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VetMed Resource

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Abstract

Tick counts were made on 18 occasions on 215 female cattle of 6 Holstein-Friesian (HF)-Guzerat crossbred types containing 25, 50, 62.5, 75, 87.5 or ≥96.9% HF blood. There were 506 observations on 142 animals sired by 25 HF bulls, 90 observations on 30 animals sired by 7 crossbred bulls containing...

Author(s)
Madalena, F. E.; Teodoro, R. L.; Lemos, A. M.; Oliveira, G. P.
Citation
Revista Brasileira de Genética, 1985, 8, 2, pp 361-375
Abstract

Tick burdens on heifers and cows of 6 Red-and-White Holstein × Guzerat grades having 1/4-, 1/2-, 5/8-, 3/4-, 7/8- or ≥ 31/32- Holstein blood were assessed by counting the number of semi-engorged female ticks on the right side of the animals. Assessments of tick burdens of heifers were made on 2...

Author(s)
Lemos, A. M.; Teodoro, R. L.; Oliveira, G. P.; Madalena, F. E.
Citation
Animal Production, 1985, 41, 2, pp 187-191