Título

Fertility, mortality, milk output, and body thermoregulation of growing Hy-Plus rabbits fed on diets supplemented with multi-enzymes preparation

Autor

Hany Gado

Ahmed E. Kholif

Abdelfattah Zeidan Mohamed Salem

MONA MOHAMED MOHAMED YASSEEN ELGHANDOUR

Olurotimi Olafadehan

MARICELA AYALA MARTINEZ

Ahmed Almomani

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

Enzyme - ([0049-4747]) Fertility - ([0049-4747]) Milk output - ([0049-4747]) Mortality - ([0049-4747]) Rabbits - ([0049-4747]) CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI)

Resumen o descripción

Feed cost represents about 60–70 % of rabbit keeping costs; therefore, maximizing utilization of nutrients is essential for the profitability and sustainability of rabbit production. Consequently, it has become very necessary to look for locally available, cheap, and nutritionally safe feed additives that would help to cut down production costs and improve production efficiency. Since the European Union banned most of the antibiotic growth promoters in animal nutrition due to cross and multiple resistances, much research has been conducted to explore the use of multi-enzymes as effective substitutes.

The aim of this study was to evaluate the fertility status, milk output, mortality, and body thermoregulation of rabbit does as affected by different levels of multi-enzyme extracts (EZ) in their diets. A total of 120 Hy-Plus rabbit does were divided into four comparable experimental groups (n = 30 does per group). Animals of each group were divided in six pens (five animals per pen), and each pen was used as an experimental unit. The first group was kept untreated and fed a commercial diet alone without enzyme extracts (EZ0), while the other groups were fed the same diet but supplemented with 1 (EZ1), 3 (EZ3), and 5 (EZ5) kg/ton of enzyme extracts, respectively. Feeding EZ additive increased (P < 0.05) conception and kindling rates, litter size and weight at birth, and litter size and bunny weight at weaning, with decreasing (P < 0.05) abortion rate. Moreover, total milk yield increased (P < 0.05) with increasing level of enzyme supplementation. Pre-weaning mortality decreased (P < 0.05) with EZ inclusion. Signs of vitality (rectal temperature, skin temperature, earlobe temperature, respiration rate, and pulse rate) were improved with EZ inclusion. For all results, 5 kg EZ/ton of feed was more effective than 1 and 3 kg EZ/ton feed. It can be concluded that supplementation of EZ in rabbit diet decreased mortality rate and enhanced fertility status and milk output.

Editor

Trop Anim Health Prod

Fecha de publicación

18 de junio de 2016

Tipo de publicación

Artículo

Recurso de información

http://hdl.handle.net/20.500.11799/65988

Fuente

0049-4747

Idioma

Inglés

Relación

Vol.;48

No.;7

Audiencia

Estudiantes

Investigadores

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DE LA UAEM

Descargas

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