Effects of calving season on the voluntary waiting period and reproductive performance of Holstein cows in the tropical savannah
| Autor: | Benner Geraldo Alves, K.A. Alves, Thiago Vilar Silva, Maria Lúcia Gambarini, Regiani Nascimento Gagno Pôrto |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Wet season medicine.medical_specialty Respiratory rate media_common.quotation_subject Rain Ice calving Biology Waiting period Antioxidants 03 medical and health sciences Animal science Food Animals Internal medicine Respiration medicine Animals media_common Heat index Reproduction 0402 animal and dairy science 04 agricultural and veterinary sciences Lipid Metabolism 040201 dairy & animal science Grassland 030104 developmental biology Endocrinology Turnover Animal Science and Zoology Cattle Seasons Brazil |
| Zdroj: | Tropical animal health and production. 49(6) |
| ISSN: | 1573-7438 |
| Popis: | The effects of calving season [rainy (RS) and dry (DS)] on the voluntary waiting period (VWP) of 58 Holstein cows raised in the tropical savannah were investigated using data of temperature humidity index (THI), total antioxidant status (TAS), respiratory rate (RR), rectal temperature (RT), glucose, total cholesterol (TC), triglycerides (TG), velocity of uterine regression, and subsequent reproductive performance. Blood samples and clinical data were taken once every week, from calving until the sixth postpartum week. Reproductive data were collected until 180 days postpartum. THI differed between seasons (P |
| Databáze: | OpenAIRE |
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