The effect of phenothiazine and withdrawal time on gravid mares grazing endophyte-infected tall fescue
| Autor: | S.W. Kennedy, L.W. Hudson, T. Gimenez, L.M. Redmond, D. L. Cross, W.F. Earle |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
endocrine system
geography medicine.medical_specialty geography.geographical_feature_category biology Equine animal diseases Withdrawal time biology.organism_classification Serum samples Endophyte Pasture Prolactin Breed chemistry.chemical_compound Animal science Endocrinology chemistry Phenothiazine Internal medicine Grazing medicine |
| Zdroj: | Journal of Equine Veterinary Science. 11:17-22 |
| ISSN: | 0737-0806 |
| DOI: | 10.1016/s0737-0806(06)81241-4 |
| Popis: | Summary Sixteen gravid mares grazing endophyte Acremonium coenophialum infected fescue were assigned by expected foaling date and breed to a 2x2 factorial arrangement of treatments. The treatments were phenothiazine (P), no phenothiazine (NP), withdrawal from infected fescue pasture on expected foaling date (0), and withdrawal from infected fescue pasture ten days after expected foaling date (+10). Mares on the P treatment received 2 gm/headl/day -1 of phenothiazine in 454 gm of a corn and molasses carrier and mares on NP treatment received 454 gm of the carrier daily. Treatment started 40 days prior to each mare's expected foaling date and continued until parturition. Mares were weighed, given a body condition score and a 4h blood window was initially taken. Weights and body condition scores were recorded every 28 days. Six more blood windows were taken on each mare: three based on the start of P or NP, two on withdrawal time, and one two days after foaling. Serum samples were assayed for prolactin, progesterone and estradiol-1713. Neither phenothiazine nor withdrawal time had an effect (P |
| Databáze: | OpenAIRE |
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