Academic Journal
Effect of broodstock diet on the fecundity and biochemical composition of eggs of the Patagonian red octopus (Enteroctopus megalocyathus Gould 1852)
| العنوان: | Effect of broodstock diet on the fecundity and biochemical composition of eggs of the Patagonian red octopus (Enteroctopus megalocyathus Gould 1852) |
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| المؤلفون: | A Farías, JC Navarro, V Cerna, S Pino, I Uriarte |
| المصدر: | Ciencias Marinas, Vol 37, Iss 1 (2010) |
| بيانات النشر: | Universidad Autónoma de Baja California |
| سنة النشر: | 2010 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | reproductive conditioning, fecundity, perivitelline protein, fatty acids, Enteroctopus megalocyathus, Biology (General), QH301-705.5 |
| الوصف: | Twelve females of the Patagonian red octopus Enteroctopus megalocyathus, of 1.4 ± 0.2 kg, were maintained at 12 ºC under three conditioning treatments: T1 (F10%), frozen fish at 10% daily body weight (bwt d–1); T2 (FC (3:1) 10%), mix (3:1) of frozen fish and fresh crab at 10% bwt d–1; and T3 (F7.5%), frozen fish at 7.5% bwt d–1. Egg laying was observed after four months of conditioning, when from 545 to 1100 ºC days had been reached, and when females had increased 1.5 times in body weight. Absolute fecundity reached 2129 eggs (±1182) per female in treatments T1 and T2, whereas in T3 fecundity reached only 56 eggs. The lowest values of perivitelline protein were obtained in T1 and T2, while total lipid content in the yolk was similar among treatments. The most frequent fatty acids in egg yolk were 16:0, 17:0, 17:1, 18:0, 20:1, 20:4n-6, 23:0, 20:5n-3, 22:5n-3, and 22:6n-3. Significant differences in fatty acid contents among treatments were observed only for 16:1 and 22:5n-3. The results showed that females can be conditioned for egg production even when fed a diet lacking crustaceans, and that a dietary reduction of 7.5% bwt d–1 diminished fecundity without affecting egg quality in terms of their biochemical composition. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English Spanish; Castilian |
| تدمد: | 0185-3880 2395-9053 |
| Relation: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1736; https://doaj.org/toc/0185-3880; https://doaj.org/toc/2395-9053; https://doaj.org/article/500361c96bf54801b611d61099da0108 |
| DOI: | 10.7773/cm.v37i1.1736 |
| الاتاحة: | https://doi.org/10.7773/cm.v37i1.1736 https://doaj.org/article/500361c96bf54801b611d61099da0108 |
| رقم الانضمام: | edsbas.7AA64791 |
| قاعدة البيانات: | BASE |
| تدمد: | 01853880 23959053 |
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| DOI: | 10.7773/cm.v37i1.1736 |