Induced parturition with corticosteroids: a comparison of four treatments
| Autor: | J.E. Crawford, R.A.S. Welch, D.M. Duganzich |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
medicine.medical_specialty
General Veterinary business.industry Ice calving General Medicine Betamethasone Dexamethasone Endocrinology Animal science Pregnancy Internal medicine medicine Animals Cattle Female Calf mortality Labor Induced business Intramuscular injection Dexamethasone trimethyl acetate medicine.drug |
| Zdroj: | New Zealand Veterinary Journal. 25:111-114 |
| ISSN: | 1176-0710 0048-0169 |
| DOI: | 10.1080/00480169.1977.34376 |
| Popis: | Summary A field trial was conducted to compare four injection regimes of corticosteroids to induce parturition. The treatments were: I 20–25 mg intramuscular injection of dexamethasone trimethyl acetate; II 20 mg dexamethasone trimethyl acetate initially, repeated 6 days later; III 20–25 mg dexamethasone trimethyl acetate followed 8 days later by a 20 mg injection of betamethasone: IV betamethasone daily starting at 1 mg/day and doubling every second day until day 9 beyond which a 16 mg/day level was maintained until calving. Data were collected from 879 cows on 46 farms. Calf mortality, considering only cows treated at least ten days before calving, was 19%, II 16%, III 5% and IV 9% for the four treatments and increased with increasing prematurity. Response time (initial injection to calving) was 11.5, 10.3, 10.0 and 9.2 days for the four treatments and increased by 0.7 days for each week increase in prematurity at first injection. Mean prematurity at birth was 15 days. Sixteen percent of cows had retain... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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