Caracterización de la curva de lactancia en vacas gyr y girolando en Santo Domingo de los Tsachilas, Ecuador
In the Santo Domingo de los Tsáchilas province of the Santo Domingo ridge at 655 meters above sea level; the study of the Characterization of the lactation curve of Gyr and Girolando cows, Ecuador was carried out. A general linear GLM model was applied, where the data was analyzed using the Incomple...
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| Format: | bachelorThesis |
| Jezik: | spa |
| Izdano: |
2023
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| Teme: | |
| Online dostop: | https://dspace.ueb.edu.ec/handle/123456789/6100 |
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Označite | Izvleček: | In the Santo Domingo de los Tsáchilas province of the Santo Domingo ridge at 655 meters above sea level; the study of the Characterization of the lactation curve of Gyr and Girolando cows, Ecuador was carried out. A general linear GLM model was applied, where the data was analyzed using the Incomplete Gamma function in the SAS, vw.9.4. The comparison of the least square means was carried out through the PROC MEANS and the correlation of the milk production characters through the CORR procedure. The DLAC lactation curve was determined, it was Y_t=16.2796 ±0.0473t^(0.0011584 ±0.0266) e^((-0.00089322 ±0.00022t)); the duration of lactation _ DLAC, was 311.1 ±11.4 days; the total production was 7513.0 ± 65.75kg; The correlation between total milk production and control day production was 14.81, which corresponded to the end of lactation. It is concluded that the Incomplete Gamma function adjusted the milk production of Gyr and Girolando cows in the Santa Amalia cattle ranch, in the Santo Domingo canton |
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