Evaluación de la limpieza corporal en vacas lecheras como indicador de bienestar animal y su relación sobre la presentación de mastitis subclínica en un hato de la sabana de Bogotá
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2010
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Universidad de La Salle. Facultad de Ciencias Agropecuarias. Zootecnia
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Con el propósito de realizar una evaluación la limpieza corporal en vacas lecheras como indicador de bienestar animal y su relación sobre la presentación de mastitis subclínica en un hato de la sabana de Bogotá; se efectuó un análisis mediante observaciones físicas individuales a los animales de niveles de limpieza corporal en ubre, miembros traseros y flancos. El sistema productivo fue visitado entre noviembre 2008 y abril 2009. Se evaluaron 20 vacas lecheras, escogidas de acuerdo a su nivel de limpieza corporal, mediante observación directa en la sala de ordeño. El nivel de limpieza corporal o grado de suciedad se clasificó en una escala de (1=Muy limpia a 4=Muy sucia). Durante el ordeño a las vacas seleccionadas se les tomaba las muestras de leche y se realizaron los siguientes análisis: CMT, recuento de células somáticas (DCC de Laval®) y pruebas en el laboratorio para la identificación de microorganismos que inciden en la mastitis. Las observaciones recopiladas fueron ingresadas a una planilla electrónica del programa Microsoft® Excel XP. El análisis estadístico de los datos se realizó por medio del programa estadístico SPSS 10.0 aplicando un modelo de regresión logística paso a paso, donde se utilizaron pruebas de chi cuadrado, pruebas t y correlación de Pearson, según correspondiera; para determinar las diferencias estadísticamente significativas para cada variable. Se realizó un estimación lineal en relación del RCS y los niveles de limpieza corporal. Se encontró que los niveles de limpieza corporal presentaron diferencias significativas (p
For the purpose of an assessment of levels of body cleansing in dairy cows as an indicator of animal welfare and their relationship subclinical mastitis in a herd of the savanna of Bogotá; reporting an analysis from individual physical observations was made the animals body cleansing in udder, hind limbs and flanks. The production system was visited between November 2008 and April 2009. Evaluated 20 cows milk, which were selected according to their level of body, cleaning through direct observation in the milking room. The level of body cleansing or degree of soiling classified on a scale from (1 = very clean 4 = very dirty). During milking the cows selected took them samples of milk and conducted the following analyses: CMT, somatic cell count (Laval ® DCC) and testing in the laboratory for identification of micro-organisms affecting mastitis. The collected comments were entered an electronic form of the Microsoft ® Excel XP program. Statistical analysis of data was made by means of statistical program SPSS 10.0 by applying a step by step, logistic regression model where used chi square tests, tests t and Pearson correlation as appropriate; to determine statistically significant differences for each variable. Found that levels of body cleansing presented significant differences (p
For the purpose of an assessment of levels of body cleansing in dairy cows as an indicator of animal welfare and their relationship subclinical mastitis in a herd of the savanna of Bogotá; reporting an analysis from individual physical observations was made the animals body cleansing in udder, hind limbs and flanks. The production system was visited between November 2008 and April 2009. Evaluated 20 cows milk, which were selected according to their level of body, cleaning through direct observation in the milking room. The level of body cleansing or degree of soiling classified on a scale from (1 = very clean 4 = very dirty). During milking the cows selected took them samples of milk and conducted the following analyses: CMT, somatic cell count (Laval ® DCC) and testing in the laboratory for identification of micro-organisms affecting mastitis. The collected comments were entered an electronic form of the Microsoft ® Excel XP program. Statistical analysis of data was made by means of statistical program SPSS 10.0 by applying a step by step, logistic regression model where used chi square tests, tests t and Pearson correlation as appropriate; to determine statistically significant differences for each variable. Found that levels of body cleansing presented significant differences (p
Palabras clave
Vacas lecheras, Bienestar animal, Mastitis subclínica