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Titolo:
CONTROL OF GASTROINTESTINAL PARASITISM IN CALVES WITH ALBENDAZOLE DELIVERED VIA AN INTRARUMINAL CONTROLLED-RELEASE DEVICE
Autore:
BELL SL; PERRY KW; ROWLINSON P;
Indirizzi:
UNIV NEWCASTLE UPON TYNE,FAC AGR & BIOL SCI,DEPT AGR NEWCASTLE TYNE NE1 7RU TYNE & WEAR ENGLAND
Titolo Testata:
Veterinary parasitology
fascicolo: 3-4, volume: 62, anno: 1996,
pagine: 275 - 290
SICI:
0304-4017(1996)62:3-4<275:COGPIC>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
IMMUNITY; CATTLE; INFECTIONS; HELMINTHS; NEMATODES;
Keywords:
CATTLE NEMATODA; OSTERTAGIA SPP; COOPERIA SPP; IMMUNITY NEMATODA; CONTROL METHOD NEMATODA; ALBENDAZOLE; GROWTH PERFORMANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
S.L. Bell et al., "CONTROL OF GASTROINTESTINAL PARASITISM IN CALVES WITH ALBENDAZOLE DELIVERED VIA AN INTRARUMINAL CONTROLLED-RELEASE DEVICE", Veterinary parasitology, 62(3-4), 1996, pp. 275-290

Abstract

The efficacy of albendazole in an intraruminal controlled-release device against gastrointestinal nematodes in calves was evaluated under field conditions, Calf productivity was monitored during the first and second grazing seasons. Two groups of parasite-naive Holstein Friesianheifer calves were grazed from May to October on adjacent, similarly contaminated paddocks. One group was given a Captec bolus at turnout, the other group was left untreated, Pasture larval counts peaked on the paddock grazed by the untreated calves at 23000 1 kg(-1) dry matter in October. This precipitated clinical parasitic gastro-enteritis in the untreated calves with a mean peak faecal egg count of 335 epg, highblood pepsinogen and gastrin concentrations and a mean worm. burden of 79 614 at 100 days post-tumour. Pasture larval counts on the paddockgrazed by the treated calves remained less than 3000 1 kg(-1) DM and the mean faecal egg count was zero until mid-August, peaking at 146 eggs per gram of faeces (epg) in October. The treated calves had body liveweight advantage of 19 kg at the end of September, During the secondgrazing season the first season untreated calves were refractory to infection. The first season treated calves showed signs of parasitic gastro-enteritis, although not to the extent exhibited by a group of first season parasite-naive tracer calves which were grazed on the same paddock.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 07:22:03