Do haematological profiles of cows in drought prone areas differ with conformation?
| Autor: | Michael Chimonyo, Takunda Dzavo, Titus J. Zindove, Musavenga T. Tivapasi, Marshall Dhliwayo |
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| Přispěvatelé: | Bindura University of Science Education Research and Postgraduate Centre, Zimbabwe (RBGA/07/2016) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
body conformation
040301 veterinary sciences Biology Frame size haemoconcentration 0403 veterinary science lcsh:Agriculture Animal science season coat colour Agriculture Livestock Animal production White blood cell medicine Mean platelet volume Mean corpuscular volume medicine.diagnostic_test 0402 animal and dairy science lcsh:S food and beverages Red blood cell distribution width 04 agricultural and veterinary sciences Circumference 040201 dairy & animal science medicine.anatomical_structure Principal component analysis Agronomy and Crop Science |
| Zdroj: | Spanish Journal of Agricultural Research, Vol 18, Iss 2, Pp e0604-e0604 (2020) Spanish Journal of Agricultural Research; Vol. 18 No. 2 (2020); e0604 Spanish Journal of Agricultural Research; Vol. 18 Núm. 2 (2020); e0604 SJAR. Spanish Journal of Agricultural Research instname Spanish Journal of Agricultural Research; Vol 18, No 2 (2020); e0604 |
| ISSN: | 2171-9292 |
| Popis: | Aim of study: Severe and frequent droughts have resulted in loss of thousands of rangeland cattle worldwide. The objectives of the current study were to assess the reduction in dimensionality of seven conformation traits and to determine the relationships between extracted constructs and haematological parameters associated with drought resilience in beef cows.Area of study: Muzarabani district, Zimbabwe.Material and methods: Fifty multiparous Mashona cows kept on natural rangelands were used. The collinearity of seven conformation traits of the cows was reduced using principal component analysis. The relationships between the principal components and hematological profiles of the cows were subsequently determined using regression analysis.Main results: First extracted principal component described body capacity (body depth, flank circumference, chest girth). The second component described the frame size (stature and body length) of the cows and the third component was comprised of sheath height and dewlap size. Cows characterised by deep bodies, large flanks and chest girths had low percent haematocrit (HCT), mean capsular haemoglobin concentration (MCHC) and red cell distribution (RDW) (p |
| Databáze: | OpenAIRE |
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