Sample,Herd,Birth_month,Collection_month,Age (years) Sample1,Herd A,August,April,14.7 Sample2,Herd A,June,April,7.86 Sample3,Herd A,October,April,6.54 Sample4,Herd A,June,April,5.88 Sample5,Herd A,November,April,4.45 Sample6,Herd A,January,April,4.29 Sample7,Herd A,October,April,6.47 Sample8,Herd A,March,April,5.12 Sample9,Herd A,February,April,11.15 Sample10,Herd A,November,April,12.44 Sample11,Herd A,March,April,7.1 Sample12,Herd A,October,August,9.88 Sample13,Herd A,November,August,2.74 Sample14,Herd E,September,August,0.88 Sample15,Herd E,September,August,0.9 Sample16,Herd A,December,August,2.7 Sample17,Herd A,January,August,7.57 Sample18,Herd E,October,August,0.85 Sample19,Herd A,February,August,13.47 Sample20,Herd E,September,August,0.9 Sample21,Herd A,October,August,8.86 Sample22,Herd A,December,August,2.69 Sample23,Herd E,October,August,0.87 Sample24,Herd A,December,August,15.7 Sample25,Herd A,January,August,2.59 Sample26,Herd A,October,August,2.83 Sample27,Herd A,October,August,2.85 Sample28,Herd E,September,August,0.92 Sample29,Herd A,October,August,2.85 Sample30,Herd A,November,August,1.78 Sample31,Herd E,September,August,0.92 Sample32,Herd A,September,August,1.88 Sample33,Herd B,August,December,5.3 Sample34,Herd E,October,March,2.46 Sample35,Herd E,October,March,2.46 Sample36,Herd E,October,March,2.46 Sample37,Herd E,November,May,3.52 Sample38,Herd E,October,May,3.59 Sample39,Herd A,October,May,0.53 Sample40,Herd E,October,May,3.61 Sample41,Herd A,November,May,2.5 Sample42,Herd E,October,May,3.59 Sample43,Herd A,August,May,1.75 Sample44,Herd A,November,May,2.48 Sample45,Herd A,January,May,0.35 Sample46,Herd A,January,May,2.32 Sample47,Herd E,October,May,3.56 Sample48,Herd E,October,May,3.61 Sample49,Herd E,November,May,3.52 Sample50,Herd E,October,May,3.61 Sample51,Herd E,September,May,3.64 Sample52,Herd E,October,May,3.55 Sample53,Herd D,October,November,3.13 Sample54,Herd D,October,November,3.1 Sample55,Herd D,October,November,2.08 Sample56,Herd D,November,November,2 Sample57,Herd C,March,November,1.75 Sample58,Herd C,December,November,1.93 Sample59,Herd C,December,November,1.96 Sample60,Herd C,July,November,2.35 Sample61,Herd E,October,September,1.89 Sample62,Herd E,September,September,1.95 Sample63,Herd E,October,September,1.89 Sample64,Herd E,November,September,1.82 Sample65,Herd E,November,September,1.84 Sample66,Herd E,September,September,1.95