Survey quantifies cost of organic milk production in California

This study measures the cost of organic milk production, and in particular, the differences in cost of production between organic and conventional milk in California.Results show that the total cost of production on a per cow and a per hundredweight basis is about 10% higher for organic producers than for conventional producers in the surveyed regi

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Evolutionary history of the vertebrate Piwi gene family

PIWIs are regulatory proteins that belong to the Argonaute family.Piwis are primarily expressed in gonads and protect the germline against the mobilization and propagation of transposable elements (TEs) through transcriptional gene silencing.Vertebrate genomes encode up to four Piwi genes: Piwil1, Piwil2, Piwil3 and Piwil4, but their duplication hi

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