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The Effect of Pasture Crops with and without Supplemental Corn Feeding and Dry-Lot Management for Beef Production and Nematode Control

Mississippi Agricultural Experiment Station, State College

Abstract

A fescue-ladino pasture yielded a lower beef production than any of the pasture crops and dry-lot rations tested; and as interpreted from the reduction of the average nematode egg counts during the term of grazing, a decrease of the number of hosts shedding nematode ova, and the nematode larval count of vegetation, the nematode parasite potential was the highest in steers grazed on this type of pasture.

A partial corn supplement fed in addition to fescue-ladino grazing significantly increased beef production, but the parasite potential remained unchanged. The same quantity of corn supplementing ryegrass grazing did not significantly augment beef production from ryegrass, but it did lower the parasite potential.

Wheat pasture was as effective for beef production as a full-feed of corn and cottonseed meal (7:1) supplemented with 3.0 lb. of legume hay in dry-lot, or ryegrass pasture supplemented with corn.

Wheat pasture and the dry-lot diets were equally superior to any of the diets tested for the reduction of the nematode parasite potential of the hosts.

The parasite potential was determined from species of Ostertagia, Oesphagostomum, Haemonchus, Trichostrongylus, Cooperia, Chabertia, Strongyloides, Bunostomum and Nematodirus.

¹ The authors of this report are indebted to Dr. Walter J. Drapala, Statistician, Mississippi Experiment Station, State College, Mississippi, for analysis of data presented in this research.