论文信息 - The effect of a sub-clinical worm-burden on the productivity of sheep. - 字舞流文

The effect of a sub-clinical worm-burden on the productivity of sheep.

[1] C. Spedding. The Control of Worm-infestation in Sheep by Grazing Management , 1956, Journal of Helminthology.

[2] C. Spedding. Production of Worm-free Lambs at Pasture , 1954, Nature.

[3] I. Parnell,et al. Some Observations on the “Spring Rise” in Worm-Egg Counts of Halfbred Sheep in South-East Scotland , 1954 .

[4] C. Spedding. Effect of a sub-clinical worm-burden on the digestive efficiency of sheep. , 1954, Journal of comparative pathology.

[5] W. Thorp,et al. Phenothiazine as an Anthelmintic for Breeding Ewes , 1945 .