Effects of different stocking density and diet on development of Bufo gargarizans tadpoles / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 1001-1007, 2016.
Artigo
em Chinês
| WPRIM
| ID: wpr-230045
ABSTRACT
The effects of four different stocking densities and five different diets on the growth of Bufo gargarizans tadpoles were studied to determine the optimum stocking density and diet. For stocking density experiment, the tadpoles were fed respectively at different density of 200, 500, 1 000 and 2 000 tadpoles per square meter. For diet experiment, the tadpoles were divided into five groups fed respectively with five different diets. The body weight, snout-vent length and tail length were measured every seven days, and mortality was recorded. The results showed that the survival rates of tadpole before metamorphosis and after metamorphosis were from 68.7% to 96.3% and from 5.7% to 36.0%, respectively; the optimum stocking density is 1 000 tadpoles per square meter for the stocking density had no effect on the survival rate of tadpole before metamorphosis, and the tadpoles had the relative large body weight and survival numbers in 1000 tadpoles per square meter; the diet Ⅱ(37.9% crude protein and 5.7% crude fat), Ⅳ (25.1% crude protein and 4.0% crude fat), and Ⅴ (egg yolk) were all the optimum diets for the diet had no effect on the survival rate of tadpole before metamorphosis and the tadpoles fed with three kinds of diet above had relatively large body weight, and one of these three diets based on their availability and cost should be adopted during breeding period.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2016
Tipo de documento:
Artigo
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