Source of variation of hematology and blood biochemical profiles of Holstein Friesian bulls in performance test
| Autor: | Martino Cassandro, Anna Lisa Stefani, Flaviana Gottardo, Lucillo Cestaro, Barbara Contiero, Giancarlo Bertoli |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
040301 veterinary sciences medicine.medical_treatment Biology 0403 veterinary science Fertility index Animal science Internal medicine White blood cell medicine Hematology General Veterinary Artificial insemination 0402 animal and dairy science 04 agricultural and veterinary sciences Artificial insemination stud Biochemical blood profiles Holstein Friesian bulls Selection indexes Animal Science and Zoology Veterinary (all) 040201 dairy & animal science medicine.anatomical_structure Homogeneous Genetic merit |
| Popis: | Increasing knowledge on blood profiles for bulls residing in an artificial insemination station is needed both for their high economic value and because they represent a homogeneous bovine sub-population with specific characteristics different from other categories of cattle. Therefore, the aims of this study were to calculate descriptive statistics for blood variables routinely collected from Holstein Friesian bulls of genetic merit; to investigate the sources of variation (age, season, and genetic merit) and to calculate the relationship among blood analytes and selection indexes calculated on their daughters. Age affected some erythrocytes series (increasing trend) and white blood cell count (decreasing trend). The seasonal factor influenced significantly mainly urea. Total bilirubin was significantly affected by genetic merit, inversely correlated with the official productive selection index. Hematologic variables were mainly correlated with production index, whereas biochemical variables, such as glucose, urea and proteins, were related to fertility index. |
| Databáze: | OpenAIRE |
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