Eye-balling and heart girth models for live weight estimation of highly admixed Sudani shorthorn zebu cattle for precise production and veterinary services
Other Title(s)
التخمين اعتمادا على الشكل الخارجي و معادلات محيط الصدر للتقدير بالوزن الحي لأبقار الزيبو السودانية ذات المادة الوراثية عالية الخلط للأغراض البيطرية و الإنتاجية
Joint Authors
al-Khatib, Ashraf
al-Misri, Ubaydah
Burton, Emily
Wamatu, Jane
Source
Jordan Journal of Agricultural Sciences
Issue
Vol. 16, Issue 3 (30 Sep. 2020), pp.63-72, 10 p.
Publisher
University of Jordan Deanship of Academic Research (DAR)
Publication Date
2020-09-30
Country of Publication
Jordan
No. of Pages
10
Main Subjects
Abstract EN
Cattle production is a key pillar of food security in Africa.
The majority of African cattle is highly admixed with unknown breed composition.
Accurate estimation of live weight (LW) of these cattle would improve the precision of feeding, veterinary services and pricing resulting in an improvement in profitability.
This study assessed estimating LW of admixed Sudani zebu cattle using eyeballing and heart girth (HG) models.
Live weight and HG of 432 Baggara cattle, an admixed Sudani breed, was measured.
Three models (a simple linear, a simple linear with box-cox transformed LW and a quadratic) were generated using 382 heads and validated using 50 heads.
A published model (LW (kg) = 3.54*HG (cm) - 322.63) was validated using the data of this study.
The error of LW estimation by a breeder and five cattlemen were recorded.
All constructed models had high R2 (0.725 - 0.728).
However, the 95th percentile of the prediction error of the constructed and published models was higher than 20%.
The 95th percentile of LW estimation error of all participants was high (>20%).
Accordingly, HG models and eyeballing are not suitable methods to determine LW of highly admixed zebu cattle for production, veterinary and marketing purposes as they are prone to a high rate of error.
American Psychological Association (APA)
al-Khatib, Ashraf& al-Misri, Ubaydah& Burton, Emily& Wamatu, Jane. 2020. Eye-balling and heart girth models for live weight estimation of highly admixed Sudani shorthorn zebu cattle for precise production and veterinary services. Jordan Journal of Agricultural Sciences،Vol. 16, no. 3, pp.63-72.
https://search.emarefa.net/detail/BIM-1346091
Modern Language Association (MLA)
al-Khatib, Ashraf…[et al.]. Eye-balling and heart girth models for live weight estimation of highly admixed Sudani shorthorn zebu cattle for precise production and veterinary services. Jordan Journal of Agricultural Sciences Vol. 16, no. 3 (2020), pp.63-72.
https://search.emarefa.net/detail/BIM-1346091
American Medical Association (AMA)
al-Khatib, Ashraf& al-Misri, Ubaydah& Burton, Emily& Wamatu, Jane. Eye-balling and heart girth models for live weight estimation of highly admixed Sudani shorthorn zebu cattle for precise production and veterinary services. Jordan Journal of Agricultural Sciences. 2020. Vol. 16, no. 3, pp.63-72.
https://search.emarefa.net/detail/BIM-1346091
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-1346091