105-110-calvings-9.html
AU Sire Catalogue 2016
10 / 56
other diseases hoof
health
is a very important trait. it is painful for the cow and it affects milk production and the total eco- nomy for the farmer. the hoof
health
index describes the genetic resistance of bulls daughter´s to resist hoof diseases. data comes from hoof
health
records made by hoof trimmers in the fi rst three lactation. 1 to 3 trimmings are included in each lactation. the distance between two trimmings must be at least twelve weeks. * +10 (
110
) index units in hoof
health
means 4.0% less dermatitis and 3.3% less sole ulcer * +10 (
110
) index units in other
health
means 2.7 % less treatments in fi rst lactation and 3.6 % less treatments in third lactation. hoof
health
lesions and relative weights in hoof
health
index correlations ? hoof
health
- feet & leg conf. = 0.05 (low correlation) ? hoof
health
- longevity = 0.25 (medium high correlation) infectious (hygiene related) ? heel horn erosion (9.8%) ? digital dermatitis (9.8%) ? skin proliferation (17.4%) laminitis related ? sole hemorrhages (5.8%) ? white line separation + double sole (6.7%) ? sole ulcer (44.7%) abnormal shape ? cork screw hoof (5.8%) the index ?other diseases? describes the genetic resi- stance of bull?s daughters to reproductive, metabolic and feet and leg diseases and includes breeding values for early and late reproductive disorders, metabolic diseases, feet and leg problems. the index is based on
health
records made by veterinarians from the fi rst three lactations. data collection started in 1990. disease groups are following: early and late reproductive disorders ? retained placenta ? hormonal reproductive disorders ? infective reproductive disorders ? other reproductive disorders metabolic disorders ? ketosis ? milk fever ? other metabolic diseases ? other feed related disorders ? other diseases feet & leg disorders ?our cows are walking long distances so the hoof
health
index and feet and legs are very important to us? geoff evans, cobden, vic other diseases resistance - dfs - bulls genetic trend for other disease resistance showing a nice positive direction. data from vikingholstein. 1990 1992 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
110
105
100 95 90 85 80
health
traits
110
105
102
105
107 101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
110
110
105
107 101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
110
107 101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
105
110
101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
105
107
110
102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
105
107 101
110
daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
110
105
102
105
107 101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
110
110
105
107 101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
110
107 101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
105
110
101 102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
105
107
110
102 daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130
health
traits
105
105
102
105
107 101
110
daughter fertility calvings, sire calvings, daughters mastitis resistance metabolic & other diseases longevity hoof
health
70 80 90 100
110
120 130 * * 10
index-hoof-100-11.html