimate real rabbit meat consumption in Italy. Accordingly, a total of 24 rabbits were slaughtered at 2 different ages to obtain carcasses representative of the main market categories in Northern Italy: medium-size (carcass weight of about 1.4 kg) and heavy-size (carcass weight of about 1.8...

  3. Single nucleotide polymorphism of the growth hormone (GH) encoding gene in inbred and outbred domestic rabbits

    Hristova, Deyana Gencheva; Tanchev, S.G.; Velikov, K.P.; Gonchev, P.G.; Georgieva, S.J.
    [EN] Taking into consideration that the growth hormone (GH) gene in rabbits is a candidate for meat production, understanding the genetic diversity and variation in this locus is of particular relevance. The present study comprised 86 rabbits (Oryctolagus cuniculus) divided into 3 groups: New Zealand White (NZW) outbred rabbits; first-generation inbred rabbits (F1) and second-generation inbred rabbits (F2). They were analysed by polymerase chain reaction-based restriction fragment length polymorphism method. A 231 bp fragment of the polymorphic site of the GH gene was digested with Bsh1236 restriction enzyme. Single nucleotide polymorphisms for the studied GH locus corresponding to 3 genotypes...

  4. Preference of rabbit does among different nest materials

    Farkas, T.P.; Szendrő, Zs.; Matics, Zs.; Radnai, I.; Nagy, I.; Gerencsér, Zsolt
    [EN] Nest quality is important for the survival of new-born rabbits. Nesting material in rabbit farms generally consists of wood shavings, which is completely different from the dry grass used by the European wild rabbit (Oryctolagus cuniculus). The aim of the experiments was to examine which nest materials are preferred by rabbit does when building their nest. In experiment 1, the choice of multiparous rabbit does (n=37) among nest boxes bedded with different nesting materials was monitored. In each pen (1.0×1.83 m) 1 doe and 4 nest boxes (0.37×0.23×0.31 m) with different nest materials (meadow hay [H], wheat straw [S],...

  5. Population structure and phylogenetic analysis of laboratory rabbits in Taiwan based on microsatellite markers

    Lai, Fang-Yu; Ding, Shih-Torng; Tu, Po-An; Chen, R.S.; Lin, Der-Yuh; Lin, En-Cheng; Wang, Pei-Hwa
    [EN] Laboratory rabbits used in Taiwan are primarily supplied by the Livestock Research Institute (LRI) and the Animal Drugs Inspection Branch (ADIB) of the Animal Health Research Institute. An analysis of the genetic characteristics and structure of these populations would thus be a fundamental step in building a long-term management programme for maintaining stable animal quality and preserving the genetic variation among the populations. In this study, DNA samples were isolated from founders of 5 populations: New Zealand White rabbits (NZW) and Japanese White rabbits (JPN) from the ADIB, NZW and Rex rabbits (REX) from the LRI, and NZW from...

  6. Nutritive value of citrus co-products in rabbit feeding

    de Blas, J. Carlos; Ferrer, Pablo; Rodríguez, Carlos Alberto; Cerisuelo, Alba; García-Rebollar, Paloma; Calvet, Salvador; Farias, Carlos
    [EN] Pulps from different citrus fruits are relevant agro-industrial co-products in the Mediterranean area in terms of amounts produced and availability. Moreover, part of the product is dehydrated, which increases its interest in monogastric species such as rabbits. Seventy eight samples from various Spanish producers using several types of fresh fruits (orange, tangerine, lemon and pomelo) and different processing methods of orange and tangerine samples (either fresh or dried after adding Ca(OH)2) were analysed for their chemical composition and in vitro digestibility. Average dry matter (DM) contents of ash, neutral detergent fibre, acid detergent fibre, acid detergent lignin (ADL), soluble...

  7. In vitro caecal fermentation of carbohydrate-rich feedstuffs in rabbits as affected by substrate pre-digestion and donors' diet

    Ocasio-Vega, C.; Abad-Guamán, R.; Delgado, R.; Carabaño, R.; Carro, M.D.; García, Javier
    [EN] The influence of substrate pre-digestion and donors’ diet on in vitro caecal fermentation of different substrates in rabbits was investigated. Eight crossbreed rabbits were fed 2 experimental diets containing either low (LSF; 84.0 g/kg dry matter [DM]) or high soluble fibre (HSF; 130 g/kg DM) levels. In vitro incubations were conducted using batch cultures with soft faeces as inoculum and four fibrous or fibre-derived, low-starch and low-protein substrates: D-cellobiose (CEL), sugar beet pectin (PEC), sugar beet pulp (SBP) and wheat straw (WS). Substrates in half of the cultures were subjected to a 2-step pepsin/pancreatin in vitro digestion without filtration,...

  8. Growth performance and antioxidant status of growing rabbits fed on diets supplemented with Eucommia ulmoides leaves

    Li, Song; Zhao, Miaoqing; Jiang, Tingting; Lv, Wenwen; Gao, Shujuan; Zhou, Yufa; Miao, Zengmin
    [EN] The present study evaluated the effect of dietary Eucommia ulmoides leaves (EUL) on growth performance and antioxidant status of growing rabbits under heat stress condition. Four hundred and fifty weaned New Zealand male rabbits (6 wk old) were randomly divided into 3 equal groups (150 rabbits/group) and fed with a basal diet (control, digestible energy (DE): 15.92 MJ/kg and crude protein (CP): 19.24%) or the basal diet supplemented with 1 or 5 g of EUL/kg of diet (EUL1 and EUL5), in which the same quantity of barley meal was replaced. During the 21 d of experiment (43 to 63...

  9. Evaluation of the sensory attributes along rabbit loin by a trained panel

    Martínez-Álvaro, Marina; Hernández, Pilar
    [EN] The aim of this study was to evaluate and quantify variation in sensory attributes along the Longissimus dorsi (LD) muscle in rabbits. A descriptive analysis was performed by a panel of 8 assessors previously trained in the evaluation of rabbit meat. Reference standards used in training for the evaluation of rabbit meat are also described. Sensory attributes rabbit and liver odour, rabbit and liver flavour, toughness, juiciness and fibrousness were assessed in 56 rabbits from a divergent selection experiment for intramuscular fat (28 slaughtered at 9 wk and 28 slaughtered at 13 wk). Immediately after cooking, loins were cut...

  10. Effects of doe-litter separation on intestinal bacteria, immune response and morphology of suckling rabbits

    Zhang, Yukun; Cui, Hongxiao; Sun, Defa; Liu, Lihui; Xu, Xiurong
    [EN] Gut development is stimulated by exposure to microorganisms, especially early-life microbial exposure. This study aimed to investigate whether doe-litter separation, which is performed in many rabbit farms, affects this exposure and therefore inhibits the development of intestinal system in suckling rabbits. Immediately after parturition, Rex rabbit does (n=16) were adjusted to 8 kits per litter and divided into doe-litter separation (DLS) group and doe-litter together (DLT) group based on the conditions of the does. One healthy kit per litter was selected and sacrificed at 7 d, 14 d, 21 d and 28 d of age, and the number of...

  11. Effect of simplified feeding based only on wheat bran and brewer’s grain on rabbit performance and economic efficiency

    Harouz-Cherifi, Zakia; Kadi, S. A.; Mouhous, A.; Bannellier, C.; Berchiche, M.; Gidenne, T.
    [EN] Simplified diets are based on maximum incorporation of fodder and/or by-products into animal feed, thus minimizing the formulation and the costs. This study aimed to evaluate the possibility of feeding fattening rabbits with a simplified diet composed of only two agro-industrial by-products inexpensive and locally available: brewer’s grain and wheat bran. At weaning (35 days), 68 rabbits were divided into two identical groups (mean weight = 833 g) and housed in individual cages until slaughter (77 days). Each of the two groups (B0 and SF) was fed ad libitum either a commercial pelleted feed (control), or a simplified pelleted...

  12. Effect of light intensities on reproductive performance, nursing behaviour and preference of rabbit does

    Matics, Zs.; Szendrő, Zs.; Radnai, I.; Kasza, R.; Gerencsér, Zs.
    [EN] The aim of the experiment was to compare the reproductive performance and nursing behaviour of rabbit does reared under 2 different light intensities and observe the preference of does among cages with different light intensities. Female rabbits were randomly housed in 2 identical rooms, under the same housing conditions in wire-net cages. The 2 rooms only differed in the light intensity; group L: 150-200 lux (n=54 does, 230 inseminations), group D: 10-20 lux (n=54 does, 232 inseminations). Reproduction data from the first 5 consecutive reproductive cycles were evaluated. Nursing behaviour of the does (n = 24) was observed at...

  13. Dietary supplementation of Digestarom® herbal formulation: effect on apparent digestibility, faecal and caecal microbial counts and live performance of growing rabbits

    Celia, C.; Cullere, M.; Gerencsér, Zs.; Matics, Zs.; Giaccone, V.; Kovács, M.; Bónai, A.; Szendrő, Zs.; Dalle Zotte, A.
    [EN] The experiment aimed to study the effect of Digestarom® dietary inclusion (herbal formulation containing a mixture of essential oils, herbs, spices and extracts) on apparent digestibility and digestive ecosystem of growing rabbits, as well as the effects of its supplementation before and after weaning on growth performance. At kindling, rabbit does and litters were divided into 2 dietary groups (51 does/group) and fed either a control diet (C) or a diet supplemented with 300 mg Digestarom®/kg diet (D) until weaning, which occurred at 35 d (before weaning supplementation). Each group was further divided into 3 dietary groups: CC received...

  14. Effect of diet supplementation with live yeast (Saccharomyces cerevisiae) on performance of rabbit does and their progenies

    Belhassen, T.; Simon, E.; Potel, A.; Auclair, E.; Bergaoui, R.
    [EN] A study was conducted to determine the effect of live yeast supplementation in the diet of rabbit does on their mortality and reproductive performance and the performance of their progeny. A total of 52 cross-bred rabbit does (New Zealand×Californian) were divided into 2 groups differing in diet offered during 2 reproductive cycles and containing (group S; n=26) or not (group C; n=26) 1 g of yeast (Actisaf Sc 47, S.I. LESAFFRE, France)/kg of feed. Natural mating was performed 11 d after kindling and kits were weaned at 28 d of age. Body weight of litters was measured at birth,...

  15. An LPS based method to stimulate the inflammatory response in growing rabbits

    Knudsen, C.; Combes, S.; Mousavikhorshidi, H.; Oswald, I.; Gidenne, T. Noël
    [EN] Reliable indicators are needed to study the relationship between the inflammatory response of the growing rabbit and breeding factors such as feeding practices. A lipopolysaccharide (LPS) stimulation of the inflammatory response is a valid model of bacterial infection in laboratory animals, but no data on the growing rabbit has yet been obtained. The aim of our study was to determine an adequate dose of LPS to inject in growing rabbits in order to elicit a measurable inflammatory response in terms of plasmatic TNF-α and rise in rectal temperature. Three trials were carried out in this study: 2 development trials,...

  16. Wild rabbit restocking: Suitable acclimation conditions foster adaptive behaviour and improve survival of captive reared rabbits

    Machado, R. D.; Magalhães, P.; Godinho, S.; Santos, P.
    [EN] Wild rabbit is a very important species in the Mediterranean region. Its relevance is both ecological, being a keystone species —prey for several predators— and economic, as it is the most important and the most managed small game species among mammals in the Iberian Peninsula. Although both researchers and game managers claim restocking operations have moderate to low success, it is still one of the management measures often used by conservationists and hunters to recover or boost wild rabbit populations. The high mortality usually verified in the first days after release is the main limiting factor in rabbit restocking....

  17. Technical note: Influence of feed on image quality of abdominal ultrasonography in New Zealand white kits

    Silva, K. G.; Andrade, C.; Costa, L. B.; Sotomaior, C. S.
    [EN] The aim of this study was to evaluate the influence of feed change on image quality of ultrasound scanning of the gallbladder, kidney and jejunum in New Zealand White kits. Thirty-nine 35-day-old rabbits were used, distributed into 4 diet groups: C, only commercial feed; CH, commercial feed and hay; C24H, only commercial feed, replaced by hay 24 h before examination; and CH24H, commercial feed and hay, with the commercial feed withdrawn 24 h before the exam. The rabbits received the diet for 42 d (from 35 to 77 d of age) and the ultrasound evaluations were performed on days...

  18. Qualitative improvement of rabbit burgers using Zingiber officinale Roscoe powder

    Mancini, S.; Preziuso, G.; Fratini, F.; Torracca, B.; Nuvoloni, R.; Dal Bosco, A.; Paci, G.
    [EN] The object of this study was to evaluate the effect of Zingiber officinale powder on physical-chemical traits, microbiological growth and sensory properties of rabbit burger. Raw burgers (only meat and meat added with 1 and 2% w/w ginger powder) were stored at 4°C for 1, 4 and 7 d and then cooked. Ginger modified the colour of both raw and cooked burgers, leading to more yellow hue and reducing lightness. Aspect of burgers were affected by ginger powder addition, leading to a noticeable difference between the samples. During storage time, the highest modifications were recorded for control samples, followed...

  19. Mass transfer dynamics during brining of rabbit meat

    Wang, Z.; He, Z.; Li, H.
    [EN] As a traditional processing method, brining is a preliminary, critical and even essential process for many traditional rabbit meat products in China. The aim of this work was to investigate mass transfer of rabbit meat brined in different salt concentration. Rabbit meat (Longissimus dorsi) was brined for 24 h in 5 brine solutions (5, 10, 15, 20 and 25% NaCl [w/w]). Results indicated that mass transfer and kinetics parameters were significantly affected by the brine concentration during brining. When brine concentration increased, the total and water weight changes decreased, whereas the sodium chloride weight changes increased. Higher brine concentrations...

  20. Investigation of significant microRNA-mRNA pairs associated with nonspecific digestive disorder in rabbits

    Jia, X.; Liao, Q.; Chen, S.; Wang, J.; Lai, S.
    [EN] Nonspecific digestive disorders (NSDD) are one of the major intestinal problems in rabbit, with considerable economic losses in industrial rabbit farms. MicroRNAs (miRNAs), as small non-coding RNAs, have significant biological involvement in intestinal disorders. In this study, we investigated the expression levels of 25 genes and 25 miRNAs in ileum, rabbit sacculus rotundus (RSR) and colon tissues from 9 rabbits with different severity of NSDD. These molecules have been found to be related to NSDD or inflammatory bowel disease, which will help recognise the miRNA-mRNA pairs. Finally, 108 possible pairs of miRNA-mRNA pairs with an anti-correlation were identified by...

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