+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effect of management systems on the growth of lambs and development of internal parasitism. I. Dry lot vs. two pasture rotation systems



Effect of management systems on the growth of lambs and development of internal parasitism. I. Dry lot vs. two pasture rotation systems



Journal of Parasitology 49: 209-217



Effects of three management systems, including medication, on the development of internal parasitism in lambs and on their growth were studied. The systems included dry lot confinement (Band 1), transfer of animals to a clean pasture at biweekly intervals (Band 2), and grazing of animals on contaminated pastures (Band 3). Average levels of parasitism acquired by the lambs in Bands 1, 2, and 3 were insignificant, moderate, and high, respectively. Lambs from Band 3 acquired significant infections of Haemonchus contortus by June, which continued to rise until midsummer, and heavy infections of Strongyloides papillosus in August and September. Lambs from Band 2 acquired peak moderate infections of H. contortus by midsummer and moderate to heavy, infections of S. papillosus in August and September. Clinical haemonchosis in Bands 2 and 3 was not satisfactorily controlled by supplementary therapeutic dosing with N.F. grade phenothiazine. Limited evidence suggested that this may have been due, in part, to a tolerance for the drug. Circumstances did not permit a fair evaluation of copper sulfate drenches in this regard. Average daily gains of lambs in Band 1, until weaning, were significantly greater than those of lambs in Bands 2 and 3. Effect of management and parasitism on weight gains of the lambs became more pronounced in the three Bands after weaning and reached a maximum in early August. Band 3 lost weight on the average during this period. Significant differences in grease fleece weights of the experimental animals also were obtained when they were yearlings; the average fleece weights of these three bands were inversely proportional to the degree of parasitism observed during the previous grazing season.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 014023807

Download citation: RISBibTeXText

PMID: 13930733

DOI: 10.2307/3275986


Related references

Effect of management systems on the growth of lambs and development of internal parasitism. III. Field trials with lambs on soilage and pasture involving medication with N.F. and purified grades of phenothiazine. J. Parasit. 56: 991-999, 1970

Effect of management systems on the growth of lambs and development of internal parasitism. 3. Field trials with lambs on soilage and pasture involving medication with N.F. and purified grades of phenothiazine. Journal of Parasitology 56(5): 991-999, 1970

Effect of management systems on the growth of lambs and development of internal parasitism. 4. Field trials with lambs on drylot and pasture involving medication with thiabendazole and purified micronized phenothiazine. Proc. Helminthol. Soc. Washington. 37: 230-236, 1970

Effect of management systems on the growth of lambs and development of internal parasitism part 4 field trials with lambs on drylot and pasture involving medication with thiabendazole and purified micronized phenotiazine. Proceedings of the Helminthological Society of Washington 37(2): 230-236, 1970

Effect of management systems on the growth of lambs and development of internal parasitism part 3 field trials with lambs on soilage and pasture involving medication with national formulary and purified grades of phenothiazine. Journal Of Parasitology: 991-999, 1970

Effect of management systems on the groth of lambs and development of internal parasitism. III. Field trials with lambs on soilage and pasture involving medication with National Formulary and purified grades of phenothiazine. Journal of parasitology: 56 (5) 991-999, 1970

Effect of three management systems on the growth of lambs and development of internal parasitism. Jour Animal Sci 20(1): 199, 1961

Effect of management systems on the growth of lambs and development of internal parasitism: Field trials involving medication with national formulary grade and purified phenothiazine. J PARASITOL 50(3 Sect 2): 58, 1964

Effect of management systems on the growth of lambs and development of internal parasitism. II. Field trials involving medication with national formulary and purified grades of phenothiazine. Journal of Parasitology 54(1): 89-97, 1968

Effect of management systems on the growth of lambs and development of internal parasitism: Field trials involving medication with thiabendazole and puri-fied micronized phenothiazine. J PARASITOL 50(3 Sect 2): 58, 1964

Effect of management systems on the growth of lambs and development of internal parasitism. 5. Field trials comparing early weaning versus late weaning and involving medication with thiabendazole and purified micronized phenothiazine. Proceedings of the Helminthological Society of Washington. 38: 1, 27-34, 1971

Effect of management systems on the growth of lambs and development of internal parasitism part 5 field trials comparing early weaning vs late weaning and involving medication with thiabendazole and purified micronized phenothiazine. Proceedings of the Helminthological Society of Washington 38(1): 27-34, 1971

The effects of different grazing pasture systems and spring turn-out date on growth and development of lambs. Icelandic Agricultural Sciences (19): 71-80, 2006

Effectiveness of three management systems on parasitism in lambs. III. Resistance of Haemonchus contottus to phenothiazine. J. Parasit, 41 p, 1960

Effectiveness of three management systems on parasitism in lambs. I. Clinical effects of parasitisms relative to exposure and medication. Journal of Parasitology. 46: 5, Sect. 2, 40, 1960