Protein requirements for Blue-fronted Amazon (Amazona aestiva) growth


Autoria(s): Carciofi, A. C.; Sanfilippo, L. F.; de-Oliveira, L. D.; do Amaral, P. P.; Prada, F.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/06/2008

Resumo

The objective of this study was to evaluate the protein requirements for hand-rearing Blue-fronted Amazon parrots (Amazona aestiva). Forty hatchlings were fed semi-purified diets containing one of four (as-fed basis) protein levels: 13%, 18%, 23% and 28%. The experiment was carried out in a randomized block design with the initial weight of the nestling as the blocking factor and 10 parrots per protein level. Regression analysis was used to determine relationships between protein level and biometric measurements. The data indicated that 13% crude protein supported nestling growth with 18% being the minimum tested level required for maximum development. The optimal protein concentration for maximum weight gain was 24.4% (p = 0.08; r(2) = 0.25), tail length 23.7% (p = 0.09; r(2) = 0.19), wing length 23.0% (p = 0.07; r(2) = 0.17), tarsus length 21.3% (p = 0.06; r(2) = 0.10) and tarsus width 21.4% (p = 0.07; r(2) = 0.09). Tarsus measurements were larger in males (p < 0.05), indicating that sex must be considered when studying developing psittacines. These results were obtained using a highly digestible protein and a diet with moderate metabolizable energy levels.

Formato

363-368

Identificador

http://dx.doi.org/10.1111/j.1439-0396.2007.00800.x

Journal of Animal Physiology and Animal Nutrition. Malden: Wiley-blackwell, v. 92, n. 3, p. 363-368, 2008.

0931-2439

http://hdl.handle.net/11449/1791

10.1111/j.1439-0396.2007.00800.x

WOS:000255754500018

Idioma(s)

eng

Publicador

Wiley-Blackwell

Relação

Journal of Animal Physiology and Animal Nutrition

Direitos

closedAccess

Palavras-Chave #Amazon #birds #hand rearing #Nutrition #psittacine
Tipo

info:eu-repo/semantics/article