Yassein, S.A.; Mahmoud, K.Gh. M.; Maghraby, N.; Ezzo, O.H.
[EN] This study aimed to improve productive and reproductive performance of female rabbit does during the summer season hot climate using vitamin C or cooled water in combination with equine chorionic gonadotropin (eCG) treatment. Sixty New Zealand White rabbit does were assigned to three groups, according to drinking-water treatment: 1) fresh tap water without any supplementation (control, C), 2) cooled drinking water (10-15ºC) (CW), and 3) fresh tap water supplemented daily with added ascorbic acid (1 g/L) (vitamin C). Twenty four hours before mating, does of each group were randomly divided into two subgroups; H does were intravenously injected with...
Haj Ayed, M.; Ben Saïd, B.
[EN] A total of 192 CalifornianxNew Zealand rabbits weaned at 33 d old were used in this experiment. Animals were allocated at weaning to three homogenous treatment groups based on litter size and live weight. Rabbits in control treatment (C) were offered a standard feed (SF) containing Robenidin and Flavomycin. Rabbits in TI treatment were fed SF diet and supplemented between days 33 and 62 with Tiamulin. The third group of rabbits (RK treatment) were fed SF diet and supplemented with Rescue-Kit(R) (containing B. licheniformis and B. subtilis (1600x10(9) CFU), betain, vitamins and oligo-elements) in the drinking water from 41...
Pascual Amorós, Juan José; Ródenas, L.; Martínez, E.; Cervera, C.; Blas, E.; Baselga, M.
The objective of the present paper is to evaluate how long-term selection for litter size at weaning or short-term hyper selection for reproductive longevity, affect the digestive utilisation of growing and lactating rabbits. A digestibility trial was carried out during the 3rd week of lactation with a total of 27 multiparous does: 14 females came from a line selected for litter size at weaning over 32 generations (V), and 13 from a recently constituted, long lived-productive line (LP). Another digestibility trial was performed during the growing period with a total of 48 growing rabbits (24 from each line). After a...
[EN] The objective of this study is to evaluate the effect of dietary grape pomace (GP) on certain characteristics, mainly lipid peroxidation and the antioxidative status of rabbit buck semen. Twenty seven adult New Zealand White rabbit bucks (6 months of age) were divided into three homogeneous groups (n=9) and randomly submitted to one of the three investigated dietary treatments. Animals in the fi rst treatment (control) group were given the basal diet. The diets of the second (GP-10) and third (GP-20) treatment groups contained 10 and 20% of GP, respectively. Bucks received the experimental diets for 10 continuous weeks....
Reyes-Guerrero, G.; Vázquez-García, M.; Calderón-Guzmán, D.; Donatti-Albarrán, O.; Guevara-Guzmán, R.
[EN] Microdialysis sampling was used to measure the glutamate level (GLU) contained in the suprachiasmatic nucleus (SCN) in 10 pregnant and 10 non-pregnant, subjected to either a 16:8 h light-dark cycle or a 12 h advanced photoperiod. Results revealed that GLU levels were significantly greater in samples taken for 2 h (15 min intervals), ¿60, ¿45 and ¿30 min before parturition (P<0.009, P<0.04, P<0.02), and +45 and +60 min after birth (P<0.009, P<0.05) respectively, in pregnant rabbits subjects to a 16:8 LD photoperiod (with light from 6:00-22:00 h). Parturition in these animals occurred at day 31 of gestation. Pregnant rabbits...
Safaa, H.M.; Vicente, J.S.; Lavara, R.; Viudes de Castro, M.P.
[EN] Twenty rabbit bucks of 9 months of age were used to evaluate semen quality of two lines of New Zealand rabbit bucks selected for litter size at weaning (A line) and growth rate from weaning to slaughter (R line). The morphological semen characteristics indicated that the A line spermatozoa had greater acrosome integrity (+3.6 percentage units; P<0.01) and smaller sperm head size (for example, ¿1.46 ¿m2 for sperm head area) than in the R line. Seminal functional traits were also significantly higher for the A line (+13.4 percentage units for viability, +10.6 percentage units for hypo-osmotic swelling test (HOST)...
Pascual Amorós, Juan José
Pascual Amorós, JJ. (2010). Letter from the editor in-chief. http://hdl.handle.net/10251/8937.