Alteração da carga de carrapatos de bovinos sob a ingestão de diferentes níveis do resíduo do beneficiamento do alho

Abstract

RESUMOTrinta bovinos machos, mestiços, castrados, provenientes de rebanhos leiteiros do sul de Minas, foram utilizados para avaliar o efeito da ministração de resíduo do beneficiamento do alho (RBA) na alimentação de bovinos sobre o desempenho e a alteração da carga de carrapatos. Foram utilizados cinco tratamentos com quatro níveis de RBA (0, 3, 6 e 9 gramas, misturados em 220 gramas de sal proteinado) e um tratamento constituído de ectoparasiticida comercial injetável sem RBA. Não houve efeito do ectoparasiticida e do fornecimento do RBA na variação de peso. A partir do 56° dia, o ectoparasiticida comercial foi mais eficiente (P < 0,05) no controle de carrapatos, quando comparado ao RBA. Houve redução da carga parasitária para os animais que receberam o RBA (3, 6 e 9 g) em relação ao grupo-controle (0 g), mostrando a eficiência (P < 0,05) do RBA como parasiticida. Pode-se concluir que o RBA nos níveis utilizados apresentou efeito no controle da carga de carrapatos, sem afetar o desempenho dos animais.Termos para indexação: Ruminante, ectoparásito, sub-produto. ABSTRACTThirty crossbred steers from milk herds of the South of Minas Gerais, were used to evaluate the effect of supply garlic residues (GR) in the feed, on the performance and the alteration of the load of ticks in cattle. Five treatments with four levels of GR were used (0, 3, 6 and 9 grams, mixed in 220 grams of mineral salt) and one treatment with injectable commercial ectoparasiticide without GR. There was no effect (P > 0.05) of the ectoparasiticide and the supply of the GR on the weight variation. Since 56 days, the commercial ectoparasiticide was more efficient (P < 0,05) in the control of ticks, when compared with the GR. Reduction of the parasitic load was observed for animals receiving GR (3, 6 and 9 g) when compared with control group (0 g), showing the efficiency (P < 0,05) of the GR as parasiticide. It can be concluded that the GR presented effect in the control of the load of ticks, without affecting the performance of the animals.

Efficiency of sulphur in garlic extract and non-sulphur homeopathy in the control of the cattle tick Rhipicephalus (Boophilus) microplus

“…In the present study, administration of a sulphur‐containing product derived in part from garlic (Enxofre‐ Allium sativum ® ) led to a significant decrease in the number and weight of engorged female ticks, and reduced their oviposition by approximately 12%. Insect repellent, insecticidal and/or acaricidal properties have been detected in extracts of numerous plants, including garlic (Heal et al , 1950; Osmani et al , 1972; Chungsamarnyart et al , 1988; Mansingh & Williams, 1998), and a range of scientific studies have confirmed the activity of this herb (Amonkar & Banerji, 1971; Bhuyan, 1974; Jarial, 2001; Stjernberg & Berglund, 2001; Alvarenga et al , 2004). Sulphur compounds appear to be largely responsible for the acaricidal activity of garlic, although such components exhibit large variations according to both environmental and genetic factors, as well as the stage of development of the plant (Amonkar & Banerji, 1971; Tunón, 2001; Calvo‐Gomez et al , 2004).…”

1. Livestock pests and vector-borne diseases – a much neglected subject

“…An extract of Allium sativum supplied daily to animals in their concentrate supplement presented an overall efficiency of 64% compared to animals that did not receive the extract (Costa-Júnior and Furlong 2011). A similar study tested three different concentrations of residue from garlic processing and the animals with the highest ingestion of the residue had correspondingly less ticks and were not affected in weight gain (Alvarenga et al 2004).…”

Back Matter

“…An extract of Allium sativum supplied daily to animals in their concentrate supplement presented an overall efficiency of 64% compared to animals that did not receive the extract (Costa-Júnior and Furlong 2011). A similar study tested three different concentrations of residue from garlic processing and the animals with the highest ingestion of the residue had correspondingly less ticks and were not affected in weight gain (Alvarenga et al 2004).…”