Doença de Newcastle

A doença de Newcastle (DN) tem controle oficial pelo Ministério da Agricultura, Pecuária e Abastecimento(Brasil 2099 a, b), no Programa Nacional de Sanidade Avícola (PNSA). Nos estados,sob a coordenação do MAPA, os Institutos Estaduais de Agropecuária(em Minas Gerais, o IMA) são os atores do PNSA. A DN é exótica na avicultura industrial brasileira e eventuais focos devem ser erradicados, conforme as recomendações da Organização Mundial de Saúde Animal, para que o país esteja em conformidade para exportação [25].

Doença de Newcastle

A doença de Newcastle (DN) tem controle oficial pelo Ministério da Agricultura, Pecuária e Abastecimento(Brasil 2099 a, b), no Programa Nacional de Sanidade Avícola (PNSA). Nos estados,sob a coordenação do MAPA, os Institutos Estaduais de Agropecuária(em Minas Gerais, o IMA) são os atores do PNSA. A DN é exótica na avicultura industrial brasileira e eventuais focos devem ser erradicados, conforme as recomendações da Organização Mundial de Saúde Animal, para que o país esteja em conformidade para exportação [25].

The effects of a combination of garlic, oyster mushroom and propolis extract in comparison to antibiotic on growth performance, some blood parameters and nutrients digestibility of male broilers

A study was conducted to evaluate the combined effects of garlic, oyster mushroom and propolis extract on the growth performance, organ weights, antibody response to Newcastle Disease Virus (NDV), serum lipid concentrations and nutrient digestibility of male broilers. A total of 192 day old chicks (Ross 308) were randomly assigned to 3 treatments with 4 replications (16 birds per replication). Experimental treatments were a maize- soybean based diet as control, control diet supplemented with a combination of garlic (30 g/kg), oyster mushroom (2 g/kg) and propolis extract (0.2 g/kg) known as GMP, and control diet supplemented with Virginamycin (0.25 g/kg) as antibiotic. The inclusion of GMP decreased (p < 0.05) live body weight, average daily gain and feed intake but had no effect on feed conversion ratio when compared to control diet. GMP and antibiotic had no effects on relative weight of organs. Antibiotic decreased (p < 0.05) the relative weight of small intestine segments. GMP decreased total cholesterol but did not affect other serum lipids when compared to control group. Antibiotic increased (p < 0.05) cholesterol concentration in serum. The inclusion of GMP to the diet improved antibody response to NDV when compared to control and antibiotic diets. In conclusion, the results showed that GMP decreased growth performance but improved immunity of broiler chickens. More studies should be performed to confirm the action modes of such combinations.(AU)

Effects of cinnamon, thyme and turmeric infusions on the performance and immune response in of 1- to 21-day-old male broilers

This study was conducted to investigate the effects of the replacement of drinking water by herb infusions on the performance, relative weight of internal organs, hematocrit and immune response to Newcastle disease virus of broiler chickens. A total of 540 male broiler chicks (Ross 308) were divided into five groups, corresponding to four different treatments and one control group. Treatments were replicated eight times, and the control group four times. Experimental treatments included infusions (5 grams per liter) of cinnamon, thyme and turmeric in equal ratios in replacement of drinking water. Experimental period lasted 21 days and all chicks were fed with a corn-soybean based diet. Results showed that all herbs infusions caused significant (p<0.05) decrease in live body weight compared with the control group at 21 days of age. Mix treatment significantly decreased relative carcass weight relative to the control group (p<0.05). Herbs infusions increased the relative weight of some organs. None of herb additives affected hematocrit in comparison to control group. Cinnamon and herb mix infusion significantly improved bird immune response to the NDV vaccine in comparison to the control group and those that received only turmeric infusion. When all in-water additives were compare to each other, the birds supplemented with turmeric infusion showed the worst performance and immunity. The results of this experiment suggest that these herbs infusions did not favor the performance of broiler chickens.(AU)