Artigo Publicado em Periódico (EMV)

Prevalência de Staphylococcus aureus no parto em vacas mestiças criadas sob regime semi intensivo de produção leiteira

Thu, 01 Oct 2015 00:00:00 GMT

Prevalência de Staphylococcus aureus no parto em vacas mestiças criadas sob regime semi intensivo de produção leiteira Pozzati, Pricilla; Casagrande, Fernando Passon; Leme, Fabiola de Oliveira Paes Amostras de leite foram coletadas de 25 vacas mestiças, pluríparas, a fim de realizar cultura bacteriana. A prevalência de Staphylococcus aureus encontrada em 25 vacas no momento do parto foi de 56%. Os resultados indicam a necessidade de controle e implementação de métodos de prevenção e mastite infecciosa. PUBVET - Publicações em Medicina Veterinária e Zootecnia Artigo de Periódico

Eficácia in vitro de extratos de Chenopodium ambrosioides sobre teleóginas de Rhipicephalus (Boophilus) microplus

Tue, 01 Jan 2013 00:00:00 GMT

Eficácia in vitro de extratos de Chenopodium ambrosioides sobre teleóginas de Rhipicephalus (Boophilus) microplus Almança, C. C. J.; Pozzatti, P. N.; Casagrande, Fernando Passon; Silva Filho, J. P.; Bissi, B.; Barbosa, B. C.; Porfírio, L. C. usada popularmente por suas propriedades antiparasitárias. Avaliou-se com este estudo a eficácia in vitro de extratos hidroetanólicos de C. ambrosioides sobre a postura e a eclodibilidade larval de Rhipicephalus (Boophilus) microplus (Canestrini, 1888) (Acari: Ixodidae), usando o teste de imersão de fêmeas ingurgitadas adultas. Os tratamentos foram constituídos por extratos feitos com 5%, 10% e 25% de C. ambrosioides (massa/volume), água destilada e veículo (constituído de propilenoglicol a 5%, etanol a 25% e água destilada). Dez teleóginas foram distribuídas de forma homogênea para cada grupo e imersas por 5 minutos em cada um dos extratos testados. Os extratos feitos com 5%, 10% e 25% de C. ambrosioides apresentaram eficácias médias de 13,27%, 22,56% e 31,87%, respectivamente. Estes resultados indicam que, nas concentrações usadas, os extratos de C. ambrosioides não apresentam potencial para o controle das cepas pesquisadas de R. (B.) microplus. Artigo de Periódico

Body Fat of Broiler Chickens Fed Diets with Two Fat Sources and Conjugated Linoleic Acid

Sun, 01 Jan 2006 00:00:00 GMT

Body Fat of Broiler Chickens Fed Diets with Two Fat Sources and Conjugated Linoleic Acid Zanini, S. F.; Colnago, G. L.; Pessotti, B. M. S.; Bastos, M. R.; Casagrande, Fernando Passon; Lima, V. R. The aim of this research was to evaluate the effect of CLA association with two vegetable oil sources on the body fat of broiler chickens. Broilers were distributed in a completely randomized factorial design 2 x 5 (two oil sources, i.e. soybean or canola oil and five levels of CLA supplementation, i.e. 0.0, 2.5, 5.0, 7.5 and 10.0 g/kg). For both sexes, supplementation with canola oil resulted in heavier birds (P<0.05) when compared to soybean oil. The effect of CLA supplementation on final body weight of female birds was significant and explained by a linear response (P<0.05). A linear reduction in abdominal fat pad content was observed on females receiving canola oil and CLA (P<0.05). Canola oil fed male and female birds had a reduction in relative liver weight (P<0.05) when compared to soybean oil fed birds. The supplementation of CLA resulted in lower relative liver weight in females birds fed canola oil when compared to that of females receiving soybean oil diets. Total serum cholesterol was lower (P<0.05) in females fed canola oil when compared to that of females fed soybean oil. Birds fed soybean oil had a higher (P<0.05) fat liver content than those birds receiving canola oil. These results confirm the observation of heavier (P<0.05) livers for birds receiving soybean oil in comparison with those receiving canola oil. Artigo de Periódico

Oxidative stability and total lipids on thigh and breast meat of broilers fed diets with two fat sources and supplemented with conjugated linoleic acid

Sun, 01 Jan 2006 00:00:00 GMT

Oxidative stability and total lipids on thigh and breast meat of broilers fed diets with two fat sources and supplemented with conjugated linoleic acid Zanini, S. F.; Colnago, G. L.; Bastos, M. R.; Pessotti, B. M. S.; Casagrande, Fernando Passon; Lima, V. R. Two hundred broiler chickens of 21 days of age were distributed in a completely randomized factorial arrangement 2×5 (two oil sources, i.e. soybean or canola oil and five levels of CLA supplementation, i.e. 0.0%, 0.25%, 0.50%, 0.75% and 1.00%). The purpose of this study was to evaluate the dietary supplementation of broiler diets with CLA and oil sources on the lipid content and on the oxidative stability of chicken meat submitted to refrigeration or freezing storage temperatures. The use of canola oil and increasing CLA levels resulted in a linear reduction (P<0.05) on the total lipids in breast meat. These results can explain a linear reduction (P<0.05) observed in the malonaldehyde content of refrigerated and frozen meat of birds receiving canola oil. Birds receiving soybean oil and supplemented with CLA showed an abrupt reduction of total lipids on breast meat from 0.89g/100g at 0% CLA to 0.36g/100g at 0.5% CLA followed by a small increase at higher levels of CLA (P<0.05). These observations may help to explain the reduction (P<0.05) of oxidation in breast meat during frozen storage at 50 and 100 days as well as during cold storage at 5°C. Artigo de Periódico