Growth, Yield, and Dress-out Percentage of Diploid and Triploid Channel Catfish in Earthen Ponds
| العنوان: | Growth, Yield, and Dress-out Percentage of Diploid and Triploid Channel Catfish in Earthen Ponds |
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| المؤلفون: | Craig G. Lilyestrom, Richard J. Craig, William R. Wolters |
| المصدر: | The Progressive Fish-Culturist. 53:33-36 |
| بيانات النشر: | American Fisheries Society, 1991. |
| سنة النشر: | 1991 |
| مصطلحات موضوعية: | Macroscopic examination, biology, fungi, food and beverages, biology.organism_classification, Feed conversion ratio, Fishery, Animal science, Yield (wine), Ictalurus, medicine, medicine.symptom, Ploidy, General Agricultural and Biological Sciences, Hectare, Weight gain, Catfish |
| الوصف: | Fingerling diploid (mean ± SD: 63 ± 14 g) and triploid (45 ± 17 g) channel catfish (Ictalurus punctatus) were stocked into 0.04-hectare earthen ponds at a density of 11,000 fish/hectare, with three replicate ponds for each ploidy level. Fish were fed a pelleted commercial catfish ration (32% protein) to satiation daily. Ponds were drained and fish harvested after 185 d. No significant differences were found between diploid and triploid catfish for harvest weight and dress-out percentage; however, triploids had significantly (P < 0.05) lower survival and yield, and higher feed conversion (weight of feed fed/weight gain) than diploids. Macroscopic examination of gonads revealed the expected lack of sexual development and gonadal maturation in triploids. |
| تدمد: | 1548-8640 0033-0779 |
| DOI: | 10.1577/1548-8640(1991)053<0033:gyadop>2.3.co;2 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e5215227af634d3324a1c91e22a9b97d https://doi.org/10.1577/1548-8640(1991)053<0033:gyadop>2.3.co;2 |
| رقم الانضمام: | edsair.doi...........e5215227af634d3324a1c91e22a9b97d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15488640 00330779 |
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| DOI: | 10.1577/1548-8640(1991)053<0033:gyadop>2.3.co;2 |