Martino, P.E.; Parrado, E.; Sanguinetti, R.; Espinoza, C.; Debenedetti, R.; Di Benedetto, N.M.; Cisterna, C.; Gómez, P.
[EN] A spontaneous outbreak of maduramicin intoxication in domestic rabbits (Oryctolagus cuniculus) is reported. It is believed that maduramicin incorporated as a coccidiostat into poultry pellet fed to rabbits was the cause, as up to 2.01 ppm was found in the samples and cardiopulmonary clinical signs in most of the rabbits was the common pattern. Findings here were consistent with the classic indications observed in ionophore toxicosis in different species, but little is known about the toxicity of maduramicin in rabbits.
Rafat, S.A.; Thébault, R.G.; Bonnet, M.; Deretz, S.; Pena-Arnaud, B.; de Rochambeau, H.; Allain, D.
[EN] In order to explore the genetic variability of wool production and other quantitative traits, an 8-cohort divergent selection experiment for total fleece weight (TFW) was carried out in French Angora rabbits. Studies were made on the wool production of a total of 669 female rabbits born between 1994 and 2001 and having produced wool from first to 12th harvests. The aim of the selection experiment was to obtain two divergent lines (low and high) on TFW. From preliminary analysis, the dataset was separated into three subsets according to the harvest number: one for each of the first two harvests...
Morales, M.A.; Fuente, B.; Juárez, M.; Ávila, E.
[EN] The effect of replacing a commercial feed with hydroponic green barley forage (HGBF) was studied on productive performance and carcass yield of growing New Zealand rabbits. Four mixed diets based on a pelleted commercial feed (15.7% crude protein and 12.3% crude fi ber) were made by substituting wet HGBF (containing 16.1% dry matter, 2.18% crude protein and 2.36% crude fi ber) for the commercial feed (0, 10, 20 and 30%). Sixty-four rabbits, 35 d of age and with an average body weight of 917±9.7 (standard error) g were assigned to the 4 treatments and caged in groups of 4...
Martín, I.; García, T.; Fajardo, V.; Rojas, M.; Pegels, N.; Hernández, P.E.; González, I.; Martín, R.
[EN] A polymerase chain reaction (PCR) based on oligonucleotide primers targeting the mitochondrial 12S rRNA gene was developed for the specific identification of rabbit DNA (Oryctolagus cuniculus) in food and feedstuffs. The specificity of the primers was verified by PCR analysis of DNA from 32 non-target species including mammals, birds, fish, and plant species. Analysis of experimental mixtures demonstrated the presence of rabbit-derived materials in the range of 0.1-100%. Prolonged heat treatment (up to 133ºC for 20 min at 300 kPa) applied to rabbit muscle/oats binary mixtures did not affect the performance of the method, which could therefore be said...
Togun, V.A.; Farinu, G.O.; Ojebiyi, O.O.; Awotunde, A.I.
[EN] A total of 24 cross-bred male weaner rabbits, between 6-8 weeks of age, were fed diets which included a mixture (50:50) of rumen content (RC) and blood meal (BM), containing a crude protein content of 37.6% and crude fibre content of 9.0%, at 0 (control), 10 and 20% levels. The mixture replaced maize and maize bran in the control diet. The 3 experimental diets were restricted to 100 g daily in mash form for a period of 8 weeks to the individually housed rabbits. The inclusion of RC+BM mixture in diet 1 at 10% (RB10) significantly (P<0.05) worsed final...
Mézes, M.; Fébel, H.; Matics, Zs.; Fricska, M.; Szabó, A.; Szendro, Zs.; Balogh, K.
[EN] Pannon White bucks were selected divergently using CT method by the volume of the hind leg muscle. Animals showed the highest and lowest muscle volumes were selected as minus and plus-selected variants. The male progenies of the minus and plus-selected parents were slaughtered as fi rst generation which was selected again by CT method and the male progenies of the parents were slaughtered. Results in the fi rst and second generation suggest that selection, as a genetic effect did not affect the rate of lipid peroxidation, as was measured by malondialdehyde content and glutathione redox status, as was measured...
Carabaño, R.; Villamide, M.J.; García, J.; Nicodemus, N.; Llorente, A.; Chamorro, S.; Menoyo, D.; García-Rebollar, P.; García-Ruiz, A.I.; Blas, J.C. de
[EN] In the European context, the new legislation to avoid mineral contamination and the ban on antibiotics as growth promoters has led to the definition of new objectives in respect of nitrogen supply. The present study summarizes the state of nitrogen nutrition in rabbits and reviews the role of protein and amino acids in rabbit health and the new nitrogen value of protein sources based on true ileal digestibility (TID) for future recommendations. The main sources of nitrogen for microbial growth are ammonia, urea and protein (endogenous and dietary). The surplus of nitrogen flow to the caecum increases mortality rates...