Hereford sonnipörssi
Tammikuu 18, 2018, 18:21 *
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Kirjoittaja Aihe: Longevity  (Luettu 1821 kertaa)
PekkaLah
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« : Tammikuu 31, 2011, 14:30 »

The trend of our results is in agreement with the data published by the  NIAQC (1998-2003),
according to which Hungarian Grey cows were the oldest at the age of first calving (3.82 years
old), followed by the group comprising Limousin crossbred (2.99 years), Limousin (2.90 years),
Charolais (2.87 years) and Hereford crossbred (2.29 years) and, very close together, by Angus
(2.35 years) and Hereford (2.23 years).
Based on the results of our own data processing, age at culling is the highest for Hereford
crossbred cows (12.73 years), slightly preceding Hungarian Grey cows (12.42 years). Hereford
(11.03 years) and Angus (11.09 years) are next with nearly identical values, followed by
Charolais (10.89 years) and Limousin (10.61 years).
Longevity is the highest in the case of Hereford crossbred cows (10.79 years), followed by
the group comprising Hereford purebred (9.08 years), Hungarian Grey (8.95 years) and Angus
(8.28 years). The longevities of Charolais and Limousin were close to 8 years (7.91 and 7.81
years, respectively), whereas that of Limousin crossbreds was below six years (5.55 years)


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