Effect of varying levels of quantities of water on the quantity and quality of maggot production from two substrates
Anene Afamdi, Ukpabi H. Ugochukwu, Igwilo U. Janefranciss
Резюме: A maggot production study was conducted. In this experiment maggots were grown on 10 kg of two substrates (cattle blood and poultry droppings) treated with same levels of sawdust but at 0.5, 1.0 and 2.0 liters of inclusion of water. Each treatment was replicated three times. Harvesting of maggots was done by the use of sedimentation techniques (S.T). Maggots harvested from each replicate were weighed to the nearest 0.1 g when wet to obtain the wet weight (W1) and then weighed again after drying to a constant weight at 35 ○C in an oven to obtain the dry weight (W2). All the weighing was done using a Mettler’s digital balance. Dried maggot samples were subjected to proximate analysis. Data obtained in each measured parameter were subjected to analysis of variance. These results
showed that there were no differences (p > 0.05) in the wet weight of maggots produced from the two substrates containing varying levels of water inclusion while there were differences (p < 0.05) in the dry weight of maggots produced from the two substrates containing varying levels of water inclusion. Cattle blood produced maggots of higher (p < 0.05) crude protein content of 37.20% and 39.9% in substrates containing 0.5 and 1.0 liter of water, respectively. The corresponding crude protein values for poultry dropping substrates were 35.3 and 22.54%. There are differences (p < 0.05) in the percentage of ether extract in maggots produced from cattle blood. These values were 20.47%, 14.55% and 15.27% at 2.0, 1.0 and 0.5 l of added water respectively. Crude fiber content of maggots differed significantly (p < 0.05) especially with respect to those produced from poultry manure. The result also
shows that maggots produced from poultry droppings recorded 30.45% and 22.32% at 1.0 and 2.0 l of water. Peak crude fiber levels in maggots produced from cattle blood was recorded at 2.0 l of water.
showed that there were no differences (p > 0.05) in the wet weight of maggots produced from the two substrates containing varying levels of water inclusion while there were differences (p < 0.05) in the dry weight of maggots produced from the two substrates containing varying levels of water inclusion. Cattle blood produced maggots of higher (p < 0.05) crude protein content of 37.20% and 39.9% in substrates containing 0.5 and 1.0 liter of water, respectively. The corresponding crude protein values for poultry dropping substrates were 35.3 and 22.54%. There are differences (p < 0.05) in the percentage of ether extract in maggots produced from cattle blood. These values were 20.47%, 14.55% and 15.27% at 2.0, 1.0 and 0.5 l of added water respectively. Crude fiber content of maggots differed significantly (p < 0.05) especially with respect to those produced from poultry manure. The result also
shows that maggots produced from poultry droppings recorded 30.45% and 22.32% at 1.0 and 2.0 l of water. Peak crude fiber levels in maggots produced from cattle blood was recorded at 2.0 l of water.
Ключови думи: cattle blood; maggot; poultry droppings; saw dust; substrates
Дата на публикуване: 2021-02-26
Свали пълен текст