The aim of this study was to evaluate induced reproduction in tambaqui females using buserelin acetate as compared with the traditional treatment regimen with carp pituitary extract (CPE). Reproductive traits of females with a body weight (BW) of 8.47 ± 1.52 kg were evaluated in ten females treated with buserelin acetate at the dose of 0.5 mL/kg BW, in a single application, and in ten females treated with CPE at the dose of 5.5 mg/kg BW, in two applications (10 % and 90 %, with a 12-h interval between applications). Spawning rate did not differ between the females treated with buserelin acetate (40 %) and CPE (40 %). Weight, fertilization rate and hatching rate did not differ between the two treatment groups. Degree-hours (determined as the average temperature multiplied by time, in hours, for spawning after the treatment with the second dose of CPE and after the single treatment with buserelin acetate) for spawning and number of oocytes per gram of gametes collected were greater (P < 0.05) in the females treated with buserelin acetate than in the females treated with CPE. Production index, absolute fecundity and relative fecundity were greater (P < 0.05) in the females treated with CPE. The hormone buserelin acetate promotes reproduction in tambaqui females with there being a similar spawning rate and oocyte quality, however, lesser production indices and fecundity than when there is the conventional treatment regimen imposed with carp pituitary extract.

本研究的目的是与传统的鲤鱼垂体提取物 (CPE) 治疗方案相比，评估使用醋酸布舍瑞林的 tambaqui 雌性的诱导繁殖。体重 (BW) 为 8.47 ± 1.52 kg 的雌性的生殖特性在 10 只用 0.5 mL/kg BW 剂量的醋酸布舍瑞林治疗的雌性中进行评估，单次应用，以及用 CPE 治疗的 10 只雌性5.5 mg/kg BW，两次应用（10% 和 90%，应用间隔 12 小时）。用醋酸布舍瑞林 (40 %) 和 CPE (40 %) 处理的雌性之间的产卵率没有差异。两个处理组之间的体重、受精率和孵化率没有差异。度-小时（确定为平均温度乘以时间，以小时为单位，P  < 0.05) 在用醋酸布舍瑞林治疗的女性中比在用 CPE 治疗的女性中。 CPE治疗的雌性的生产指数、绝对繁殖力和相对繁殖力均较高（P < 0.05）。醋酸布舍瑞林激素促进 tambaqui 雌性的繁殖，具有相似的产卵率和卵母细胞质量，但与使用鲤鱼垂体提取物的常规治疗方案相比，生产指数和繁殖力较低。