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- Title
Morphological differences of duodenal villi between floor and cage feeding method on broilers.
- Authors
Chang, H. H.; Kuo, H. Y.
- Abstract
This experiment investigated the duodenal villi morphology of broilers in floor and cage feeding as a reference for the study of digestion and absorption capacity of broilers in different feeding systems. 120 Ross 308 broilers were equally divided into floor and cage feeding groups based on the sex and birth weight in triplicate. Each replicate had 10 males and 10 females in ad libitum feed and water. Each replicates sacrificed 2 chickens at the age of 35 days, the middle section of the duodenum was taken about 3 cm, sliced and stained by hematoxylin-eosin staining. The length, width, and crypt depth of the villi were observed at 100 magnification and calculated the traits of villi and crypts. The results showed that the length, width, crypt depth, and villus area of the duodenal villi of the floor feeding group broilers were significantly lower than the cage group (P <0.05), and the ratio of villi length/crypth depth was significantly higher than cage group (P <0.05). In terms of gender, there was no significant difference between male and female broilers in duodenal villus length, width, crypt depth, villus area, and the ratio of villus length/crypt depth. In summary, the cell turnover rate of the duodenum of floor feeding broilers was lower than cage feeding broilers. It is possible that the nutrients absorbed by floor feeding broilers are not used for intestinal construction.
- Subjects
BROILER chickens; ANIMAL morphology; HEMATOXYLIN &; eosin staining; VILLI (Anatomy); POULTRY feeding
- Publication
Journal of the Chinese Society of Animal Science, 2021, Vol 50, p146
- ISSN
0253-9187
- Publication type
Article