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PIG FAECES AND PRODUCTION OF EARTHWORMS AND COMPOST  [2005]

Méndez, M.N., Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo. Morelia, Michoacán, México Romero, E., Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo. Morelia, Michoacán, México Villaroel, M. D., Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, México Gómez, B., Colegio de Posgraduados, México

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A 2x2 factorial arrangement with five replications per treatment was utilized to study compost production from pig faeces as substrate, by using two types of earthworms: Californian Red (Eisenia foetida) and Local (Helodrillus foestidus) and two source of humectation: tap water and effluent from a biodigestor. There was not significant (P0.05) interaction for the earthworm specie x source of humectation in any of the indices evaluated. Earthworm gain in weight was significantly (P0.05) better for the Californian Red than for the Local specie. The same significant effect was found for effluent as compared to tap water. Compost production was higher for Californian Red than for Local animals. A small substrate consumption in Californian Red earhworms resulted in a better efficiency in the index of transformation either with tap water or effluent (47.8 and 48.7% respectively) as compared to the Local earthworms (29.2 and 30.9% respectively). The use of effluent from biodigestors improves earthworm growth but neither the amount of compost obtained nor the efficiency of transformation. The local Mexican earthworm, although less efficient, can be attractive for small scale production of compost, since it is locally available and does not affect the cost of production. Key

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Revista Computadorizada de Producción Porcina (Cuba)

ISSN : 1026-9053

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