World Rabbit Science - Vol. 20 (3)-2012https://riunet.upv.es:443/handle/10251/173522024-03-28T11:48:58Z2024-03-28T11:48:58ZABSTRACTS OF THE "GIORNATE DI CONIGLICOLTURA ASIC 2011"https://riunet.upv.es:443/handle/10251/174382023-11-21T11:52:11Z2012-10-05T11:59:42ZABSTRACTS OF THE "GIORNATE DI CONIGLICOLTURA ASIC 2011"
[EN] The fourth edition of the Italian Rabbit Days was held in Forlì (Italy) on April 8-9, 2011, organized by ASIC (Italian Rabbit Scientific Association) in collaboration with Dipartimento di Scienze degli Alimenti (Università di Bologna), Dipartimento di Scienze Animali (Università di Padova), Fondazione Iniziative Zooprofilattiche e Zootecniche (Brescia), ASPA (Animal Production Scientific Association) and the Forli Fair.
The first day included three invited lectures: ¿Feed restriction strategies, implications on physiology, growth and health of the growing rabbit¿, presented by T. Gidenne, L. Fortun-Lamothe, S. Combes; ¿Ovulation induction in rabbit does: a review¿, presented by A. Dal Bosco; ¿Factors affecting efficacy of intravaginal administration of GnRH analogues for ovulation induction in rabbit does¿ presented by P.G. Rebollar. In addition, three sessions of oral communications on Reproduction and Genetics, Nutrition and Physiology, Welfare, Management, and Pathology were held.
During the second day it was presented a round table focused on ¿Management and use of drugs and vaccines in rabbit production¿. Finally a Poster Session was through the two days.
The meeting was attended by more than 100 participants, including researchers and technicians from France, Spain, Hungary, Belgium and Switzerland. A total of 3 invited papers, 14 oral communications and 16 posters were presented during the congress. Following the abstracts of all contributions are reported.
2012-10-05T11:59:42ZAbstracts of the XXXVI Symposium de cunicultura de ASESCU, 2011https://riunet.upv.es:443/handle/10251/174372023-11-21T11:52:11Z2012-10-05T11:57:36ZAbstracts of the XXXVI Symposium de cunicultura de ASESCU, 2011
[EN] The annual Congress of the Spanish Association of Cuniculture (ASESCU) was held in Peñíscola (province of Castellón, autonomous community of Valence) on 12-13th May of 2011. The 36th edition was devoted to analyse the actual situation of the rabbit sector. It was presented an overview of the situation of the rabbit farming in the province of Castellón, an analysis of the factors that determine the final price of the rabbit meat in the market. Moreover, a special session devoted to the rabbit farmers studied the environmental control in the farms and the main factors influencing the profitability in the rabbit farming. Main papers related to coccidiosis, mixomatosis and, and a summary of the norm extension carried out by the Spanish Rabbit Interprofessional (INTERCUN) were also presented in three different conferences. Furthermore, a total of 32 communications were presented in seven working sessions. Nutrition session analysed diet digestibility in lactating does, the increasing of soluble fibre and starch in diets for growing rabbits, the effect of a feed restriction in fattening rabbits, pre-weaning feeding management of growing rabbits and does, the inclusion of palm kernel meal in diets for growing rabbits, and the digestibility of Lablab purpureus and Stizolobium niveum. Technico-economic management session studied concepts for improving profitability of farms. Genetics session evaluated several maternal lines and cross does for longevity, and studied doe genetic origin, environmental conditions during lactation and kit survival during the fattening period. Ethology session analysed aggressiveness in breeding does, the effect of type of cage on does behaviour, and evaluated sampling techniques for assessing does behaviour. Reproduction and Body Composition session studied several aspects related to the body composition of does, the application of biolectrical impedance for its assessment, the effect of different treatments of ovulation induction, and the relation between the performance of the does and plasma concentration of non-esterified fatty acids. Carcass Quality session analysed the prediction of intramuscular fat and fatty acid content in rabbit meat by near infrared spectroscopy, the nutritional quality of rabbit meat fed with a feed enriched in Omega 3, risk factors related to rabbit digestive pathologies on carcass classification, the anatomical assessment and meat quality, and prediction of rabbit carcass composition using visual image analysis. Pathology section studied the use of the Pheneplate System for autovaccine design, the effect of heat stress on the immune system of rabbit does, the characterization of nasal carried Staphylococcus aureus strains, the pharmacokinetic of marbofloxacin and several fluoroquinolones, and the development of a subunit vaccine against rabbit hemorrhagic disease virus.
2012-10-05T11:57:36ZDigestive efficiency in rabbit does according to environment and genetic typeSavietto, DaviBlas Ferrer, EnriqueCervera Fras, Mª ConcepciónBaselga Izquierdo, ManuelFriggens, Nicolas C.Larsen, TorbenPascual Amorós, Juan Joséhttps://riunet.upv.es:443/handle/10251/174362023-11-21T11:52:11Z2012-10-05T11:55:07ZDigestive 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 diet (443 g NDF/kg DM). The apparent digestible coefficients of dry matter (DMd), organic matter, crude protein (CPd), gross energy, NDF (NDFd) and acid detergent fibre, as well as the daily intake of dry matter (DM), digestible protein (DP) and digestible energy (DE), were determined (14 to 18 d post-partum). The environment affected all variables analysed. In general, heat conditions reduced the daily feed intake (around -30%; P<0.05) and increased main apparent digestible coefficients (+4.5 percentage points for DMd). In contrast, the use of a fibrous diet led to lower DE intake (-217 kJ/d; P<0.05) and main apparent digestibility coefficients (-13.5 percentage points for DMd). Females from line V, regardless of generation, showed lower daily DM intake (-19.2 g/d; P<0.05) and NDFd (-1.5 percentage points; P<0.05) than line LP. Interactions between genetic type and environment were found for daily DM intake, NDFd and CPd. When receiving fibrous diet, LP females showed a higher increment in daily DM intake (65.6 g/d; P<0.05) than V36 females, compared to control. Under heat conditions, NDFd obtained for LP females were higher to those in normal conditions (+3.14 percentage points), while V females showed similar NDFd. In addition, the increase in CPd observed under heat conditions was higher for LP (+9.87 percentage points) and V36 (+8.74 percentage points) than V16 females (+3.84 percentage points). In conclusion, rabbit females from a line founded for reproductive longevity seem to show a higher flexibility in their digestive capacity under constrained conditions.
2012-10-05T11:55:07ZEffect of lycopene supplementation on semen quality and reproductive performance in rabbitMangiagalli, M.G.Cesari, ValentinaCerolini, S.Luzi, FabioToschi, I.https://riunet.upv.es:443/handle/10251/174272023-11-21T11:52:11Z2012-10-05T11:10:30ZEffect 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) scored 1¿4 (low-high). Sperm viability was assessed by nigrosin/eosin (N/E) staining procedure. At the end of the semen evaluation period, 20 females per group were inseminated on day 11 post partum with a pool of semen collected from each experimental group. Data showed that the highest level of lycopene (C group) resulted in a significantly greater volume of ejaculate and total number of sperm than in the control group (0.98 vs. 0.78 ml and 364 vs. 227, P<0.05), while sperm concentration was not affected. Lycopene addition did not significantly affect the sperm quality of fresh semen, but influenced the semen traits during storage (24h at 5°C). In particular, the motility, FPM and viability of the C group were significantly higher (P<0.05) than those found in the A and B groups. No significant differences were found in reproductive performance (P>0.05). This study shows the positive effects of lycopene supplementation on semen production and refrigerated semen characteristics. Lycopene supplementation of drinking water could have interesting applications in field conditions, although further research into the role of this antioxidant in animal production is needed.
2012-10-05T11:10:30ZHair cortisol levels determined at different body sites in the New Zealand White rabbitComin, AntonellaZufferli, ValentinaPeric, TanjaCanavese, FedericoBarbetta, DavidePrandi, Albertohttps://riunet.upv.es:443/handle/10251/174262023-11-21T11:52:11Z2012-10-05T11:04:50ZHair 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 (P<0.001) and no statistical differences (P>0.05) in hair cortisol levels among the different body sites in each of the animals.
2012-10-05T11:04:50ZLetter from the editor in chief. World Rabbit Science: Evolution 2008-2012 and new features for 2013Pascual Amorós, Juan Joséhttps://riunet.upv.es:443/handle/10251/174252023-11-21T11:52:11Z2012-10-05T10:51:06ZLetter 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 ¿Agriculture, Dairy and Animal Science¿ of the Journal Citation Reports¿ since 2007, with another 55 journals that also publish animal science knowledge. As it can be seen from the Table, the evolution of the Impact Factor (IF; average number of times articles from the journal published in the past two years have been cited in the JCR year) of the World Rabbit Science has led to obtain a 5-years Impact Factor of 0.667, positioning the journal in the place 27 of 55 (being for the first time in the quartile Q2 of this category). The Editorial Board of the World Rabbit Science believes that this evolution shows up the availability and/or interest of the knowledge published in World Rabbit Science, which makes it an adequate alternative to bear in mind to disseminate your new knowledge in rabbit science.
2012-10-05T10:51:06ZThe influence of porcine prophenin on neutrophils isolated from rabbit blood during implantation of calcium sulphate graft material into bone tissueWessely-Szponder, JoannaBobowiec, RyszardSzponder, Tomaszhttps://riunet.upv.es:443/handle/10251/174242023-11-21T11:52:11Z2012-10-05T10:46:35ZThe 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 an innate immune response in which neutrophils participate. The aim of this study was to evaluate prophenins (PF) isolated from porcine leukocytes in respect to neutrophil activity and survival during implantation of calcium sulphate bone grafts substitution in rabbits. Obtained results pointed out that neutrophils responded to PF depending upon concentration. Thirty min from implantation of calcium sulphate graft, we observed the greatest release of elastase (57.01±0.49% of maximal release) in cultures stimulated with 10 mg/ml of PF, at 0 mg/ml was 51.15±0.23%, while after 24 h of incubation the greatest response was at a concentration of 20 mg/ml. MPO release after 30 min from surgery decreased significantly at 10 mg/ml. In higher concentrations, the inhibition was less pronounced. Moreover, we estimated that PF causes cytotoxicity in the highest concentration as well as the apoptosis of neutrophils.
2012-10-05T10:46:35ZPerceptions among university students in Seville (Spain) of the rabbit as livestock and as a companion animalGonzález-Redondo, PedroContreras-Chacón, Gema M.https://riunet.upv.es:443/handle/10251/174232023-11-21T11:52:11Z2012-10-05T10:46:18ZPerceptions 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 as livestock compared to the pig, cow, goat, sheep and hen. Regarding companion animals, young Spanish people preferred the dog and cat, respectively. The rabbit and the hamster were rated at the same level as a pet, while the budgerigar was rated lower than these two mammals by women and higher by men. The goldfish occupied the last position among the pet species in the women's perceptions. With regard to the perception of various rabbit breeds and varieties when evaluated as pets, it was found that the pet Lop Dwarf, Netherland Dwarf, Angora and Lionhead breeds were rated higher than a typical meat breed (New Zealand White) and than the wild rabbit. The gender of the young people surveyed influenced their perception of the rabbit. Women rated the rabbit lower as livestock while they rated it higher as a pet, also rating the pet rabbit breeds higher than men did. It is proposed that, in keeping with the rabbit's attributes related to its cuteness, conceptually linked with pets, young Andalusian people's perception of the rabbit is ambivalent and this perception might partly be shifting from perceiving it as livestock to regarding it as a pet.
2012-10-05T10:46:18Z