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| Fraga, R.; Carrillo, M.; Pedroso, H.. |
| Se evaluaron las pérdidas que Lasioderma serricorne (F.) y Araecerus fasciculatus (De G.), ocasionaron en el cacao almacenado durante tres meses bajo condiciones controladas de temperatura (28 ± 2 ºC) y humedad relativa (73 %). Se determinó el consumo de materia seca de cada estadio biológico activo y la pérdida de peso, los granos dañados y la producción de polvo, ocasionada por cada especie durante su desarrollo. Los estadios larval y adulto de L. sericorne fueron los que mayor cantidad de cacao ingirieron, alcanzando valores de 6,76 y 0,81 mg, respectivamente. A los 90 días de almacenamiento, la especie L. serricorne ocasionó 20,3 % de pérdida en peso, 31,5 % de granos dañados y 14,8 % de producción de polvo. |
| Tipo: Journal Contribution |
Palavras-chave: Weight; Storage; Temperature; Cocoa beans; Weight losses; Spoilage; Humidity; Pests. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/5011 |
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| Díaz, V.; Fraga, I.; Fraga, R.; González, M.; Pérez, O.; Escobar, A.; Contreras, R.; Morales, N.. |
| The effects of artificial diets were studied with different store times, between 1 week and 6.5 months in juveniles culture shrimps in fattening phase. The artificial diets were stored at environmental temperature. The quality of raw materials and finished products were controlled during the storage time with physical, chemical, organoleptical and entomological analysis also it was evaluated the growth, protein efficiency, the food conversion factor and the survival of the shrimps. The nutriments affected during storage were the proteins, lipids and the % of free fatty acids, due fundamentally to the contamination with acarids and insects. It was found that the growth and protein efficiency of juveniles shrimps decreased with the age of the feed, without... |
| Tipo: Proceedings Paper |
Palavras-chave: Shrimp culture; Artificial feeding. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/2076 |
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