Appearance and Digestive System Comparison of Lonchura Striata and Copsychus Saularis: Searching for the Effect of Staple Feeding Ingredients on Avian Morphology
R. bras. Ci. avíc.
; 22(4): eRBCA-2020-1308, out. 2020. ilus, tab
Article
em En
| VETINDEX
| ID: vti-761980
Biblioteca responsável:
BR68.1
Localização: BR68.1
ABSTRACT
This study explores the differences of appearance and the digestive systems of two birds (Lonchura striata and Copsychus saularis), which have the same eating pattern in staple ingredients. Each bird was caught naturally and euthanized in appropriate manner, followed by morphology survey on bill, duodenum, jejunum, ileum and appearance of the body parts such as Culmen, Claw, Wing, Tarsus, Toe and Tail. The results showed that the appearance feature between them presented significant differences in the beak length, wing length and tail length, which were correlated to their staple feeding habits. In addition, in the digestive system, the length of duodenum and duodenal indexes showed significant differences (p 0.05 or p 0.01), which was considered to be correlated to their predation rate. However, there were no significant differences in jejunum length, ileum length, and the whole digestive tract length and weight, the evidence showed that feeding habits still play a great role in the whole intestine. It is concluded that different staple feeding habits allow the birds to evolve different traits both in appearance and intestine, which aim to improve their predation rate and adapt to different environments. Among all features, duodenum and duodenal were the major objects to get stressed in digestive system, while beak length, wing length and tail length differed most in appearance. And it was speculated that different food compositions lead to different changes in certain positions of the body, thus might shape an explorable trail, which needs to be investigated thoroughly.(AU)
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Texto completo:
1
Base de dados:
VETINDEX
Assunto principal:
Passeriformes
/
Sistema Digestório
/
Comportamento Alimentar
Limite:
Animals
Idioma:
En
Revista:
R. bras. Ci. avíc.
/
Rev. bras. ciênc. avic
Ano de publicação:
2020
Tipo de documento:
Article