Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal
We investigated the prediction of live weight (LW) of dairy cattle in low- to medium-input systems in Senegal, based on measurements of heart girth (HG) and height at the withers (HW). A total of 459 female dairy cattle, mainly comprising indigenous Zebu and their crosses with Guzerat or Bos Taurus,...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Informa UK Limited
2018
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/129416 |
| _version_ | 1855533708221612032 |
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| author | Tebug, Stanly Fon Missohou, Ayao Sourokou Sabi, Souahibou Juga, Jarmo Poole, Elizabeth J. Tapio, Miika Marshall, Karen |
| author_browse | Juga, Jarmo Marshall, Karen Missohou, Ayao Poole, Elizabeth J. Sourokou Sabi, Souahibou Tapio, Miika Tebug, Stanly Fon |
| author_facet | Tebug, Stanly Fon Missohou, Ayao Sourokou Sabi, Souahibou Juga, Jarmo Poole, Elizabeth J. Tapio, Miika Marshall, Karen |
| author_sort | Tebug, Stanly Fon |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | We investigated the prediction of live weight (LW) of dairy cattle in low- to medium-input systems in Senegal, based on measurements of heart girth (HG) and height at the withers (HW). A total of 459 female dairy cattle, mainly comprising indigenous Zebu and their crosses with Guzerat or Bos Taurus, were weighed (kg), and their HG (cm) and HW (cm) determined. Farmers were asked to provide their own weight estimates for each animal. The single explanatory variable that explained the most variation in LW was HG. The best model to predict LW from HG for the overall data was with an adjusted R2 of 0.85 and a root mean square error of 34.25 kg corresponding to 11.10% of the mean LW. This model predicted the LW of 91–100% of cows and 64–100% of heifers within 20% of their true-live weight, in the weight range of about 100–500 kg. In comparison, farmers could only estimate the LW of about a quarter of their animals within 20% of their true LW. This weight prediction equation, when translated into a weigh band, could provide a simple and reliable method for cattle keepers to estimate the weight of studied cattle breed types. |
| format | Journal Article |
| id | CGSpace129416 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1294162024-10-03T07:40:58Z Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal Tebug, Stanly Fon Missohou, Ayao Sourokou Sabi, Souahibou Juga, Jarmo Poole, Elizabeth J. Tapio, Miika Marshall, Karen cattle dairy cattle weight live weight systems body measurements senegal We investigated the prediction of live weight (LW) of dairy cattle in low- to medium-input systems in Senegal, based on measurements of heart girth (HG) and height at the withers (HW). A total of 459 female dairy cattle, mainly comprising indigenous Zebu and their crosses with Guzerat or Bos Taurus, were weighed (kg), and their HG (cm) and HW (cm) determined. Farmers were asked to provide their own weight estimates for each animal. The single explanatory variable that explained the most variation in LW was HG. The best model to predict LW from HG for the overall data was with an adjusted R2 of 0.85 and a root mean square error of 34.25 kg corresponding to 11.10% of the mean LW. This model predicted the LW of 91–100% of cows and 64–100% of heifers within 20% of their true-live weight, in the weight range of about 100–500 kg. In comparison, farmers could only estimate the LW of about a quarter of their animals within 20% of their true LW. This weight prediction equation, when translated into a weigh band, could provide a simple and reliable method for cattle keepers to estimate the weight of studied cattle breed types. 2018-01-01 2023-03-10T14:34:48Z 2023-03-10T14:34:48Z Journal Article https://hdl.handle.net/10568/129416 en Open Access Informa UK Limited Tebug, Stanly Fon; Missohou, Ayao; Sourokou Sabi, Souahibou; Juga, Jarmo; Poole, Elizabeth J.; Tapio, Miika; Marshall, Karen. 2018. Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal. Journal of Applied Animal Research 46: 87-93 |
| spellingShingle | cattle dairy cattle weight live weight systems body measurements senegal Tebug, Stanly Fon Missohou, Ayao Sourokou Sabi, Souahibou Juga, Jarmo Poole, Elizabeth J. Tapio, Miika Marshall, Karen Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal |
| title | Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal |
| title_full | Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal |
| title_fullStr | Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal |
| title_full_unstemmed | Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal |
| title_short | Using body measurements to estimate live weight of dairy cattle in low-input systems in Senegal |
| title_sort | using body measurements to estimate live weight of dairy cattle in low input systems in senegal |
| topic | cattle dairy cattle weight live weight systems body measurements senegal |
| url | https://hdl.handle.net/10568/129416 |
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