Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude
The aim of this study was to estimate the prevalence of subclinical mastitis and identify environmental risk factors in dairy cattle from small producers in the high Peruvian mountains. A cross-sectional study was carried out, analyzing milk samples per mammary quarter from 300 Brown Swss cows belonging to 38 producers from the district of Santa Rosa, Melgar, in Puno, Peru. The area is located at an altitude of 3900-4300 m. The California Mastitis Test (CMT) was used for the detection of subclinical mastitis, while the identification of environmental factors was done through surveys and inspections to the sites. The prevalence of subclinical mastitis was 47.0% (141/300) and 21.2% (254/1200) at the level of cows and mammary quarters, respectively, without significant differences between quarters (p>0.05). The 15.75 and 24.25% of the four mammary quarters were positive to the degree of traces and level 1 of the CMT, respectively. Within the environmental factors, the type of milking (p=0.0004), the let-down of the milk by the calf (p=0.0001) and two milkings per day (p=0.001) were determining factors for the presentation of subclinical mastitis, while the pre-milking hygiene of the cow and the hygiene of the milkers did not denote importance.
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
2022
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oai:ojs.csi.unmsm:article-204662022-02-25T20:47:07Z Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude Mastitis subclínica bovina y factores de riesgo ambientales en pequeños productores de ganado lechero criado en alta montaña Sánchez Herencia, Diana Mamani-Mango, Guiulfo Duriel high mountains subclinical mastitis small producers cows alta montaña mastitis subclínica pequeños productores vacas The aim of this study was to estimate the prevalence of subclinical mastitis and identify environmental risk factors in dairy cattle from small producers in the high Peruvian mountains. A cross-sectional study was carried out, analyzing milk samples per mammary quarter from 300 Brown Swss cows belonging to 38 producers from the district of Santa Rosa, Melgar, in Puno, Peru. The area is located at an altitude of 3900-4300 m. The California Mastitis Test (CMT) was used for the detection of subclinical mastitis, while the identification of environmental factors was done through surveys and inspections to the sites. The prevalence of subclinical mastitis was 47.0% (141/300) and 21.2% (254/1200) at the level of cows and mammary quarters, respectively, without significant differences between quarters (p>0.05). The 15.75 and 24.25% of the four mammary quarters were positive to the degree of traces and level 1 of the CMT, respectively. Within the environmental factors, the type of milking (p=0.0004), the let-down of the milk by the calf (p=0.0001) and two milkings per day (p=0.001) were determining factors for the presentation of subclinical mastitis, while the pre-milking hygiene of the cow and the hygiene of the milkers did not denote importance. El objetivo del estudio fue estimar la prevalencia de mastitis subclínica e identificar los factores de riesgo ambientales en vacunos lecheros de pequeños productores en alta montaña peruana. Se realizó un estudio transversal, analizando muestras de leche por cuarto mamario individual de 300 vacas Brown Swiss pertenecientes a 38 productores del distrito de Santa Rosa, Melgar, en Puno, Perú. La zona se encuentra a 3900-4300 m de altitud. Se utilizó la prueba de Mastitis de California (CMT) para la detección de mastitis subclínica, en tanto que la identificación de los factores ambientales se hizo mediante encuestas e inspecciones en las granjas. La prevalencia de mastitis subclínica fue de 47.0% (141/300) y 21.2% (254/1200) a nivel de vacas y cuartos mamarios, respectivamente, sin diferencias significativas entre cuartos mamarios (p>0.05). El 15.75 y 24.25% de los cuartos mamarios fue positivo al grado de trazas y nivel 1 del CMT, respetivamente. Dentro de los factores ambientales; el tipo de ordeño (p=0.0004), la inducción de la bajada de la leche por el ternero (p=0.0001) y dos ordeños al día (p=0.001) fueron determinantes para la presentación de mastitis subclínica, mientras que la higiene previa al ordeño de la vaca y la higiene del ordeñador no denotan importancia. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2022-02-25 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/20466 10.15381/rivep.v33i1.20466 Revista de Investigaciones Veterinarias del Perú; Vol. 33 No. 1 (2022); e20466 Revista de Investigaciones Veterinarias del Perú; Vol. 33 Núm. 1 (2022); e20466 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20466/17956 Derechos de autor 2022 Diana Sánchez Herencia, Guiulfo Duriel Mamani-Mango http://creativecommons.org/licenses/by/4.0 |
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Biblioteca de la Facultad de Medicina Veterinaria |
| language |
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Digital |
| author |
Sánchez Herencia, Diana Mamani-Mango, Guiulfo Duriel |
| spellingShingle |
Sánchez Herencia, Diana Mamani-Mango, Guiulfo Duriel Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| author_facet |
Sánchez Herencia, Diana Mamani-Mango, Guiulfo Duriel |
| author_sort |
Sánchez Herencia, Diana |
| title |
Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| title_short |
Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| title_full |
Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| title_fullStr |
Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| title_full_unstemmed |
Subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| title_sort |
subclinical bovine mastitis and environmental risk factors in small producers of dairy cattle raised in the high altitude |
| description |
The aim of this study was to estimate the prevalence of subclinical mastitis and identify environmental risk factors in dairy cattle from small producers in the high Peruvian mountains. A cross-sectional study was carried out, analyzing milk samples per mammary quarter from 300 Brown Swss cows belonging to 38 producers from the district of Santa Rosa, Melgar, in Puno, Peru. The area is located at an altitude of 3900-4300 m. The California Mastitis Test (CMT) was used for the detection of subclinical mastitis, while the identification of environmental factors was done through surveys and inspections to the sites. The prevalence of subclinical mastitis was 47.0% (141/300) and 21.2% (254/1200) at the level of cows and mammary quarters, respectively, without significant differences between quarters (p>0.05). The 15.75 and 24.25% of the four mammary quarters were positive to the degree of traces and level 1 of the CMT, respectively. Within the environmental factors, the type of milking (p=0.0004), the let-down of the milk by the calf (p=0.0001) and two milkings per day (p=0.001) were determining factors for the presentation of subclinical mastitis, while the pre-milking hygiene of the cow and the hygiene of the milkers did not denote importance. |
| publisher |
Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
| publishDate |
2022 |
| url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20466 |
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