国家/地区
Country/region | 性状定义
Trait definition | 遗传评估方法
Methods of genetic evaluation | 指数中的权重
Weight in index | 加拿大
Canada | 直接长寿：头胎产犊 - 120 d、120- 240 d、240 d-2胎产犊、2胎产犊 - 3胎产犊、3胎产犊- 4胎产犊期间的存活状态,共5个性状
Direct longevity: a total 5 traits, survival status from the 1st calving to day 120, day 120 to day 240, day 240 to 2nd calving, 2nd calving to 3rd calving, and 3rd calving to 4th calving | 五性状 - BLUP - 动物模型
5 traits - BLUP - Animal model | 8%（LPI,2019） | 间接长寿：包括体细胞评分、泌乳速度、不返情率、产犊至首配间隔和部分体型性状
Indirect longevity: including somatic cell score, milking speed, non-return rate, calving to first service interval and some type traits | 美国
US | 直接长寿：生产寿命
Direct longevity: productive life | 单性状 - BLUP - 动物模型
Single trait - BLUP - Animal model | 4%（TPI,2017） | 间接长寿：包括体细胞评分、产奶量、乳脂量、乳蛋白量和部分体型性状
Indirect longevity: including somatic cell score, milk yield, milk fat yield, milk protein yield and some type traits | 3%（TPI,2017） | 荷兰
Netherlands | 头胎产犊后1 - 72月龄期间的存活状态
Survival status from the first calving to the age of 72 months | 单性状 - 随机回归 - BLUP - 动物模型
Single trait - Random regression - BLUP - Animal model | 8%（NVI,2019） | 德国
Germany | 前3胎次内泌乳0-49 d、50- 249 d、250 d -下次产犊期间的存活状态,共9个性状
A total of 9 traits, survival status from day 0 to 49, day 50 to 249 and day 250 to the next calving after the current calving among the first 3 lactations | 多性状 - BLUP - 动物模型
Muti-traits - BLUP - Animal model | 20%（RZG,2018） | 法国
France | 直接长寿：生产寿命
Direct longevity: productive life | 单性状-生存分析-公畜外祖父模型
Single trait - Survival analysis - Sire-maternal grand sire model | 5%（ISU,2019） | 间接长寿：包括体细胞数、临床乳房炎、泌乳速度、部分繁殖和体型性状
Indirect longevity: including somatic cell count, clinical mastitis, some reproduction and type traits | — | 北欧
Nodic | 头胎产犊至2、3、4、5、6胎产犊时生产寿命,共5个性状
A total of 5 traits, the partial productive life from the first calving to the 2nd, 3rd, 4th, 5th, 6th calving | 多性状 - BLUP - 动物模型
Muti-traits - BLUP - Animal model
| 6%（NTM,2018） | 新西兰
New Zealand | 直接长寿：头胎产犊至2、3、4胎产犊的存活状态,共3个性状
Direct longevity: a total of 3 traits, survival status from the first calving to the 2nd, 3rd, 4th calving | 多性状 - BLUP - 动物模型
Muti-traits - BLUP - Animal model | 6%（BW,2016） | 间接长寿：包括头胎乳蛋白量、头胎体况评分、头胎泌乳速度、头胎体细胞数和部分体型性状等
Indirect longevity: including milk protein yield, body condition score, milking speed and somatic cell count in 1st lactation, and some type traits | — | 澳大利亚
Australia | 前7胎各胎次内母牛的存活状态,共7个性状
A total of 7 traits, survival status from the first calving to the 2nd, 3rd, 4th, 5th, 6th, 7th, 8th calving | 多性状 - BLUP - 动物模型
Muti-traits - BLUP - Animal model | 8%（BPI,2014） |
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