کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8949577 | 1645718 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Colossoma macropomum females can reproduce more than once in the same reproductive period
ترجمه فارسی عنوان
زنان کولوزوما ماکروپوموم می توانند بیش از یک بار در همان دوره تولید مثل تولید کنند
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کلمات کلیدی
القاء هورمونی، رئوفیلیک،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
The aim of the present study was to evaluate induced reproduction in Colossoma macropomum females at the beginning of the reproductive period and 75 days after the first spawning in which reproduction was induced. The experiment was conducted in Nova Mutum, MT, Brazil. Eight 4-year-old C. macropomum females with an average body weight of 6.7â±â2.4âkg were used. Hormonal induction was performed at the beginning of the reproductive period and repeated 75 days after the first spawning. The following variables were then evaluated: weight of released oocytes, production index, absolute fecundity, oocyte diameter, fertilization rate, and hatching rate. Of the eight females that spawned during the first hormonal induction, three (37.5%) spawned again 75 days after the first spawning. Two females died after the first induced spawning. None of the means of the evaluated variables differed between the two induced spawnings, except for fertilization rate, which was greater (Pâ<â 0.05) with the first spawning (88.8â±â6.1%) than in the second (74.1â±â10.4%). The results of the present study indicate that C. macropomum females can reproduce again 75 days after a first induced spawning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Reproduction Science - Volume 196, September 2018, Pages 138-142
Journal: Animal Reproduction Science - Volume 196, September 2018, Pages 138-142
نویسندگان
Luana Barbosa Pires, Ruy Alberto Caetano Corrêa Filho, Eduardo Antonio Sanches, Elizabeth Romagosa, Thiago Gonsalo da Silva, Silvia Rech, Danilo Pedro Jr., Jayme Aparecido Povh,