The number of qualified Ten Tons Cow on top reproductive performance in Taiwan ¡i¤¤¤å¡j ¡iEnglish¡j
Last Year of milk sampling 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Total
Ten Tons Cow, head 44 75 121 164 187 233 314 412 208 173 254 326 333 360 387 476 466 615 777 849 930 854 1535 2651 12744
    in farms 32 39 63 70 80 78 92 86 61 58 71 75 66 70 73 83 86 96 103 108 105 106 129 137 -
    in counties 8 10 12 14 12 9 10 12 9 10 9 11 10 9 9 11 10 11 13 12 12 12 13 13 -
Having maternal pedigree in upward three or more generations, head 4 3 3 10 11 23 27 38 31 23 36 77 63 91 91 106 132 162 277 293 337 234 435 704 3211
Top Reproductive Performance Cow, head - 2 1 4 6 9 17 20 17 5 15 38 35 45 54 65 90 96 170 189 181 136 245 282 1722
    in farms - 2 1 4 6 6 13 11 8 5 12 17 17 20 27 29 31 41 39 43 53 44 61 67 -
    in counties - 2 1 4 4 4 6 5 5 2 5 4 4 5 8 8 7 8 7 9 9 10 9 10 -
Top Reproductive Performance with less summer infertility, head - 2 - 2 3 4 10 8 9 4 6 16 21 22 38 47 63 64 115 134 116 86 157 147 1074
For top reproductive performance of Ten Tons Cow, the cow is designated to have milk yield of 305-2X-ME greater than 10,000 kg for hot and humid environment in Taiwan. In order to be a qualified on top reproductive performance cow, a Ten Tons Cow must have age at first calving within 27 months old, more than 3 lactations with a calving interval less than 365 days, no calving difficulty, and conceived within 90 days after calving.