Growing hairs in shorn cattle / Crescimento do pelo em bovinos tosquiados
José Veríssimo, Cecília; D'Agostino, Selma; Pessoa, Fernanda; Macedo de Toledo, Luciandra; Maria Roncato Duarte, Keila.
B. Indústr. Anim.;
702013.
Artigo
em Inglês
| VETINDEX
| ID: vti-467250
Resumo
The shearing operation can provide double benefits to the cattle: they can become more heat tolerant and the tick infestation decreases. The cattle tick Rhipicephalus (Boophilus) microplus causes great losses to dairy cattle, especially to the Holstein cattle because they are very susceptible to this tick. Its control is becoming each day more difficult, owing to the increasing resistance to acaricides they are acquiring. The objective of this work was to study the growing of haircoat following shearing. We made our experiment with 17 animals, 7 females and 10 males. They were shaved on the anterior third (head, neck, dewlap, scapula and arm) of one side, at random. The work was performed in two steps: they were shorn for the first time on August 2nd 2012, with a size 10 blade in a clipper Oster model GoldenA5, which left the fur coat 2 mm long. Then we evaluated the hair length growing by collecting fortnightly three sample of hairs in the middle of the scapula, with electric pliers, modified for this purpose, in both sides of the animals, sheared and non-sheared, until 30 days after this shearing. The three hair samples were put inside a little plastic bag per animal. Meanwhile, as we thought that the animals shearing had to be done closer to the skin, we decided to shear them again (in the same side shorn before), on October 2nd 2012. We changed our procedure using the sameO artigo não apresenta resumo em português.
Biblioteca responsável:
BR68.1
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