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...
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
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...
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...
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...
[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 ;
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...