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All Journal Hemera Zoa
I. K. Sutama
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Growth and sexual development of javanese thin-tailed ewe lambs as affected by moderate internal parasite burden I. K. Sutama
Hemera Zoa Vol. 74 No. 1 (1991): Jurnal Hemera Zoa
Publisher : Hemera Zoa

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Abstract

The effect of a moderate burden of internal parasites on growth and sexual development of Javanese thin-tailed (JIT) ewe lambs was studied from weaning at 13 weeks of age to puberty (first oestrus group (T) was infected with third stage mixed larvae comprised of 840 Haemonchus spp., 150 Cooperia spp., 255 Oesophagostomum spp., 240 Tri chostrongylus spp., and 15 Strongyloides spp. The lambs were fed elephant grass and concentrate (Beef0kwik, Cargill) ad lib. throught the experiment period. The result showed that a moderate parasite burden did not significantly influence growth and sexual development of JTT ewe lambs reared under research station conditions. However, group T ewe lambs consumed 8% more feed than group C. The possibility that JTT sheep may have a high resistance to internal parasite warrants further investigation.
The effect of anthelmintic treatment on growth and sexual development of javanese thin-tailed ram lambs reader under village conditions I. K. Sutama; Beriajaya .
Hemera Zoa Vol. 74 No. 1 (1991): Jurnal Hemera Zoa
Publisher : Hemera Zoa

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Abstract

A n experiment was conducted to determine the effect of internal parasite control, using a broad spectrum anthelmintic (Tetramisole) or a long-acting narrow spectrum anthelmintic (Disophenol) on growth and sexual development of Javanese thin - tailed ram lambs reared underville conditions. Treatment with a broad spectrum anthelmintic for controlling Hemonchus spp., alone did not result in a similar improvement in weight gain (39.8 g/day). The untreated group grew at a rate of 42,2 g/day. Neither anthelmintic treatment nor birth type (single or twins) significantly affect sexual development of lambs under village conditions, though single born ram lambs grew at significantly (P.01) faster rate than those or twins (57.5 vs 31.8 g/day).