In vivo assays with natural promoters

Modificación de los índices productivos con Promofeed EE tras una infección experimental

Frecuentemente vemos muchas experiencias en estabularios y granjas experimentales que no reflejan la realidad de campo porque los animales están en condiciones ideales. En condiciones reales, en muchas granjas hay poblaciones de gérmenes patógenos circulantes que producen infecciones subclínicas que sólo se presentan clínicamente en una situación de estrés. No obstante, estas patologías subclínicas, dependiendo de su gravedad, se manifiestan a través de conversiones ligeramente altas y crecimientos retrasados.

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Promofeed EE improves the productive ratios in broilers

promofeed

Design of the assay

A total of 800 Ross broilers were randomly distributed in 2 homogeneous groups, in number and sex of animals (8 trials of 50 birds).

During the assay both groups received the same feed, one being supplemented with avilamycin 10 ppm (group A) and the other with Promofeed 100 ppm (group B).
At 14, 28 and 45 days after the beginning of the treatment, mortality (%), life weight (LW), mean daily weight gain (DWG), feed conversion ratio (FCR) and cost of product were recorded.

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Promofeed EE in the carcass yield of the broiler

Material and methods

A total of 800 Ross broilers were distributed in 2 randomly homogeneous groups. Group A (compound feed supplemented with Avilamycin 10 ppm) and Group B (compound feed added with Promofeed 100 ppm).
At 45 days of life, broilers were slaughtered and internal portions were quartered

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Estudio de eficacia de aceites esenciales ante una infección experimental de Salmonella Enteritidis en gallinas ponedoras en producción

B. Huerta¹, F. Ponsa ², G. Ordóñez ², N. Fernández ³, P. Peñalver¹

1 Departamento de Sanidad Animal, Universidad de Córdoba, Córdoba
2 CESAC, Centre de Sanitat Avícola de Catalunya i Aragó, Reus, Tarragona
3 Real Escuela de Avicultura, Arenys de Mar, Barcelona

Resumen

Ensayo experimental (con 384 gallinas ponedoras IsaBrown de 18 semanas de edad), para establecer la eficiencia de un producto comercial basado en el aceite esencial de Eugenia caryophyllata contra Salmonella Enteritidis. Los resultados obtenidos tras 6 semanas de estudio post- infección en análisis de heces fueron de 8,3% de detección de S. Enteritidis en animales infectados y tratados frente a 12,5% de detección en animales infectados y no tratados. Al final de la prueba se sacrificaron 6 animales de cada grupo de estudio, aislándose S. Enteritidis sólo del pool de hígado, corazón y ciego del grupo infectado pero no tratado.

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Efficacy of Eugenol against a Salmonella enterica serovar Enteritidis experimental infection in commercial layers in production

2008 J. Appl. Poult. Res. 17:376-382
G. Ordoñez², N. Llopis¹, P. Peñalver¹

1 Lidervet S.L., Tarragona, Spain
2 CESAC, Centre de Sanitat Avícola de Catalunya i Aragó, Reus, Spain

Summary

An experimental study (15-week-old ISA Brown pullets) was conducted to establish the efficacy of the essential oil of Eugenia caryophyllata against Salmonella enterica serovar Enteritidis. The trial was composed of 4 groups. Pullets in groups 3 and 4 were fed with a commercial compound feed, and pullets in groups 1 and 2 were fed with the same feed plus the aromatic product at the dose of 250 g/Tm. At 19 weeks old, the pullets in groups 1 and 3 were infected individually with an inoculum of 3.2±0.8x10 7 cfu of Salmonella enterica serovar Enteritidis/pullet. During the postinoculation period, samples of feces and eggs were cultured, and pullets were killed 30 days postinoculation. The aromatic product containing eugenol seems to aid in the cleaning of the intestinal and systemic infections, and it also plays an important role in the control of Salmonella cross contamination in eggs.

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Effect of Dietary Clove Essential Oil on Poultry Meat Quality

P. Hernández, V. Juste, C. Zomeño, J. R. Moreno, P. Peñalver.

Abstract

The aim of this study was to evaluate the effect of clove essential oil dietary supplementation on the meat quality of broilers. A total of 120 animals were used in this experiment. During the final stage of fattening, half of the animals were fed with an experimental diet enriched with 100 ppm of the aromatic product containing clove essential oil and the other half with a control diet. Animals were slaughtered at the same age.

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