Assessment of Major Causes of Calf Mortality in Urban and Periurban Dairy Production System of Ethiopia.

Autor: Fentie T; University of Gondar, College of Veterinary Medicine and Animal Sciences, P. O. Box 196, Gondar, Ethiopia., Guta S; National Animal Health Diagnostic and Investigation Centre, P. O. Box 04, Sebeta, Ethiopia., Mekonen G; Bahir Dar Regional Veterinary Laboratory, P. O. Box 79, Bahir Dar, Ethiopia., Temesgen W; University of Gondar, College of Veterinary Medicine and Animal Sciences, P. O. Box 196, Gondar, Ethiopia., Melaku A; University of Gondar, College of Veterinary Medicine and Animal Sciences, P. O. Box 196, Gondar, Ethiopia., Asefa G; University of Gondar, College of Veterinary Medicine and Animal Sciences, P. O. Box 196, Gondar, Ethiopia., Tesfaye S; University of Gondar, College of Veterinary Medicine and Animal Sciences, P. O. Box 196, Gondar, Ethiopia., Niguse A; Jigjiga University College of Veterinary Medicine, P. O. Box, Jigjiga, 1020, Ethiopia., Abera B; Jigjiga University College of Veterinary Medicine, P. O. Box, Jigjiga, 1020, Ethiopia., Kflewahd FZ; Samara University College of Veterinary Medicine, P. O. Box 132, Semera, Ethiopia., Hailu B; Samara University College of Veterinary Medicine, P. O. Box 132, Semera, Ethiopia., Begna F; Jimma University College of Agriculture and Veterinary Medicine, P. O. Box 307, Jimma, Ethiopia., Worku Z; Jimma University College of Agriculture and Veterinary Medicine, P. O. Box 307, Jimma, Ethiopia.
Jazyk: angličtina
Zdroj: Veterinary medicine international [Vet Med Int] 2020 Feb 24; Vol. 2020, pp. 3075429. Date of Electronic Publication: 2020 Feb 24 (Print Publication: 2020).
DOI: 10.1155/2020/3075429
Abstrakt: A cross-sectional calf mortality study was conducted in urban and periurban dairy farms in Addis Ababa, special zones of Oromia and Amhara regions in July and August 2015. The objectives of the study were to estimate the annual mortality and to assess the major causes of calf mortality in the dairy farms. One-year retrospective data on calf mortality were collected from 330 farms by face-to-face interview using the pretested and structured questionnaire format and direct observation of farm practices. A logistic regression analysis was performed in order to identify the predictor variables associated with early calf mortality. Data were analysed using Statistical Package, Stata SE for Windows, version 12.0. The annual mean calf mortality from birth-to-weaning was reported as 18.5% (95% CI: 12.6, 24.3%). The prenatal loss due to fetal death and stillbirth was 10.1% (95% CI: 6.7, 13.6%). The overall annual loss due to fetal death and calf preweaning mortality was 26.7% (95% CI: 21.2, 32.2%). Age-specific mortality declined with increased age, and the highest mortality was recorded during the first month of life extending up to the third month of age. Disease was the most important causes of calf mortality (73.2%). Among the diseases, diarrhea (63%) and respiratory disorders (17%) were the important causes of calf mortality. Malpractices in calf management were identified, including restricted colostrum and milk feeding, poor care and supplemental feeding, and poor health management. Interventions in dairy cattle health and farm husbandry are recommended to control calf mortality.
Competing Interests: The authors declare no conflicts of interest.
(Copyright © 2020 Tsegaw Fentie et al.)
Databáze: MEDLINE
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