Digestibility and digestive organ development in indigenous and improved chickens and ducks fed diets with increasing inclusion levels of cassava leaf meal
- 19 January 2006
- journal article
- Published by Wiley in Journal of Animal Physiology and Animal Nutrition
- Vol. 90 (5-6), 230-237
- https://doi.org/10.1111/j.1439-0396.2005.00586.x
Abstract
Growing indigenous Cambodian chickens and ducks, and broiler chickens and White Pekin ducks were fed diets containing 0%, 7%, 14% and 20% of cassava leaf meal (CLM) to study the effects of CLM level on diet digestibility and gastrointestinal tract (GIT) and organ development. The coefficient of total tract apparent digestibility (CTTAD) of dry matter (DM) and intake of digestible DM decreased with increased dietary CLM. DM and digestible DM intake was higher for local breeds than for the corresponding exotic breeds, and higher for ducks than for chickens (p < 0.001), although there were no species or breed effects on CTTAD of DM (p > 0.05). Weight of small intestine, caeca, gizzard and pancreas, expressed as per kg body weight, increased with increased CLM in the diet (p < 0.001). There was no consistent diet effect on liver weight. Length of small intestine and caeca, expressed on a mass-specific basis, increased with dietary CLM content (p < 0.001). When expressed as per kg body weight small intestine, proventriculus, gizzard, pancreas and liver weights, and small intestine length, were higher in ducks than in chickens (p < 0.001), and were higher in the indigenous than in the improved breeds (p < 0.01), except for small intestine weights, which were similar. However chickens had higher weight of caeca (p < 0.001) and colon (p < 0.01) in absolute units and per kg body weight.Keywords
This publication has 18 references indexed in Scilit:
- Passage rate through the anterior digestive tract of broiler chickens fed on diets with ground and whole wheatBritish Poultry Science, 2002
- Effect of replacing soybean protein with cassava leaf protein in cassava root meal based diets for growing pigs on digestibility and N retentionAnimal Feed Science and Technology, 2000
- Effect of different sources of dietary fibre on growth performance, intestinal morphology and caecal carbohydrases of domestic geeseBritish Poultry Science, 1998
- The influence of dietary fibre source and level on the development of the gastrointestinal tract, digestibility and energy metabolism in broiler chickensBritish Journal of Nutrition, 1996
- Effects of level of dietary fibre from wheat bran on digestibility of nutrients, digestive enzymes and performance in the european Large White and Chinese Mei Shan pigJournal of Animal Physiology and Animal Nutrition, 1992
- Absorption by the cecum of wild birds: Is there interspecific variation?Journal of Experimental Zoology, 1989
- Comportement alimentaire et motricité digestive des oiseauxReproduction Nutrition Développement, 1981
- The Intestinal Microflora of Poultry and Game Birds During Life and After StorageJournal of Applied Bacteriology, 1979
- The protein quality of cassava leavesBritish Journal of Nutrition, 1970
- Intestinal synthesis of vitamins of the B complex in chicksBritish Journal of Nutrition, 1968