Avaliação do efeito imunomodulador e carrapaticida de micro-organismos probióticos em bovinos da raça Girolando

Abstract

Tick infestation is the main parasitic diseases that affect the cattle farming. In addition to impairing the health of the animal by means of a hematophagous habit, it also generates economic losses regarding its control, being the use of acaricides the main method used. Its neglected use has led to cases of resistance, which turn necessary the development of alternative methods such as the immunization with vaccines and the use of probiotics. Probiotics are functional food that contains live microorganisms that when ingested in appropriate amount bring benefits to the hosts through different mode of action. Thus, the present work aimed to evaluate the immunomodulatory and acaricide effect of probiotic microorganisms in Girolando cattle. Therefore, during 154 days, 30 animals were distributed in 6 groups, and submitted to different treatments: Group A (control), the animals did not received any treatment. Group B (vaccine effect), on the initial, 14 and 28 days, the animals were immunized with rGST-H1. Group C (probiotic effect EEL, the animals received, for 70 days, a daily dose of 10 mL of the probiotic EEL preparation. Group D (vaccine + probiotic EEL effect), on the initial, 14 and 28 days, the animals were vaccinated and received for 70 days, 10 mL probiotic preparation EEL. Group E (probiotic effect PT), the animals received, for 70 days, a dose of 10 mL of probiotic preparation ProbioTick and Group F (vaccine + PT probiotic effect), on the initial, 14 and 28 days, the animals were vaccinated and received daily for 70 days, 10 mL ProbioTick. In each 14 days blood samples were collected and exams were performed to evaluate hemostasis, anemia status and development of the immune response. The results showed that the different treatments did not affect hemostasis and the erythrocytic parameters of the animals. Regarding the immune system, the results showed that the animals treated with probiotic preparations presented a higher number of lymphocytes when compared to the control group, differing statistically on the 70th day, being that the percentages found for groups C, D, E and F were respectively 55.8%; 63.5%; 60.8% and 59.4%. In addition, animals treated with the probiotic (Groups D and F) and vaccinated (B) showed higher levels of total IgG antibodies (72.769, 93.735 and 98.825 mg/dL) and as for the IgG anti rGST-H1 antibodies, only the animals in Groups D and F had their values increased for a longer period, where on the 98th day, The optical densities measured were 0.868 and 0.915. Therefore, the probiotic preparations evaluated were able to modulate the immune response of animals.

Bactérias ácido lácticas suas características e importância: revisão

“…Foi possível recuperar as bactérias probióticas (Bacillus cereus e B. subtilis) no trato intestinal das tilápia-do-nilo. Teixeira (2017) em uma pesquisa sobre o efeito imunomodulador e carrapaticida de micro-organismos probióticos em bovinos da raça Girolando, submeteu 30 animais a diferentes tipos de tratamento, dentre eles o uso de probióticos isoladamente e associados a vacina. Os animais pertencentes aos grupos vacinados e tratados com preparações probióticas, apresentaram níveis superiores de imunoglobulina G (IgG), mas os animais que receberam apenas preparações probióticas tiveram seus valores aumentados quando comparados, por um período mais prolongado, aos animais que foram vacinados.…”

Pesquisa de mercado para utilização da tecnologia de testes genômicos em bovinos leiteiros no Triângulo Mineiro

“…Os cartões dos testes já disponíveis para comercialização para bovinos leiteiros no Brasil, são para as raças Holandesa, Jersey, Pardo Suíço e mais recentemente, para raça Girolando, conforme descrito no ANEXO B. Os primeiros resultados de análise genômica da raça publicados, permitirá maior confiabilidade na seleção de animais geneticamente superiores, principalmente com seleção para a produção de leite (VIEIRA, 2017). Ainda estão em desenvolvimento os marcadores moleculares e a criação de uma base sólida de dados para outras raças leiteiras, como a Gir.…”