Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas
Scale is the most accurate means of measuring the actual body weight (BW) in developing heifers. However, when it is not available, indirect tools to estimate BW are needed. The objective of this study was to evaluate the distance between the left and right coxal tuberosity (DLRCT) as potential esti...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Facultad de Ciencias Veterinarias, Universidad Austral de Chile
2018
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| Online Access: | https://scielo.conicyt.cl/pdf/amv/v46n3/art14.pdf http://hdl.handle.net/20.500.12123/3927 http://dx.doi.org/10.4067/S0301-732X2014000300014 |
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| author | Bretschneider, Gustavo Cuatrin, Alejandra Arias, Dario Raul Vottero, Dante Alberto |
| author_browse | Arias, Dario Raul Bretschneider, Gustavo Cuatrin, Alejandra Vottero, Dante Alberto |
| author_facet | Bretschneider, Gustavo Cuatrin, Alejandra Arias, Dario Raul Vottero, Dante Alberto |
| author_sort | Bretschneider, Gustavo |
| collection | INTA Digital |
| description | Scale is the most accurate means of measuring the actual body weight (BW) in developing heifers. However, when it is not available, indirect tools to estimate BW are needed. The objective of this study was to evaluate the distance between the left and right coxal tuberosity (DLRCT) as potential estimator of shrunk BW (SBW) of developing Holstein heifers as compared with the actual weight measured by an electronic scale. The study included pre-breeding Argentinean Holstein females from 3 to 21 months of age. A dataset comprising 496 observations was used to quantify the relationship between the DLRCT (cm) and the SBW (kg) by the least squared method. The power function Y = 0.131X2.0758, where X = DLRCT provided the best fit (P < 0.0001) for predicting SBW. A dataset comprising 194 observations was used to assess the strength of agreement of the power function. The Lin correlation coefficient value was 0.97 and the computed 95% CI was 0.965-0.979. The mean difference between observed and estimated SBW was -0.99 kg. There was no significant difference (t = -0.83; P = 0.41) in the mean SBW between observed and estimated data. As a predictor of SBW, particularly in heifers ≥ 5 months of age and ≤ 350 kg BW (i.e. ≤ 45 cm), the DLRCT demonstrated to be a useful alternative that can be easily applied during any practice usually performed on replacement heifers, without requiring a squeeze chute. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3927 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Facultad de Ciencias Veterinarias, Universidad Austral de Chile |
| publisherStr | Facultad de Ciencias Veterinarias, Universidad Austral de Chile |
| record_format | dspace |
| spelling | INTA39272018-11-20T13:00:24Z Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas Bretschneider, Gustavo Cuatrin, Alejandra Arias, Dario Raul Vottero, Dante Alberto Ganado Bovino Novilla Razas (animales) Peso Corporal Alimentación de los Animales Pastizales Medición Cattle Heifers Breeds (animals) Body Weight Animal Feeding Pastures Measurement Raza Holstein Vaquillonas Scale is the most accurate means of measuring the actual body weight (BW) in developing heifers. However, when it is not available, indirect tools to estimate BW are needed. The objective of this study was to evaluate the distance between the left and right coxal tuberosity (DLRCT) as potential estimator of shrunk BW (SBW) of developing Holstein heifers as compared with the actual weight measured by an electronic scale. The study included pre-breeding Argentinean Holstein females from 3 to 21 months of age. A dataset comprising 496 observations was used to quantify the relationship between the DLRCT (cm) and the SBW (kg) by the least squared method. The power function Y = 0.131X2.0758, where X = DLRCT provided the best fit (P < 0.0001) for predicting SBW. A dataset comprising 194 observations was used to assess the strength of agreement of the power function. The Lin correlation coefficient value was 0.97 and the computed 95% CI was 0.965-0.979. The mean difference between observed and estimated SBW was -0.99 kg. There was no significant difference (t = -0.83; P = 0.41) in the mean SBW between observed and estimated data. As a predictor of SBW, particularly in heifers ≥ 5 months of age and ≤ 350 kg BW (i.e. ≤ 45 cm), the DLRCT demonstrated to be a useful alternative that can be easily applied during any practice usually performed on replacement heifers, without requiring a squeeze chute. El método más preciso para medir el peso corporal (BW) es la balanza. Sin embargo, cuando la misma no está disponible son necesarios métodos indirectos para estimar el BW. El objetivo de este estudio fue evaluar la distancia entre la tuberosidad coxal izquierda y derecha (DLRCT) como potencial estimador del BW desbastado (SBW) de vaquillonas Holstein en desarrollo, las que fueron pesadas simultáneamente con una balanza electrónica. El estudio incluyó hembras Holstein Argentino preservicio de 3 a 21 meses de edad. Se usaron 496 observaciones para cuantificar la relación entre la DLRCT (cm) y el SBW (kg) por el método de los cuadrados mínimos. La función exponencial Y = 0,131X2,0758, donde X = DLRCT tuvo el mejor ajuste (P < 0,0001) para predecir el SBW. Se emplearon 194 observaciones para validar la función. El coeficiente de correlación de Lin fue 0,97 y el IC 95% fue 0,965-0,979. La diferencia media entre el valor observado y estimado del SBW fue -0,99 kg. No hubo diferencias significativas (t = -0,83; P = 0,41) entre la media observada y estimada del SBW. Como un estimador del SBW, particularmente en vaquillonas ≥ 5 meses de edad y ≤ 350 kg BW (i.e. ≤ 45 cm), la DLRCT demostró ser una alternativa útil que puede ser usada fácilmente durante cualquier práctica habitual realizada sobre las vaquillonas en desarrollo, sin necesidad de instalaciones especiales para la sujeción ni el manipuleo del ganado. EEA Rafaela Fil: Bretschneider, Gustavo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Cuatrin, Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Arias, Dario Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Vottero, Dante Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina 2018-11-20T12:58:47Z 2018-11-20T12:58:47Z 2014 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://scielo.conicyt.cl/pdf/amv/v46n3/art14.pdf http://hdl.handle.net/20.500.12123/3927 0301-732X http://dx.doi.org/10.4067/S0301-732X2014000300014 eng info:eu-repograntAgreement/INTA/SANFE/1261102/AR./Desarrollo territorial sustentable de la zona mixta de Santa Fe. info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Facultad de Ciencias Veterinarias, Universidad Austral de Chile Archivos de Medicina Veterinaria (Valdivia) 46 (3) : 439-443 (2014) |
| spellingShingle | Ganado Bovino Novilla Razas (animales) Peso Corporal Alimentación de los Animales Pastizales Medición Cattle Heifers Breeds (animals) Body Weight Animal Feeding Pastures Measurement Raza Holstein Vaquillonas Bretschneider, Gustavo Cuatrin, Alejandra Arias, Dario Raul Vottero, Dante Alberto Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas |
| title | Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas |
| title_full | Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas |
| title_fullStr | Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas |
| title_full_unstemmed | Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas |
| title_short | Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas |
| title_sort | estimation of body weight by an indirect measurement method in developing replacement holstein heifers raised on pasture estimacion del peso corporal mediante un metodo indirecto en vaquillonas holstein de reposicion criadas sobre pasturas |
| topic | Ganado Bovino Novilla Razas (animales) Peso Corporal Alimentación de los Animales Pastizales Medición Cattle Heifers Breeds (animals) Body Weight Animal Feeding Pastures Measurement Raza Holstein Vaquillonas |
| url | https://scielo.conicyt.cl/pdf/amv/v46n3/art14.pdf http://hdl.handle.net/20.500.12123/3927 http://dx.doi.org/10.4067/S0301-732X2014000300014 |
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