Abstract

Heifers developed on high-endophyte, tall fescue gained half as much weight (56 vs 117 lb; P<.01) and had a lower 35-day pregnancy rate (15 vs 58%; P<.01) compared to heifers fed low endophyte, tall fescue. Based on progesterone serum concentrations and visual determination of estrus, the proportion of heifers that had attained puberty by the start of the breeding season tended (P=.11) to be greater when fed oxytetracycline (55 vs 68%).

Highlights

  • Tall fescue is excellent in terms of yield and persistence; growth and reproductive performance by animals grazing tall fescue have generally been inferior to those of animals grazing other cool-season grasses

  • Heifers developed on high-endophyte, tall fescue gained half as much weight (56 vs 117 lb; P

  • Summary Heifers developed on high-endophyte, tall fescue gained half as much weight (56 vs 117 lb; P

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Summary

Part of the Other Animal Sciences Commons

Recommended Citation Peters, C.W.; Brazle, F.K.; and Corah, L.R. (1993) "Growth and reproductive characteristics in heifers fed endophyte-infected tall fescue and oxytetracycline," Kansas Agricultural Experiment Station Research Reports: Vol 0: Iss. 1.

Introduction
HE Seed
Findings
No of heifers
Full Text
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