The effect of the transport time on lost of live weight and carcass of broilers in two lines in four different farms was evaluated. 930 birds were taken to analyze the transport effect from the farm to the benefit plant over lines and sexes and its influence on mortality and economical lost. 96 trips with 163.724 broilers were analyzed to characterize the information of the variables time, line, sex, and weight, we also used descriptive statistical, correlation analysis and two regression models to determine the economic lost, and to establish the existence of differences in the reduction, we worked with one random design 4x2x2. Additionally and because of the different handling follow in each farm a random design was implemented 2x2. Difference in the lost weight among males and females was found., there were no significant differences for the carcass in the four farms, and into the ranch only were differences for sex. Males were more affected by the conditions, the quality and the transport time than the distance from the farm to the benefit plant.

A characterization of the hygienic and sanitary quality of uncooked milk in the Alto de Chicamocha (Department of Boyacá) was made. An analysis with laboratory tests was made in which the total count of Somatic Cells, Mesophiles, Staphylococcus, Coliforms and Listeria were evaluated in Petrifilm 3M® slides and the Brucella (milk ring test) test was carried out in 34 herds registered in the Federación de Ganaderos de Boyacá, in two different periods of the year. Statistics differences were found between the time of recollection and total counts. In the raining season cows are exposed to environmental contamination (mud, dung, etc), and therefore the total count of Mesophiles, Coliforms and Somatic Cells increases. Furthermore, the actives related to milking routine are not being effective in the reduction of the microbiologic counts. As consequence, the increase of micro organisms in the mammary gland causes mastitis and therefore a decrease in the quality of milk, which is reflected in the sanitary and hygienic components of the product and so in the economic benefits received by the producer.