Staff Members - Benha University
Growth‚ carcass and caecal traits in V-line and crossbred rabbits fed diets containing discarded dates - 2007
World Rabbit Science, France, • 2007
Publication Information
Authors
Al-Dobaib S. N., Khalil M. H., Hashad M. and Al-Saef, A.M
Keywords
Rabbit, genetic line‚ dates, growth performance‚ meat quality, caecal microflora, blood parameters
Journal
World Rabbit Science, France,
Publisher
World Rabbit Science Association
Volume
15
Issue
1
Pages
81-90
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
A total of 78 rabbits representing two genetic groups of V-line and crossbred of V-line x Saudi Gabali
were used to evaluate dietary treatments containing discarded dates (DD) for post-weaning growth
performance‚ feed consumption and conversion‚ carcass characteristics, caecal parameters, and blood
constituents. In the control diet (C), no DD was added‚ while in the other diets DD were incorporated to replace
partially barley‚ wheat bran‚ molasses and corn by 15% (D15 diet) or 30% (D30 diet). Feed conversion ratio at
interval of 4-12 weeks was significantly in favour of the control diet. Carcass traits and caecal parameters
were not significantly affected by any of the 3 dietary treatments. Total caecal bacterial count was significantly
increased in favour of rabbits fed D30. Crude protein, ether extract and ash in the lean were in favour of the
diets containing 15 or 30% DD; indicating an improvement of 5.3 or 3.9% in crude protein and 7.3 or 14.4% in
ash relative to the control diet, respectively. Rabbits fed D30 recorded a significant decrease in the plasma
cholesterol. Crossbred rabbits were heavier in body weights and gains than that of the V-line rabbits. Feed
conversion ratios were in favour of V-line rabbits. Fat in carcass and meat to bone ratio in crossbred rabbits
were significantly higher than that in V-line rabbits, while percentages of the lean and bone in V-line carcasses
were higher. Caecal bacterial count in crossbred rabbits was lower than that in V-line rabbits. Carcass traits,
tissues compositions, caecal parameters and blood constituents were significantly affected by interaction of
dietary treatments with genetic groups, while most of the lean constituents were not affected. Crossbred
rabbits fed D30 conversed feed lesser (2.57) than crossbred rabbits fed the other two dietary treatments
since feed conversion ratio was 2.48 for C diet and 2.49 for D15 diet. But‚ V-line rabbits fed C diet conversed
better (2.95) than V-line rabbits fed D15 or D30 since feed conversion ratio was 3.29 for D15 and 3.04 for D30.
were used to evaluate dietary treatments containing discarded dates (DD) for post-weaning growth
performance‚ feed consumption and conversion‚ carcass characteristics, caecal parameters, and blood
constituents. In the control diet (C), no DD was added‚ while in the other diets DD were incorporated to replace
partially barley‚ wheat bran‚ molasses and corn by 15% (D15 diet) or 30% (D30 diet). Feed conversion ratio at
interval of 4-12 weeks was significantly in favour of the control diet. Carcass traits and caecal parameters
were not significantly affected by any of the 3 dietary treatments. Total caecal bacterial count was significantly
increased in favour of rabbits fed D30. Crude protein, ether extract and ash in the lean were in favour of the
diets containing 15 or 30% DD; indicating an improvement of 5.3 or 3.9% in crude protein and 7.3 or 14.4% in
ash relative to the control diet, respectively. Rabbits fed D30 recorded a significant decrease in the plasma
cholesterol. Crossbred rabbits were heavier in body weights and gains than that of the V-line rabbits. Feed
conversion ratios were in favour of V-line rabbits. Fat in carcass and meat to bone ratio in crossbred rabbits
were significantly higher than that in V-line rabbits, while percentages of the lean and bone in V-line carcasses
were higher. Caecal bacterial count in crossbred rabbits was lower than that in V-line rabbits. Carcass traits,
tissues compositions, caecal parameters and blood constituents were significantly affected by interaction of
dietary treatments with genetic groups, while most of the lean constituents were not affected. Crossbred
rabbits fed D30 conversed feed lesser (2.57) than crossbred rabbits fed the other two dietary treatments
since feed conversion ratio was 2.48 for C diet and 2.49 for D15 diet. But‚ V-line rabbits fed C diet conversed
better (2.95) than V-line rabbits fed D15 or D30 since feed conversion ratio was 3.29 for D15 and 3.04 for D30.