Formulation of integrated control of Boophilus microplus in Paraguay: Analysis of natural infestations

被引:23
作者
Brizuela, CM
Ortellado, CA
Sanchez, TI
Osorio, O
Walker, AR
机构
[1] MINIST AGR & CANADERIA,LAB INVEST & DIAGNOST VET,SAN LORENZO,PARAGUAY
[2] CTR TROP VET MED,ROSLIN EH25 9RG,MIDLOTHIAN,SCOTLAND
关键词
Boophilus microplus; cattle arthropoda; seasonal dynamics; control methods arthropoda;
D O I
10.1016/0304-4017(95)00885-3
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 [理学]; 0710 [生物学]; 09 [农学]; 100103 [病原生物学];
摘要
A 3-year study into the seasonal variation in the numbers of Boophilus microplus ticks infesting three breeds of beef cattle in Paraguay was carried out to provide the basic data necessary to formulate tick control recommendations. The effect of tick burden on weight gain was also analysed. Economic parameters for tick control were calculated. Half body counts of standard female B. microplus were carried out every 2 weeks, at the same time engorged female ticks were placed in the field to observe time to oviposition, larval hatching and 50% survival time. Cattle were weighed every 2 months. Peak tick burdens were encountered in late autumn, with a winter low. Observations of the non-parasitic cycle of the tick suggested that four generations year(-1) were possible. High tick burdens were well correlated to low weight gains or weight losses, depending on the breed of cattle. Compensatory weight gains were seen in all three breeds at the end of winter when tick burdens decreased. The economic threshold for tick treatment was calculated at 53 and 54 ticks per animal in 2 separate years of the study. Recommendations for tick control programmes are given.
引用
收藏
页码:95 / 108
页数:14
相关论文
共 14 条
[1]
AMERAULT TE, 1968, J AM VET MED ASSOC, V153, P1828
[2]
ECOLOGY OF THE CATTLE TICK (BOOPHILUS-MICROPLUS) IN SUB-TROPICAL AUSTRALIA .3. MODELING POPULATIONS ON DIFFERENT BREEDS OF CATTLE [J].
BOURNE, AS ;
SUTHERST, RW ;
SUTHERLAND, ID ;
MAYWALD, GF ;
STEGEMAN, DA .
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1988, 39 (02) :309-318
[3]
CARDOZO H, 1984, ECOLOGICAL STUDIES V, V20, P4
[4]
HITCHCOCK L. F., 1955, AUSTRALIAN JOUR ZOOL, V3, P295, DOI 10.1071/ZO9550295
[5]
INDIRECT FLUORESCENT-ANTIBODY TEST FOR DIFFERENTIATION OF INFECTIONS WITH BABESIA-DIVERGENS OR BABESIA-MAJOR [J].
JOYNER, LP ;
DONNELLY, J ;
PAYNE, R ;
BROCKLESBY, DW .
RESEARCH IN VETERINARY SCIENCE, 1972, 13 (06) :515-518
[6]
*MIN AGR GAN I INT, 1985, PROYECT LUCH CONTR G
[7]
A FRAMEWORK FOR INTEGRATING CONTROL METHODS AGAINST THE CATTLE TICK, BOOPHILUS-MICROPLUS IN AUSTRALIA [J].
NORTON, GA ;
SUTHERST, RW ;
MAYWALD, GF .
JOURNAL OF APPLIED ECOLOGY, 1983, 20 (02) :489-505
[8]
PRESENCE OF BABESIA-BOVIS (B-ARGENTINA) IN PARAGUAY [J].
QUINLAN, JF .
TROPICAL ANIMAL HEALTH AND PRODUCTION, 1978, 10 (03) :178-178
[9]
CATTLE TICK IDENTIFICATION AND SEASONAL-VARIATION IN INFESTATION RATES IN PARAGUAY [J].
QUINLAN, JF ;
SCARONE, CA ;
LANERI, JL .
TROPICAL ANIMAL HEALTH AND PRODUCTION, 1980, 12 (04) :259-264