Banca de DEFESA: WYLLIAM EDUARDO ALVES SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : WYLLIAM EDUARDO ALVES SILVA
DATE: 08/05/2024
TIME: 09:00
LOCAL: Auditório
TITLE:

Assessment of Housing Systems for F1 Crossbred Breeding Rabbits

KEY WORDS:

Rabbits; Collective systems; Smart cages.

PAGES: 49
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUMMARY:

The present study aimed to evaluate housing systems for breeding rabbits and rabbits during
the fattening period, using 24 F1 crossbreed mother rabbits (1/2 New Zealand White and 1/2
California). The F1 crossbreed breeding rabbits were obtained from crossing New Zealand
White and California rabbits. The experiment was conducted at the Rabbit Farming sector
facilities at the Federal Institute Minas Gerais, Campus Bambuí, during the period from July
2020 to February 2021. The experimental design adopted was completely randomized (CRD),
with three different treatments (housings): T1 - Individual cage, T2 - Cage for two rabbits and
T3 - Collective pen (four rabbits per pen). To apply the analysis of variance (ANOVA), the
normality of the variable of interest (Y) was verified using the Shapiro-Wilk tests, as well as
the homogeneity of variances using the Bartlett test. The productive performance of the
rabbits was evaluated considering the parameters: weight at first insemination, final weight,
weight at 120, 150 and 180 days of age, weight gain in the intervals from 120 to 150 days and
from 150 to 180 days. The completely randomized design (CRD) was used for the initial
parameters, while the other parameters followed a completely randomized split-plot design,
with the types of housing as main treatments and the age of the does as secondary treatments.
Reproductive performance was evaluated according to the following parameters: total number
of births, number of live births, weight of offspring at 35 days of lactation, litter weight of
newborns and litter weight of live births. These parameters followed a completely randomized
split-plot design, with housing types as main treatments and cycles as secondary treatments.
The results revealed that housing did not influence the final weight of the does, but there was
a statistically significant difference in weight at the first insemination between the different
types of housing. In relation to weight gain, the accommodations did not have a significant
influence, except in the period of 120-150 days, where a significant difference in daily weight
gain was observed between the accommodations. With regard to reproductive performance,
housing systems did not demonstrate a significant influence on the analyzed parameters. In
conclusion, housing systems played a significant role in improving the productive
performance of rabbits, highlighting their remarkable influence in this context. However, it is
important to highlight that this influence did not substantially extend to reproductive
performance.

COMMITTEE MEMBERS:
Externo à Instituição - ANDRÉ LUIZ PINTO DOS SANTOS - UFRPE
Externa ao Programa - 3303230 - CRISTIANE ROCHA ALBUQUERQUE - nullPresidente - GUILHERME ROCHA MOREIRA