Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions
Considering the knowledge on freshwater crayfish feeding requirements and other cultured crustaceans, a practical extruded diet was formulated with the aim to be used for juvenile astacid studies from the onset of exogenous feeding. According to a bifactorial design, the practical diet was compared...
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Facultad de Ciencias Biologicas
2011
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| Materias: | |
| Acceso en línea: | https://nutricionacuicola.uanl.mx/index.php/acu/article/view/100 |
| _version_ | 1824324431858630656 |
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| author | González López, Rocío |
| author_facet | González López, Rocío |
| author_sort | González López, Rocío |
| collection | Artículos de Revistas UANL |
| description | Considering the knowledge on freshwater crayfish feeding requirements and other cultured crustaceans, a practical extruded diet was formulated with the aim to be used for juvenile astacid studies from the onset of exogenous feeding. According to a bifactorial design, the practical diet was compared with the diet which has allowed repeated good survival and growth results (control: feedstuff for trout combined with Artemia cysts) in groups and individually isolated crayfish in an 80-day experiment. Diets tested did not affect final survival rates and growth either in grouped or in isolated crayfish, being the highest survival rate (average: 93%) and growth values (average: 13.2 mm carapace length: CL, 578.1 mg weight: W, 3.52% d-1 specific growth rate: SGR, 1896.6% weight gain: WG) reached with the practical diet. Survival rates did not show significant differences either among crayfish maintained in groups (86 % for the practical diet and 81.7% for the control diet) or among isolated crayfish (100% survival). Isolated crayfish had significantly higher growth (14.3 mm CL, 760 mg W) than the grouped crayfish (11.5 mm CL, 354 mg W). Results show the feasibility of the proposed practical diet as basis for further studies on astacid crayfish. |
| first_indexed | 2025-02-05T19:05:05Z |
| format | Article |
| id | nutrucionacuicola-article-100 |
| institution | UANL |
| language | eng |
| last_indexed | 2025-02-05T19:05:05Z |
| physical | Avances en Nutrición Acuicola; 2011: Memorias del Décimo Primer Simposium Internacional de Nutrición Acuícola Noviembre 23-25, 2011 |
| publishDate | 2011 |
| publisher | Facultad de Ciencias Biologicas |
| record_format | ojs |
| spelling | nutrucionacuicola-article-1002019-10-01T21:44:41Z Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions González López, Rocío Astacid juvenile feeding practical diet Astacid juvenile feeding practical diet Considering the knowledge on freshwater crayfish feeding requirements and other cultured crustaceans, a practical extruded diet was formulated with the aim to be used for juvenile astacid studies from the onset of exogenous feeding. According to a bifactorial design, the practical diet was compared with the diet which has allowed repeated good survival and growth results (control: feedstuff for trout combined with Artemia cysts) in groups and individually isolated crayfish in an 80-day experiment. Diets tested did not affect final survival rates and growth either in grouped or in isolated crayfish, being the highest survival rate (average: 93%) and growth values (average: 13.2 mm carapace length: CL, 578.1 mg weight: W, 3.52% d-1 specific growth rate: SGR, 1896.6% weight gain: WG) reached with the practical diet. Survival rates did not show significant differences either among crayfish maintained in groups (86 % for the practical diet and 81.7% for the control diet) or among isolated crayfish (100% survival). Isolated crayfish had significantly higher growth (14.3 mm CL, 760 mg W) than the grouped crayfish (11.5 mm CL, 354 mg W). Results show the feasibility of the proposed practical diet as basis for further studies on astacid crayfish. Considering the knowledge on freshwater crayfish feeding requirements and other cultured crustaceans, a practical extruded diet was formulated with the aim to be used for juvenile astacid studies from the onset of exogenous feeding. According to a bifactorial design, the practical diet was compared with the diet which has allowed repeated good survival and growth results (control: feedstuff for trout combined with Artemia cysts) in groups and individually isolated crayfish in an 80-day experiment. Diets tested did not affect final survival rates and growth either in grouped or in isolated crayfish, being the highest survival rate (average: 93%) and growth values (average: 13.2 mm carapace length: CL, 578.1 mg weight: W, 3.52% d-1 specific growth rate: SGR, 1896.6% weight gain: WG) reached with the practical diet. Survival rates did not show significant differences either among crayfish maintained in groups (86 % for the practical diet and 81.7% for the control diet) or among isolated crayfish (100% survival). Isolated crayfish had significantly higher growth (14.3 mm CL, 760 mg W) than the grouped crayfish (11.5 mm CL, 354 mg W). Results show the feasibility of the proposed practical diet as basis for further studies on astacid crayfish. Facultad de Ciencias Biologicas 2011-11-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://nutricionacuicola.uanl.mx/index.php/acu/article/view/100 Avances en Nutrición Acuicola; 2011: Memorias del Décimo Primer Simposium Internacional de Nutrición Acuícola Noviembre 23-25, 2011 eng https://nutricionacuicola.uanl.mx/index.php/acu/article/view/100/100 Derechos de autor 2019 Rocío González López |
| spellingShingle | Astacid juvenile feeding practical diet Astacid juvenile feeding practical diet González López, Rocío Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/article.gif |
| title | Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| title_alt | Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| title_full | Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| title_fullStr | Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| title_full_unstemmed | Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| title_short | Recent Advances on Freshwater Crayfish Nutrition: Proposal of a Practical Diet for Juvenile Astacid Crayfish Studies from the Onset of Exogenous Feeding under Controlled Conditions |
| title_sort | recent advances on freshwater crayfish nutrition proposal of a practical diet for juvenile astacid crayfish studies from the onset of exogenous feeding under controlled conditions |
| topic | Astacid juvenile feeding practical diet Astacid juvenile feeding practical diet |
| topic_facet | Astacid juvenile feeding practical diet Astacid juvenile feeding practical diet |
| url | https://nutricionacuicola.uanl.mx/index.php/acu/article/view/100 |
| work_keys_str_mv | AT gonzalezlopezrocio recentadvancesonfreshwatercrayfishnutritionproposalofapracticaldietforjuvenileastacidcrayfishstudiesfromtheonsetofexogenousfeedingundercontrolledconditions |