World Rabbit Science - Vol. 27 (2)-2019https://riunet.upv.es:443/handle/10251/1270132024-03-28T22:51:15Z2024-03-28T22:51:15ZAbstracts of the 44th Symposium on Cuniculture, ASESCUConferences, Congresses, Symposiums..., Abstracts,https://riunet.upv.es:443/handle/10251/1270202023-11-21T11:52:19Z2019-10-02T12:12:34ZAbstracts of the 44th Symposium on Cuniculture, ASESCU
Conferences, Congresses, Symposiums..., Abstracts,
[EN] The 44th Congress of the Spanish Association of Cuniculture (ASESCU) was held in Aranda de Duero (Burgos province, Castile and Leon region, Spain) from 5th to 6th June 2019, hosted by the trade union “Unión de Campesinos de Burgos”. The six main talks mainly focussed on the reasons behind rabbit meat consumption and how to promote it. The first explained the evolution of meat consumption by humans, another one analysed the environmental impact of livestock, and the third showed efficicient advertising strategies. Moreover, another talk explained the strategic approach of the rabbit meat promotion campains carried out in Spain in recent years. Finally, the Director of the Rabbit Meat Marketing Board (INTERCUN) spoke about the need for research, development and innovation in rabbit farming. The last speech proposed what to do to sell better the rabbit meat on the basic of the current tendencies of the food market. Moreover, a total of 22 communications were presented in working sessions with oral communications and posters (nutrition, pathology, housing and welfare, and reproduction and genetics). The meeting was attended by near 170 participants from several European, American and African countries. Abstracts of the contributions presented are reported below.
2019-10-02T12:12:34ZNano selenium treatment effects on thyroid hormones, immunity and antioxidant status in rabbitsEid, Sherif YousifEl-Zaher, Hussein MustafaEmara, Sana SayedFarid, Omar Abdel-HamedMichael, Michael Ibrahimhttps://riunet.upv.es:443/handle/10251/1270192023-11-21T11:52:19Z2019-10-02T12:09:32ZNano selenium treatment effects on thyroid hormones, immunity and antioxidant status in rabbits
Eid, Sherif Yousif; El-Zaher, Hussein Mustafa; Emara, Sana Sayed; Farid, Omar Abdel-Hamed; Michael, Michael Ibrahim
[EN] The present study was conducted to compare the effect of Nano-Selenium (Nano-Se) and sodium selenite (SSe) on antioxidant enzyme activity, immunity and thyroid activity of growing New Zealand White (NZW) rabbits. In this study, 72 male rabbits (5 wk old) were divided randomly into 3 groups (24 rabbits each). The first group served as a placebo; in groups 2 and 3, each rabbit was intramuscularly injected once a week with 4 mL solution of Nano-Se or SSe, respectively, for a 2-mo period. The solution was adjusted to provide 30 μg Se/kg/live body weight. Results showed that Nano-Se treatment significantly (P<0.0001) increased in superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione (GSH) more than control, but decreased significantly each of glutathione disulphide (GSSG) and nitric oxide (NO) levels in serum. Likewise, supplementation of SSe increased (P<0.0001) GPx activity and significantly decreased both malondialdehyde (MDA) and GSSG levels more than control. Nano-Se significantly enhanced serum IgG and IgM more than SSe and control groups. Serum aspartate aminotransferase increased (P<0.0001) due to Nano-Se treatment as compared to control and SSe, although the lowest (P<0.0001) activity of alanine aminotransferase was recorded due to SSe supplementation. Nano-Se treatment increased (P<0.0001) both T3 and T4 concentrations more than other groups. Furthermore, administration of Nano-Se increased SOD, GPx, GSH, total antioxidant capacity (TAC) and adenosine triphosphate (ATP) in liver tissue of growing rabbits, while it decreased MDA and 8-hydroxy-2’deoxyguanosine (8-oHdG) levels in liver tissue compared with control. Also, SSe showed an increase (P<0.0001) in GSH, and ATP, but significantly decreased TAC and MDA levels compared with control. It can be concluded that Nano-Se supplementation significantly enhanced the activity of antioxidant enzymes in both serum and liver tissues, with a greater positive influence on immunoglobulin production and thyroid activity in growing NZW rabbits than SSe.
2019-10-02T12:09:32ZOutbreaks of myxomatosis in Egyptian domestic rabbit farmsSalem, H. M.Morsy, E. A.Hassanen, E. I.Shehata, A. A.https://riunet.upv.es:443/handle/10251/1270172023-11-21T11:52:20Z2019-10-02T12:06:00ZOutbreaks of myxomatosis in Egyptian domestic rabbit farms
Salem, H. M.; Morsy, E. A.; Hassanen, E. I.; Shehata, A. A.
[EN] Myxomatosis is an endemic infectious, severe and often fatal disease of rabbit caused by myxoma virus. In the present study, myxomatosis outbreaks were reported in 7 domestic rabbit farms in Egypt. Rabbits showed oedema of the eyelids, facial oedema and blepharoconjunctivitis. The morbidity and lethality rates were 18-100% and 20-80%, respectively. The myxomatosis diagnosis was based on histopathology, virus isolation on rabbit kidney cell line (RK-13), polymerase chain reaction (PCR) and sequence analysis. Histopathological examination revealed the presence of epidermal hyperplasia, dermal necrosis and intracytoplasmic eosinophilic inclusion bodies. The virus was isolated on RK-13 cells and induced cytopathic effect. Using PCR, a band of 471 base pair corresponding to the M071L gene was amplified from extracted DNA. Sequence alignment of four out of the 7 isolates revealed that these isolates were 98-99% identical to European and Australian rabbit myxoma reference viruses. In conclusion, rabbit myxomatosis outbreaks and virus isolation procedures are reported herein for the first time in Egypt. Preventive policies against disease circulation should be adopted by the national authorities.
2019-10-02T12:06:00ZQuality assessment of cryopreserved New Zealand white rabbit spermatozoa in INRA-82 extender containing different cryoprotectantsFadl, Aya MohamedGhallab, Abdel-Raouf MorsyAbou-Ahmed, Mostafa Mohamedhttps://riunet.upv.es:443/handle/10251/1270162023-11-21T11:52:20Z2019-10-02T12:01:35ZQuality assessment of cryopreserved New Zealand white rabbit spermatozoa in INRA-82 extender containing different cryoprotectants
Fadl, Aya Mohamed; Ghallab, Abdel-Raouf Morsy; Abou-Ahmed, Mostafa Mohamed
[EN] The present study aimed to evaluate the effect of supplementation of INRA-82 semen extender with different cryoprotectants (dimethyl sulphoxide; DMSO vs. dimethyl formamide; DMF) on the quality of white New Zealand rabbit buck spermatozoa. We also investigated the possible association between the synergistic action of DMSO and DMF and their relation with INRA-82 extender composition. Semen was collected and pooled from 8 adult rabbit bucks. Pooled semen samples were diluted 1:1 with INRA-82 extender supplemented with DMSO 8%, DMF 8% or a combination of DMSO 4% and DMF 4%. The diluted semen samples were cryopreserved in 0.25 plastic straws. After thawing, progressive motility, sperm viability, sperm abnormalities, membrane integrity, acrosome status, viability index and DNA integrity were evaluated. The results showed that dilution of rabbit buck semen in INRA-82 supplemented with DMSO and DMF (4% each) before freezing significantly (P<0.05) improved sperm motility (42.00%), percentage of live spermatozoa (45.30%), proportions of spermatozoa with intact acrosome (59.75%) and percentage of spermatozoa with non-fragmented DNA (86.04%), compared to those diluted in INRA-82 supplemented either with DMSO 8% (+9, +10, +5 and +7 percentage points, respectively) or with DMF 8% alone (+18 +18, +12 and +9 percentage points, respectively). In conclusion, dilution of rabbit buck semen before freezing with INRA-82 extender supplemented with a combination of DMSO 4% and DMF 4% improved quality of frozen-thawed New Zealand White rabbit spermatozoa. Furthermore, our results also suggest that supplementation of INRA-82 with DMSO or with DMF alone at higher concentrations deteriorates the sperm quality.
2019-10-02T12:01:35ZNutritive value of two types of olive cake (Olea europaea l.) for growing rabbitDorbane, ZahiaKadi, Si AmmarBoudouma, DalilaGater-Belaid, NadiaBannelier, CaroleBerchiche, MokraneGidenne, Thierryhttps://riunet.upv.es:443/handle/10251/1270152023-11-21T11:52:19Z2019-10-02T11:57:00ZNutritive value of two types of olive cake (Olea europaea l.) for growing rabbit
Dorbane, Zahia; Kadi, Si Ammar; Boudouma, Dalila; Gater-Belaid, Nadia; Bannelier, Carole; Berchiche, Mokrane; Gidenne, Thierry
[EN] The nutritive value of 2 types of sun-dried olive cake (OC), extracted traditionally (COC) or with a 3-phase olive cake (TPOC), was studied for the growing rabbit. Four diets containing 10 or 20% of COC (COC10 and COC20) or of TPOC (TPOC10 and TPOC20) in substitution for a basal diet were compared to a control diet without OC (OC0). Five groups of 12 rabbits were fed one of the 5 diets ad libitum from weaning (35 d) to 46 d of age. The faecal digestibility was individually measured between 42 and 46 d of age. COC and TPOC are high fibre and lignin sources, with 707 and 787 g/kg dry matter (DM) of neutral detergent fibre, 530 and 554 g/kg DM of acid detergent fibre, 242 and 243 g/kg DM of acid detergent lignin, respectively. Replacing 20% of basal diet by COC sharply reduced (P<0.001) the digestibility of energy and crude protein from 0.67 to 0.54, but that of protein only moderately (from 0.80 to 0.76). The same effect was observed with the incorporation of 20% of TPOC. The digestible energy (DE) content of COC and TPOC were calculated by regression and were 3.24±0.41 and 2.94±0.52 MJ DE/kg DM respectively, corresponding to an apparent faecal digestibility of the gross energy of 0.14 (COC) and 0.13 (TPOC). The apparent faecal digestibility of the crude protein of COC was 7 units higher than TPOC (0.44 vs. 0.37) and the digestible protein (DP) content was 20% higher (27.9±4.2 g vs.22.4±6 g DP/kg DM). Olive cake could be considered as a high fibre source with a low protein and energy content for the growing rabbit.
2019-10-02T11:57:00Z