Recursos de colección

RiuNet. Repositorio institucional de la Universitat de Valencia (102.815 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.

Mostrando recursos 1 - 7 de 7

  1. UTILIZATION OF FIELD BEANS BY GROWING RABBITS 2 - EFFECTS OF VARIOUS PLANT SUPPLEMENTATIONS

    Berchiche, M.; Lebas, F.; Ouhayoun, J.
    [EN] Eighty New Zealand White rabbits distributed into four dietary groups were fattened between 35 and 77 days in individual cages. The diets were SOJ (soybean control), FEVL (field bean meal + lucerne as the main plant supplementation), FEVSO (field bean meal + wheat bran and barley) and FEVT (field bean meal + sunflower meal). The mean protein content of the diets (14.6 % to 15.1 %) and protein digestibility (69 to 70.9 %) did not differ between diets, but the digestible energy content varied from 2076 (FEVT diet) to 2301 kcal DE/ kg. The growth rate was smaller under the field bean based diets than under the SOJ diet...

  2. REPRODUCTIVE PERFORMANCE OF RABBITS FED WHEAT BRAN WITH TROPICAL FORAGES OR LEUCAENA LEUCOCEPHALA

    MUIR, J.P.; MASSAETE, E.S.
    [EN] Reproductive characteristics of 12 does fed 24 % (dry matter basis) fresh Leucaena leucocephala with wheat bran ad libitum were compared to 12 does fed wheat bran ad libitum with various herbaceous tropical forages ad libitum for 6 months. During the trial, 75 % of the L. leucocephala fed does either died or were eliminated due, indirectly, to pododermatitis. For these does, young born were 83.6 % and young weaned were 55.7 % of the control group results. Offspring mortality was 52.2 % and total mass of young weaned was 2.4 kg compared to the control mortality of 28 % and weaned young mass of 5.2 kg. Results suggested...

  3. NOTE CONCERNING THE EFFECT OF PMSG STIMULATION ON THE MORTALITY RATE AT BIRTH AND THE DISTRIBUTION OF LITTER SIZE IN ARTIFICIALLY INSEMINATED DOES

    Maertens, L.; Luzi, F.
    [EN] A study of the mortality rate at birth and the distribution of litter size frequencies was performed on 3 consecutive artificial inseminations of 2 groups of rabbit does. In the experimental group the does were treated with 30 IU PMSG about 48 hours before the insemination. The second s;¡roup was a control without treatment. In total 385 1nseminations were performed on multiparous does. The obtained number of htters was 123 in the PMSG group and 142 in the control one. Results showed a significant (P<0.01) increased birth mortality in the PMSG treated does (14.08 %) compared to the controls (6.23 %). The distribution of the frequencies of the litter...

  4. MOLASSES BLOCKS AS SUPPLEMENTARY FEED FOR GROWING RABBITS

    Amici, A.; Finzi, A.
    [EN] In the present study molasses-blocks, including different amounts of cereal by-products and cement, have been tested in order to verify their effectiveness as supplementary feeds for forage fed rabbits. The tour feeding treatments were tested on 180 New Zealand White rabbits of 37, 65, 80 days of age during two trials. Molasses-blocks were formulated with 4 or 1 O % of cement on DM (84 and 810) and provided to the animals in addition to fresh alfalfa. The two control groups were fed fresh alfalfa alone (AA) or an industrial balanced pellet (IP). The higher cement level in block 810 induced the animals to reduce its ingestion (P<0.05) that was...

  5. LONG TERM EFFECT OF PMSG ON RABBIT DOES REPRODUCTIVE PERFORMANCE

    Boiti, C.; Castellini, C.; Canali, C.; Zampini, D.; Monaci, M.
    [EN] This study was carried out to verify the long term effect of Pregnant Mare Serum Gonadotrophin (PMSG¡ treatments (20 IU three days before the induction of ovulation with GnRH) on the fertility and ovarian response of does artificially inseminated for at least 7 cycles. Twenty-five nulliparous does were submitted to recurring treatments at fixed intervals of 45 days. A total of 175 artificial inseminations were performed. The results confirmed previous observations about the progressive loss of efficacy of the PMSG in inducing pregnancy (from 80.9 to 60.9 %), above ali in does classified as hyper-immune (84 % of animals). The lactation stage negatively influenced the reproductive performance especially in does...

  6. LA CUNICULTURE SUD-AMÉRICAINE LE BRÉSIL

    Colin, M.
    [EN] The inforrnation on Brazilian rabbit production is rare and partial even if the Latin origin of the population induces good develoP-rnent conditions for an irnportant rabbit production. In the 60 s, export-oriented angora rabbit farrns were created. Then, at the beginning of the 70's, the first rabbit rneat farrns were developeá with very extensiva rnanagernent rnethods. After a crisis, at the beginning of the SO's, the Brazilian rabbit production decreased t5efore the renewed success of the last years. The Brazilian rabbit production has 3 cornponents : the industrial segrnent, with sorne of the largest rabbit farrns in the world, represents 15 % of the whole rneat production ; the rational...

  7. A TRAIL TO GRADE NEW ZEALAND WHITE RABBITS FOR BROILER PRODUCTION AT MARKETING AND BREEDING

    AYYAT, M.S.; MARAI, F.M.; EL-SAYIAD, GH.A.
    [EN] Ei¡;¡hty healthy New Zealand White male rabbits, at marketing age (90 days), were used in this study. All available measurements and their indices on the live animals with half of one standard deviation difference were used to classify the carcasses and their associated traits to definite classes according to fleshing and superiority of the prime cuts. With this aim in view, correlation coefficients between each pair of traits studied, coefficients of determination and prediction equations for sorne carcass traits by stepwise and simple methods, were estimated to define the 1mportant measurements in predicting mainly fleshing and prime cuts. Correlation coefficients between each pair of traits studied within each of the grades...

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