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Zootecnia Tropical
Instituto Nacional de Investigaciones Agrícolas Venezuela
ISSN: 0798-7269
Vol. 27, No. 1, 2009, pp. 1-5
Bioline Code: zt09001
Full paper language: Spanish
Document type: Research Article
Document available free of charge

Zootecnia Tropical, Vol. 27, No. 1, 2009, pp. 1-5

 es Digestibilidad verdadera de harina de plumas fermentadas por Kocuria rosea check for this species in other resources en gallos adultos
Alvarez, Ramón; Bertsch, Annalisse & Coello, Nereida

Resumen

Se compararon las digestibilidades verdaderas de la materia seca, proteína cruda, cenizas y extracto etéreo de las harinas de plumas fermentadas por la bacteria Kocuria rosea check for this species in other resources (HPF) y la comercial (HPC) en gallos adultos, mediante una prueba de balance. Se utilizó un diseño completamente aleatorizado con 10 aves por tratamiento y 10 adicionales para las evaluaciones del endógeno. Los resultados indican que la materia seca de la HPF fue significativamente superior y mas digestible (P<0,01) respecto a la HPC. El producto fermentado principalmente contiene proteína cruda (67%) cuya digestibilidad es superior al 85% y equivalente a la de la harina comercial. Aunque contiene 45% menos de grasa, ésta se digiere más (P<0,01) que la presente en la HPC. Caso contrario ocurre con los minerales, pero aunque la digestibilidad es menor (P<0,01) en la HPF, los niveles de estos casi cuadruplican a los contenidos en la HPC. Los resultados obtenidos confirman que la harina de plumas fermentadas por Kocuria rosea, además de ser principalmente una fuente alternativa de proteína para las aves, puede también ser nutricionalmente mejor aprovechada por estos animales que la comercial.

Palabras-clave
Kocuria rosea, plumas, fermentación, gallos adultos.

 
 en True digestibility of feather flour fermented by Kocuria rosea check for this species in other resources in adult roosters
Alvarez, Ramón; Bertsch, Annalisse & Coello, Nereida

Abstract

Dry matter (DM), crude protein, ash, and ethereous extract true digestibility of feathers flour fermented by Kocuria rosea check for this species in other resources (FFM) and commercial (CFM) were compared in adult roosters by means of a balance test. It was used a completely randomized design, with 10 birds by treatment and 10 additional for the evaluations of endogenous. As for the results, DM levels of the FFM are significantly higher and more digestible with regard to the CFM. The product fermented principally contains protein (67%) whose digestibility is superior to 85% and equivalently to that of the commercial flour. Though it contains 45% less fat, it was digested more (P<0.01) than the present in the CFM. Opposite case happens with the minerals, but though the digestibility is lower (P<0.01) in the FFM, the levels of these almost quadruple to the contents in the FFC. Results confirm that the fermented feathers flour by Kocuria, beside being principally an alternative source of protein for the birds, can be also nutritionally better taken advantage by these animals that the commercial one.

Keywords
Kocuria rosea, feathers, fermentation, adult roosters.

 
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