Applicability of teeth examination as a tool for age estimation in a semi-arid cattle production environment in Namibia
| dc.contributor.author | Mushonga, Borden | |
| dc.contributor.author | Shinexuugi, Immanuel | |
| dc.contributor.author | Mbiri, Pricilla | |
| dc.contributor.author | Samkange, Alaster | |
| dc.contributor.author | Madzingira, Oscar | |
| dc.contributor.author | Kandiwa, Erick | |
| dc.date.accessioned | 2020-05-05T08:11:24Z | |
| dc.date.available | 2020-05-05T08:11:24Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | Regression analysis was used to evaluate teeth examination as a tool for estimating age in beef and dairy cattle at Neudamm farm, Namibia, in 2018. There was a significant difference in age (months) between the overall mean actual age (M=60, SD=4.57) and the mean estimated age (M=57, SD=4.52 months) in beef cattle; t(74) = 3.61, p<0.001. There was no significant difference between the overall mean estimated age and the mean actual age (M=42.5, SD=5.18) and (M=41.3, SD=5.21 months) in dairy cattle; t(30) = 1.45, p=0.16. There was a very strong positive relationship between the overall teeth examination-estimated age and actual age in beef cattle [r (74) = 0.98, p<0.001]. There was a very strong positive relationship between the overall teeth examination-estimated age and actual age in dairy cattle [r (30) = 0.99, p<0.001]. A very strong positive relationship was also evident between the teeth examination estimated age and actual age in beef cattle aged 45 months and below [r (37) = 0.93, p<0.001]. There was a very strong positive relationship between the teeth examination-estimated and actual age in dairy cattle aged 45 months and below [r (20) = 0.97, p<0.001]. There was a very strong positive relationship between the teeth examination-estimated age and actual age in beef cattle aged over 45 months [r (35) = 0.93, p<0.001]. There was a very strong positive relationship between the teeth examination-estimated age and actual age in dairy cattle aged over 45 months [r (8) = 0.97, p<0.001]. It was therefore concluded that under the given conditions of the study and the range of ages and the breeds under study, age estimation through teeth examination is reliably applicable | en_US |
| dc.identifier.citation | Mushonga, B., et al. (2019). Applicability of teeth examination as a tool for age estimation in a semi-arid cattle production environment in Namibia. Tropical Animal Health and Production, 1-8. | en_US |
| dc.identifier.uri | http://hdl.handle.net/11070/2735 | |
| dc.language.iso | en | en_US |
| dc.subject | Teething | en_US |
| dc.subject | Estimation | en_US |
| dc.subject | Beef | en_US |
| dc.title | Applicability of teeth examination as a tool for age estimation in a semi-arid cattle production environment in Namibia | en_US |
| dc.type | Article | en_US |