Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny
The ultrasound structure of the udder in sheep was evaluated as a tool for monitoring mammary health and its relationship with the productive performance of the progeny. Twenty-two females and their respective offspring were randomly selected. An ultrasound evaluation and the Image J® 1480 program were performed for image analysis. In the udders, the type of tissue, consistency and presence of abscesses were measured. Body condition score, age and breed type were recorded in the dams, and birth weight, weaning weight and daily weight gain were recorded in lambs. The information was evaluated through analysis of variance, correlation analysis and multiple regression. A significative effect was found in the number of pixels per ultrasound slice (p<0.05), with the highest number of pixels in parenchyma and soft tissue. Effect of age and breed type on the number of pixels was observed. The lowest number of pixels was observed in abscesses and cistern tissue compared to parenchyma (p<0.05). A significative effect of body condition was found when udder consistency, age and breed type was considered (p<0.05). All study variables were significant in the regression model (p<0.05), where the variables that explain the greatest variability are type of tissue and body weight gain. The number of pixels tends to increase in healthy udders. It is concluded that ultrasound in sheep can be used as an indicator of mammary health with a strong relationship with daily weight gain of the lambs.
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
2022
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Castillo-Hernández, Gabriela Salvador-Flores, Omar Maldonado-Jáquez, Jorge Alonso |
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Castillo-Hernández, Gabriela Salvador-Flores, Omar Maldonado-Jáquez, Jorge Alonso Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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Castillo-Hernández, Gabriela Salvador-Flores, Omar Maldonado-Jáquez, Jorge Alonso |
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Castillo-Hernández, Gabriela |
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Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny |
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The ultrasound structure of the udder in sheep was evaluated as a tool for monitoring mammary health and its relationship with the productive performance of the progeny. Twenty-two females and their respective offspring were randomly selected. An ultrasound evaluation and the Image J® 1480 program were performed for image analysis. In the udders, the type of tissue, consistency and presence of abscesses were measured. Body condition score, age and breed type were recorded in the dams, and birth weight, weaning weight and daily weight gain were recorded in lambs. The information was evaluated through analysis of variance, correlation analysis and multiple regression. A significative effect was found in the number of pixels per ultrasound slice (p<0.05), with the highest number of pixels in parenchyma and soft tissue. Effect of age and breed type on the number of pixels was observed. The lowest number of pixels was observed in abscesses and cistern tissue compared to parenchyma (p<0.05). A significative effect of body condition was found when udder consistency, age and breed type was considered (p<0.05). All study variables were significant in the regression model (p<0.05), where the variables that explain the greatest variability are type of tissue and body weight gain. The number of pixels tends to increase in healthy udders. It is concluded that ultrasound in sheep can be used as an indicator of mammary health with a strong relationship with daily weight gain of the lambs. |
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
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2022 |
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https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/21301 |
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oai:ojs.csi.unmsm:article-213012022-06-30T18:14:24Z Mammary echography in ewes as a tool to evaluate udder abnormalities and its relationship with performance of their progeny Ecografía mamaria en ovejas como herramienta para evaluar anomalías en la ubre y su relación con el desarrollo de la progenie Castillo-Hernández, Gabriela Salvador-Flores, Omar Maldonado-Jáquez, Jorge Alonso ultrasonography images growth lambs ultrasonografía imágenes crecimiento corderos The ultrasound structure of the udder in sheep was evaluated as a tool for monitoring mammary health and its relationship with the productive performance of the progeny. Twenty-two females and their respective offspring were randomly selected. An ultrasound evaluation and the Image J® 1480 program were performed for image analysis. In the udders, the type of tissue, consistency and presence of abscesses were measured. Body condition score, age and breed type were recorded in the dams, and birth weight, weaning weight and daily weight gain were recorded in lambs. The information was evaluated through analysis of variance, correlation analysis and multiple regression. A significative effect was found in the number of pixels per ultrasound slice (p<0.05), with the highest number of pixels in parenchyma and soft tissue. Effect of age and breed type on the number of pixels was observed. The lowest number of pixels was observed in abscesses and cistern tissue compared to parenchyma (p<0.05). A significative effect of body condition was found when udder consistency, age and breed type was considered (p<0.05). All study variables were significant in the regression model (p<0.05), where the variables that explain the greatest variability are type of tissue and body weight gain. The number of pixels tends to increase in healthy udders. It is concluded that ultrasound in sheep can be used as an indicator of mammary health with a strong relationship with daily weight gain of the lambs. Se evaluó la estructura ecográfica de la ubre en ovejas como herramienta de seguimiento a la salud mamaria y su relación con el comportamiento productivo de la progenie. Se eligieron al azar 22 hembras y sus respectivas crías. Se realizó la evaluación ecográfica y el programa Image J® 1.480 para el análisis de las imágenes. En las ubres se midió el tipo de tejido, consistencia y presencia de abscesos. En las madres se registró condición corporal (CC), edad y tipo racial y en los corderos se registró el peso al nacimiento, peso al destete y ganancia diaria de peso (GDP). La información se analizó por medio de análisis de varianza, análisis de correlación y regresión múltiple. Se encontró un efecto en la cantidad de pixeles por corte ecográfico (CE) (p<0.05), siendo la mayor cantidad de pixeles en parénquima y tejido suave. Se observó efecto de edad y tipo racial en el número de pixeles. La menor cantidad de pixeles se observó en abscesos y tejido de cisterna en comparación con el parénquima (p<0.05). Se encontró un efecto de CC cuando se consideró la consistencia (p<0.05), así como edad y tipo racial. Todas las variables en estudio fueron significativas en el modelo de regresión (p<0.05). Las variables que explican mayor variabilidad son tipo de tejido y GDP. El número de píxeles tiende a incrementar en ubres sanas. Se concluye que la ecografía en ovejas puede utilizarse como indicador de la salud mamaria con una fuerte relación en particular con la ganancia diaria de peso de los corderos. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2022-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article application/pdf https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/21301 10.15381/rivep.v33i3.21301 Revista de Investigaciones Veterinarias del Perú; Vol. 33 No. 3 (2022); e21301 Revista de Investigaciones Veterinarias del Perú; Vol. 33 Núm. 3 (2022); e21301 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/21301/18192 Derechos de autor 2022 Gabriela Castillo-Hernández, Omar Salvador-Flores, Jorge Alonso Maldonado-Jáquez http://creativecommons.org/licenses/by/4.0 |