Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)

The purpose of this study was to determine hemogram reference values, and sex, age, weight, climate, breeding and feeding system physiological modifications in bullfrog, Rana catesbeiana. Three hundred and two healthy animals (both sexes, 9–21 months old), were studied in breeding places in northeas...

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Autores principales: Fioranelli, Santiago Alejo, Mussart, Norma Beatriz, Coppo, José Antonio
Formato: Artículo
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias 2022
Materias:
Rana catesbeiana
Hemogram
Liveweight
Breeding system
Feeding type
Climatic changes
Hemograma
Peso vivo
Sistema de criação
Alimentação
Mudanças estacionais
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48922
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-48922
record_format dspace
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Español
topic Rana catesbeiana
Hemogram
Liveweight
Breeding system
Feeding type
Climatic changes
Rana catesbeiana
Hemograma
Peso vivo
Sistema de criação
Alimentação
Mudanças estacionais
spellingShingle Rana catesbeiana
Hemogram
Liveweight
Breeding system
Feeding type
Climatic changes
Rana catesbeiana
Hemograma
Peso vivo
Sistema de criação
Alimentação
Mudanças estacionais
Fioranelli, Santiago Alejo
Mussart, Norma Beatriz
Coppo, José Antonio
Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)
topic_facet Rana catesbeiana
Hemogram
Liveweight
Breeding system
Feeding type
Climatic changes
Rana catesbeiana
Hemograma
Peso vivo
Sistema de criação
Alimentação
Mudanças estacionais
description The purpose of this study was to determine hemogram reference values, and sex, age, weight, climate, breeding and feeding system physiological modifications in bullfrog, Rana catesbeiana. Three hundred and two healthy animals (both sexes, 9–21 months old), were studied in breeding places in northeast Argentina. Reference intervals for hematocrit (28.6–31.6%), erythrocytes (0.40–0.44 T/l), hemoglobin (6.41–7.20 g/dl), MCV (686–732 fl), MCH (151–164 pg) and MCHC (22.6–24.0%) were obtained. When these values are compared to those from other species, erythrocytes and hemoglobin low concentrations as well as MCV and MCH high values stood out. Weights correlated significantly with ages (r=0.82, p=0.02) but they were lower than those obtained in the same lapse on high technology hatcheries; in northeast Argentina the sacrifice weight (170 g) is achieved at 12 months rather than at 6–7 months. On adult frogs (older than 12 months), higher weights were registered in those fed naturally in lagoons, and those fed on balanced pellets (45% of proteins) and worms placed on the floor. The lowest weights were verified in frogs fed on bovine viscera (milled lung) floating on the water. When age and weight increased (growth advance), hematocrit, erythrocytes and hemoglobin values increased significantly, at the same time that MCH diminished. Although the weight and hemogram values from females were lightly higher than those from males, no significant differences between sexes were found. Lower weight gains and diminished hematic values, were registered during winter. The use of hemogram to evaluate nutritional and sanitary state is suggested, since its application is a way to improve the frog meat production.
format Artículo
author Fioranelli, Santiago Alejo
Mussart, Norma Beatriz
Coppo, José Antonio
author_facet Fioranelli, Santiago Alejo
Mussart, Norma Beatriz
Coppo, José Antonio
author_sort Fioranelli, Santiago Alejo
title Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)
title_short Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)
title_full Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)
title_fullStr Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)
title_full_unstemmed Breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (Rana catesbeiana)
title_sort breeding system, feeding type, and climate change effects on weight and hemogram values of bullfrog (rana catesbeiana)
publisher Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48922
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