Jack Daniel's maker Brown-Forman beat Wall Street estimates for first-quarter sales on the back of steady demand for its ready-to-drink beverages and spirits. Brown-Forman said sales in international markets were hit in the quarter due to the absence of American-made alcohol from retail shelves in most Canadian provinces. ADVERTISEMENTQuarterly HighlightsOrganic sales in the United States fell 2% in the quarter, compared with a 4% drop a year earlier. Overall, organic sales, which exclude the impact of acquisitions and divestitures, was up 1%, compared with a 4% decline a year earlier. Net sales for the quarter ended 31 July fell 3% from a year earlier to $924 million, compared with estimates of $909.2 million.