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Results: 24
Authors:
NORVAL RAI
SUTHERST RW
JORGENSEN OG
KERR JD
Citation: Rai. Norval et al., THE EFFECTS OF THE BONT TICK, AMBLYOMMA-HEBRAEUM, ON MILK-PRODUCTION OF SANGA AND SANGA X BRAHMAN CATTLE, Medical and veterinary entomology, 11(2), 1997, pp. 143-147
Authors:
NORVAL RAI
SUTHERST RW
KURKI J
KERR JD
GIBSON JD
Citation: Rai. Norval et al., THE EFFECTS OF THE BROWN EAR-TICK, RHIPICEPHALUS-APPENDICULATUS, ON MILK-PRODUCTION OF SANGA CATTLE, Medical and veterinary entomology, 11(2), 1997, pp. 148-154
Authors:
NORVAL RAI
SUTHERST RW
GIBSON JD
KERR JD
THORNE LM
ELLENHAUGE A
Citation: Rai. Norval et al., THE EFFECTS OF THE BROWN EAR-TICK, RHIPICEPHALUS-APPENDICULATUS, ON MILK-PRODUCTION IN DAIRY-CATTLE, Medical and veterinary entomology, 11(2), 1997, pp. 155-158
Authors:
DEEM SL
DONACHIE PL
NORVAL RAI
MAHAN SM
Citation: Sl. Deem et al., COLOSTRUM FROM DAMS LIVING IN A HEARTWATER-ENDEMIC AREA INFLUENCES CALFHOOD IMMUNITY TO COWDRIA-RUMINANTIUM (VOL 61, PG 133, 1996), Veterinary parasitology, 65(3-4), 1996, pp. 317-317
Authors:
DEEM SL
NORVAL RAI
DONACHIE PL
MAHAN SM
Citation: Sl. Deem et al., DEMONSTRATION OF VERTICAL TRANSMISSION OF COWDRIA-RUMINANTIUM, THE CAUSATIVE AGENT OF HEARTWATER, FROM COWS TO THEIR CALVES, Veterinary parasitology, 61(1-2), 1996, pp. 119-132
Authors:
DEEM SL
DONACHIE PL
NORVAL RAI
Citation: Sl. Deem et al., COLOSTRUM FROM DAMS LIVING IN A HEARTWATER ENDEMIC AREA INFLUENCES CALFHOOD IMMUNITY TO COWDRIA-RUMINANTIUM, Veterinary parasitology, 61(1-2), 1996, pp. 133-144
Authors:
SONENSHINE DE
ALLAN SA
NORVAL RAI
BURRIDGE MJ
Citation: De. Sonenshine et al., A SELF-MEDICATING APPLICATOR FOR CONTROL OF TICKS ON DEER, Medical and veterinary entomology, 10(2), 1996, pp. 149-154
Authors:
DEEM SL
NORVAL RAI
YONOW T
PETER TF
MAHAN SM
BURRIDGE MJ
Citation: Sl. Deem et al., THE EPIDEMIOLOGY OF HEARTWATER - ESTABLISHMENT AND MAINTENANCE OF ENDEMIC STABILITY, Parasitology today, 12(10), 1996, pp. 402-405
Authors:
NORVAL RAI
SUTHERST RW
KERR JD
Citation: Rai. Norval et al., INFESTATIONS OF THE BENT TICK AMBLYOMMA-HEBRAEUM (ACARI, IXODIDAE) ONDIFFERENT BREEDS OF CATTLE IN ZIMBABWE, Experimental & applied acarology, 20(10), 1996, pp. 599-605
Authors:
NORVAL RAI
SONENSHINE DE
ALLAN SA
BURRIDGE MJ
Citation: Rai. Norval et al., EFFICACY OF PHEROMONE ACARICIDE-IMPREGNATED TAIL-TAG DECOYS FOR CONTROLLING THE BONT TICK, AMBLYOMMA-HEBRAEUM (ACARI, IXODIDAE), ON CATTLE IN ZIMBABWE, Experimental & applied acarology, 20(1), 1996, pp. 31-46
Authors:
CALDER JAM
REDDY GR
CHIEVES L
COURTNEY CH
LITTELL R
LIVENGOOD JR
NORVAL RAI
SMITH C
DAME JB
Citation: Jam. Calder et al., MONITORING BABESIA-BOVIS INFECTIONS IN CATTLE BY USING PCR-BASED TESTS, Journal of clinical microbiology, 34(11), 1996, pp. 2748-2755
Authors:
YOUNG AS
DOLAN TT
MORZARIA SP
MWAKIMA FN
NORVAL RAI
SCOTT J
SHERRIFF A
GETTINBY G
Citation: As. Young et al., FACTORS INFLUENCING INFECTIONS IN RHIPICEPHALUS-APPENDICULATUS TICKS FED ON CATTLE INFECTED WITH THEILERIA-PARVA, Parasitology, 113, 1996, pp. 255-266
Authors:
MAHAN SM
PETER TF
SEMU SM
SIMBI BH
NORVAL RAI
BARBET AF
Citation: Sm. Mahan et al., LABORATORY-REARED AMBLYOMMA-HEBRAEUM AND AMBLYOMMA-VARIEGATUM TICKS DIFFER IN THEIR SUSCEPTIBILITY TO INFECTION WITH COWDRIA-RUMINANTIUM, Epidemiology and infection, 115(2), 1995, pp. 345-353
Authors:
NORVAL RAI
DONACHIE PL
MELTZER MI
DEEM SL
MAHAN SM
Citation: Rai. Norval et al., THE RELATIONSHIP BETWEEN TICK (AMBLYOMMA-HEBRAEUM) INFESTATION AND IMMUNITY TO HEARTWATER (COWDRIA-RUMINANTIUM INFECTION) IN CALVES IN ZIMBABWE, Veterinary parasitology, 58(4), 1995, pp. 335-352
Authors:
PETER TF
DEEM SL
BARBET AF
NORVAL RAI
SIMBI BH
KELLY PJ
MAHAN SM
Citation: Tf. Peter et al., DEVELOPMENT AND EVALUATION OF PCR ASSAY FOR DETECTION OF LOW-LEVELS OF COWDRIA-RUMINANTIUM INFECTION IN AMBLYOMMA TICKS NOT DETECTED BY DNA-PROBE, Journal of clinical microbiology, 33(1), 1995, pp. 166-172
Authors:
MELTZER MI
NORVAL RAI
DONACHIE PL
Citation: Mi. Meltzer et al., EFFECTS OF TICK INFESTATION AND TICK-BORNE DISEASE INFECTIONS (HEARTWATER, ANAPLASMOSIS AND BABESIOSIS) ON THE LACTATION AND WEIGHT-GAIN OFMASHONA CATTLE IN SOUTH-EASTERN ZIMBABWE, Tropical Animal Health and Production, 27(3), 1995, pp. 129-144
Authors:
MORZARIA SP
DOLAN TT
NORVAL RAI
BISHOP RP
SPOONER PR
Citation: Sp. Morzaria et al., GENERATION AND CHARACTERIZATION OF CLONED THEILERIA-PARVA PARASITES, Parasitology, 111, 1995, pp. 39-49
Authors:
NORVAL RAI
PERRY BD
MELTZER MI
KRUSKA RL
BOOTH TH
Citation: Rai. Norval et al., FACTORS AFFECTING THE DISTRIBUTIONS OF THE TICKS AMBLYOMMA-HEBRAEUM AND A-VARIEGATUM IN ZIMBABWE - IMPLICATIONS OF REDUCED ACARICIDE USAGE, Experimental & applied acarology, 18(7), 1994, pp. 383-407
Authors:
PRICE TL
SONENSHINE DE
NORVAL RAI
YUNKER CE
BURRIDGE MJ
Citation: Tl. Price et al., PHEROMONAL COMPOSITION OF 2 SPECIES OF AFRICAN AMBLYOMMA TICKS - SIMILARITIES, DIFFERENCES AND POSSIBLE SPECIES-SPECIFIC COMPONENTS, Experimental & applied acarology, 18(1), 1994, pp. 37-50
Authors:
MELTZER MI
NORVAL RAI
Citation: Mi. Meltzer et Rai. Norval, MATHEMATICAL-MODELS OF TICK-BORNE DISEASE TRANSMISSION, Parasitology today, 9(8), 1993, pp. 277-278
Authors:
MELTZER MI
NORVAL RAI
Citation: Mi. Meltzer et Rai. Norval, EVALUATING THE ECONOMIC DAMAGE THRESHOLD FOR BONT TICK (AMBLYOMMA-HEBRAEUM) CONTROL IN ZIMBABWE, Experimental & applied acarology, 17(3), 1993, pp. 171-185
Authors:
DEVRIES N
MAHAN SM
USHEWOKUNZEOBATOLU U
NORVAL RAI
JONGEJAN F
Citation: N. Devries et al., CORRELATION BETWEEN ANTIBODIES TO COWDRIA-RUMINANTIUM (RICKETTSIALES)IN CATTLE AND THE DISTRIBUTION OF AMBLYOMMA VECTOR TICKS IN ZIMBABWE, Experimental & applied acarology, 17(11), 1993, pp. 799-810
Authors:
KOCH HT
KAMBEVA L
NORVAL RAI
OCAMA JGR
MUNATSWA FC
Citation: Ht. Koch et al., TRANSMISSION OF THEILERIA-PARVA-BOVIS BY NYMPHS OF RHIPICEPHALUS-APPENDICULATUS, Preventive veterinary medicine, 17(1-2), 1993, pp. 89-93
Authors:
MELTZER MI
NORVAL RAI
Citation: Mi. Meltzer et Rai. Norval, ASSESSING THE RETURNS TO INTENSIVE USE OF PESTICIDES TO CONTROL TICK-BORNE DISEASE HEARTWATER, American journal of agricultural economics, 75(5), 1993, pp. 1321-1321
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1-24
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