IMPACT OF SHEARING ON PARASITE INFESTATION, PERFORMANCE AND HEALTH OF HOLSTEIN ANIMALS

• Grant number: 16/19938-7
• Support Opportunities: Regular Research Grants
• Start date: August 01, 2017
• End date: July 31, 2019
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Preventive Veterinary Medicine
• Principal Investigator: Cecília José Veríssimo
• Grantee: Cecília José Veríssimo
• Host Institution: Instituto de Zootecnia. Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Nova Odessa , SP, Brazil
• Associated scholarship(s): 18/18092-2 - IMPACT OF SHEARING ON PARASITE INFESTATION, PERFORMANCE AND HEALTH OF HOLSTEIN ANIMALS, BP.TT

Abstract

The cattle tick, Rhipicephalus (Boophilus) microplus, is one of the parasites that most cause damages to cattle. This parasite is the main transmitter of tick fever (Anaplasma and Babesia), which cause deaths in dairy herds. The Holstein cattle is one of the most used in crossing with Zebu cattle, and also one of the most susceptible to this parasite. The main hypothesis of this work is that shearing in a Holstein herd reduces the tick load thus reducing the necessity of acaricide application in the herd. The evaluation of the effects of the treatments will be by assessing the infestation of parasites (tick, horn-fly, botfly, Anaplasma and Babesia), performance and health of animals. It will be used 50 cows and 60 calves / heifers distributed in batches as picketing in use, following split plot experimental design with paired blocks. The animals of each lot will be assessed previously for the percentage of black coat, the hair length and tick infestation and animals with similar characteristics within each batch will be distributed in paired blocks receiving alleatory the treatments: shorn (all the body) and not shorn. Paired blocks will be distributed to two tick control treatments: selective control (when the infestation of ticks on one side exceeds 24 ticks) and monthly control, as is done on the property. It intends to start working in the spring, and the shearing will be done every 60 days. This will cover the period of the year that the ambient temperatures and humidity are higher. The benefit of shearing on the animal performance, health and parasite infestation will be verified. According to the results, we may include this practice as an alternative of parasite control. (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GIGLIOTI, RODRIGO; DE OLIVEIRA, HENRIQUE NUNES; GUTMANIS, GUNTA; LUCIANI, GUILHERME FAVERO; AZEVEDO, BIANCA TAINA; DE CARVALHO FIORIN, CRISTIANE FERNANDES; DE ANDRADE, MARIANA FOGALE; FARIA SILVA, MARCO ANTONIO; VERCESI FILHO, ANIBAL EUGENIO; KATIKI, LUCIANA MORITA; et al. Correlations and repeatability betweenBabesiaspp. infection levels using two dairy cattle breeding systems. Experimental and Applied Acarology, v. 81, n. 4, JUL 2020. (16/19938-7)

GIGLIOTI, RODRIGO; DE OLIVEIRA, HENRIQUE NUNES; GUTMANIS, GUNTA; LUCIANI, GUILHERME FAVERO; AZEVEDO, BIANCA TAINA; DE CARVALHO FIORIN, CRISTIANE FERNANDES; DE ANDRADE, MARIANA FOGALE; FARIA SILVA, MARCO ANTONIO; VERCESI FILHO, ANIBAL EUGENIO; KATIKI, LUCIANA MORITA; et al. Correlations and repeatability between Babesia spp. infection levels using two dairy cattle breeding systems. Experimental and Applied Acarology, v. 81, n. 4, p. 9-pg., 2020-07-16. (16/19938-7)

MARIANA FOGALE DE ANDRADE; RODRIGO GIGLIOTI; GUNTA GUTMANIS; BIANCA TAINÁ AZEVEDO; CRISTIANE FERNANDES DE CARVALHO FIORIN; ANIBAL EUGÊNIO VERCESI FILHO; LUCIANA MORITA KATIKI; CECÍLIA JOSÉ VERÍSSIMO. Controle seletivo de Rhipicephalus microplus em rebanho leiteiro de diferentes grupos genéticos. Revista Brasileira de Parasitologia Veterinária, v. 31, n. 4, 2022-12-16. (16/19938-7)

JULIA L. RIBAS; CECÍLIA J. VERÍSSIMO; GUNTA GUTMANIS; MARIANA F. ANDRADE; ENÍLSON G. RIBEIRO; LUCIANA M. KATIKI. Controle da larva de Dermatobia hominis com extração manual é efetivo e não causa abscesso. Pesquisa Veterinária Brasileira, v. 43, 2023-11-10. (16/19938-7)

DE ANDRADE, MARIANA FOGALE; GIGLIOTI, RODRIGO; GUTMANIS, GUNTA; AZEVEDO, BIANCA TAINA; FIORIN, CRISTIANE FERNANDES DE CARVALHO; VERCESI FILHO, ANIBAL EUGENIO; KATIKI, LUCIANA MORITA; VERFSSIMO, CECFLIA JOSE. Selective control of Rhipicephalus microplus in a dairy cattle herd from different genetic groups. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA, v. 31, n. 4, p. 10-pg., 2022-01-01. (16/19938-7)