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In order to evaluate the productive performance and production costs per weaned piglet and finished pig in swine farms with different PRRS virus vaccination protocols under field conditions, the indicators total piglets born alive, stillborn piglets, weaned piglets, birth and weaning weights, fattening days and final weight, as well as the costs per weaned piglet and finished pig of two farms under a semi-technification regime were analyzed: a) Protocol 1 (P1), a farm with vaccination of breeding sows and piglets; and b) Protocol 2 (P2), vaccination of breeding sows only. The productivity indicators up to weaning were evaluated with a Time-Repeated Measures Design, and the fattening indicators were evaluated with an analysis of variance with comparison of means. The costs were determined using the general cost formula. It was possible to observe differences in total number of piglets born and of mummies (P<0.05) in favor of P2, weaned piglets, as well as in birth and weaning weights in favor of P1, but no differences in the rest of the variables. Pigs finished in P1 resulted in 12 more days of fattening and a final weight of 3.13 kg more than P2. The costs per weaned piglet were $389.55 and $424.25 Mexican pesos, and the average cost per day of fattening were $10.01 and $11.43, respectively. [ABSTRACT FROM AUTHOR]

The objective was to analyze the cocoa production system from a technical and economic point of view. The information was obtained from a survey applied to 158 farmers selected at random with the simple random sampling technique in the municipalities of Montelíbano, Puerto Libertador, Tierralta and Valencia. To calculate economic returns, cost patterns were constructed using the consensus method with farmers who were experts in the crop. The sample is made up of farmers with an average age of 57 years, of which 77% are male, the most predominant educational level is primary school with 54%, and 20% did not have access to any level of schooling. Production is done through family farming; average yields are 570 k/ha-1. The average income per year is 5,687,500 $/ha-1, the costs are 5,041,015, so it generates surpluses. The internal rate of return of 36% greater than the opportunity cost of capital. It is concluded that with local production technology the crop is profitable because with the returns it is possible to recover the investment. [ABSTRACT FROM AUTHOR]