Skip to main content

Table 1 Local effects on milk after intramammary challenge of Q-/q-uniparous cows with S. aureus or E. coli

From: In vivo model to study the impact of genetic variation on clinical outcome of mastitis in uniparous dairy cows

Udder secretion scoreaTime (h) relative to S. aureus challengeTime (h) relative to E. coli challenge
0122436486072849601224
QqQqQqQqQqQqQqQqQqQqQqQq
Normal milk12121212117825261525222666611
Watery milk, no clots    1214   121  1       
Milk, few small clots      233413132433    21
Milk, several clots     2122324124334     1
Milk, many clots     1   2  211122      
Serous milk, mainly clots        1113 2 2 1      
Serum-like secretion       11 2 11  1     33
  1. audder secretion score represents signs of inflammation in milk secretion. Animals with divergent haplotypes (Q/q) received intramammary challenge with S. aureus (24 animals (Q: n = 12 versus q: n = 12), 2 udder quarters) or E. oli (12 animals (Q: n = 6 versus q: n = 6), 1 udder quarter). For S. aureus-challenged animals, a mean score is given for two challenged udder quarters
\