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Effect of diets containing different kinds of silage on morrho-histometry of rabbits gastrointestinal tract
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Abstract: This study aimed to investigate effects of feeding different types of silage on development of rabbits digestive tract. Forty five NZW male rabbits 6 weeks old were distributed to 5 similar groups.
Group 1 (G 1) fed 100% complete feed diet (CFD) and was served as the control group. The other groups were fed 70% CFD and the test was (30%) different types of silage. The sources of silage were carrot roots (G2), carrot tops (G3), berseem (G4) and corn (G5). All rabbits were fed from 6 up to 16 the week of age. At 16 weeks of age results showed percentage of DM in caecal content of rabbits did not differ significantly. Values of pH in caecal contents of rabbits was significantly decreased in carrot tops, corn and berseem silage groups as compared to carrot roots silage and control groups.
Concentration of NH3-N in caecal content increased significantly in rabbits fed berseem and corn silage diets only. Concentration of VFA's was the highest (P<0.05) in caecal contents of rabbits fed berseem, corn and carrot tops silage groups compared to the other groups. Effect of dietary groups was found only on proximal colon morphometry, in term of fresh tissue weight and fresh tissue weight as a percentage of live body weight (LBW). However, the other segments were not affected. The absolute contents weight of small intestine and proximal colon in carrots tops silage group and distal colon in carrots roots silage group as wall as the relation weight of contents different to total digestive tract contents only of distal colon were significantly (P<0.05) the highest as compared to the others groups. Thickness of lamina epithelealis, tunica mucosa, tunica submucosa, tunica musculosa of small intestine and caecum was the highest (P<0.05) in berseem and corn silage groups as compared to the other groups. Average surface area. Total intestinal surface area of villi and intestinal Clypts in intestinal jejunum were the highest (P<0.5) in berseem and corn silage groups as compared to the others groups.
Keywords: Rabbits, silage, digestive tract, caecal activity, morphological and histological.
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| Publication year |
2006
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| Pages |
75-95
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى- الجيزة
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| Availability number |
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| Organization Name |
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| serial title |
Egyptian Journal of Rabbit Science
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| Author(s) from ARC |
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| External authors (outside ARC) |
عبد الخالق السيد عبد الخالق
جامعة المنصورة
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Digestive system.
Rabbits.
Silage.
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| Proposed Agrovoc |
caecal activity;morphological;histological;
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| Publication Type |
Journal
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