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Revista Científica UDO Agrícola
Universidad de Oriente Press
ISSN: 1317-9152
Vol. 12, No. 2, 2012, pp. 479-485
Bioline Code: cg12054
Full paper language: English
Document type: Research Article
Document available free of charge

Revista Científica UDO Agrícola, Vol. 12, No. 2, 2012, pp. 479-485

 en Culture and nutrient values of Limicolaria aurora check for this species in other resources (Jay, 1989) (Mollusca: Achatinidae) raised in two different substrates
Sogbesan, Olukayode Amos & Ugwumba, Adiaha Alda Alex

Abstract

One hundred adult garden snails Limicolaria aurora check for this species in other resources (Jay, 1989) of weight ranging from 2.7g-3.8g (mean weight 3.25±0.55g) and height 4.2cm -5.1cm (mean 4.65±0.4cm) were cultured in soil substrate and cellulose substrate in wooden boxes (0.9mx0.6mx0.3m) for 84 days. The results of the experiment showed that cellulose substrate was a better substrate for the culture of garden snails than soil. Higher mean weight gain 2.23g/snail, relative growth rate 68.65%, hatchling production of 30 hatchlings/week; feed conversion ratio 7.75 and final condition factor of 1.91 were recorded from cellulose substrate while the control substrate (soil) had the lower result. Growth and feed utilization were not significantly different (p>0.05) in the two substrates with t=0.5115; p=0.3091 and t=0.2011, p=0.4252 respectively. A significantly (p<0.05) high positive correlation r=0.9676 existed between the bi-monthly growth and time in the two substrates. Higher hatching rates of 30 hatchlings/snail were recorded in cellulose substrate while lower hatchling rates of 20 hatchlings/snail were recorded in soil substrate. The hatchling rates were significantly different (p<0.05) between the two substrates. Fish meal had the higher crude protein of 71.46% and garden snail meal had 66.76%. There was no significant difference (p>0.05) between the crude protein content of fish meal and garden snail meat. Based on the results of this study cellulose substrate could be recommended as a substitute for soil in the culture of garden snail and that garden snail could be a reliable substitute for fishmeal in fish and livestock diets.

Keywords
garden snail, cellulose substrate, soil substrate, growth, feed utilization, productivity

 
 es Valores del cultivo y de nutrimentos de Limicolaria aurora check for this species in other resources (Jay, 1989) (Mollusca: Achatinidae) criados en dos diferentes sustratos
Sogbesan, Olukayode Amos & Ugwumba, Adiaha Alda Alex

Resumen

Cien caracoles de jardín adultos de peso entre 2,7 a 3,8 g (promedio 3,25 ± 0,55g) y altura entre 4.2 a 5.1cm (promedio 4,65 ± 0,4cm) se cultivaron en sustrato de suelo y sustrato de celulosa en cajas de madera (0,9 mx0,6mx0,3m) durante 84 días. Los resultados del experimento mostraron que el sustrato de celulosa fue un mejor sustrato para el cultivo de caracol de jardín que el suelo. Mayor ganancia de peso promedio 2,23g/caracol, tasa relativa de crecimiento 68,65%, eficiencia de eclosión 30 eclosiones/semana; tasa de conversión alimenticia 7,75 y factor de condición final 1,91 se registraron en el sustrato de celulosa, mientras que el control tuvo el menor resultado. El crecimiento y la utilización del alimento no fueron significativamente diferentes (p>0,05) en los dos sustratos con t=0,5115, p=0,3091 y t=0,2011, p=0,4252, respectivamente. Una alta correlación positiva y significativa (p<0,05) (r=0,9676) se encontró entre el crecimiento bi-mensual y el tiempo en los dos sustratos. La mayor tasa de eclosión de 30 eclosiones/caracol se registró en el sustrato de celulosa mientras que la menor tasa, 20 eclosiones/caracol se registró en el sustrato de suelo. La tasa de eclosión fue significativamente diferente (p <0,05) entre los dos sustratos. La harina de pescado tuvo la proteína bruta más alta con 71,46% y la harina de caracol de jardín tuvo 66,76%. No hubo diferencias significativas (p>0,05) entre el contenido de proteína cruda de la harina de pescado y la carne de caracol de jardín. Con base en los resultados de este estudio, el sustrato de celulosa pudiera ser recomendado en el cultivo de caracol de jardín

Palabras-clave
caracol de jardín, sustrato de celulosa, crecimiento, utilización alimenticia, productividad

 
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