A higher risk of being lame was found for the presence of claw overgrowth , the first 120 days in milk , larger herd sizes , and increasing parity .
Background Lameness in dairy cows has been an ongoing concern of great relevance to animal welfare and productivity in modern dairy production .
Many studies have examined associations between various factors related to housing , management , and the individual animal and the occurrence of lameness .
The objective of this systematic review was to answer the research question “ what are risk factors associated with lameness in dairy cows that are housed in free stall barns or tie stall facilities ” .
Furthermore , we performed a synthesis of current evidence on certain risk factors by means of a meta- analysis to illustrate the strength of their association with bovine lameness .
The effect of lameness on the fertility of dairy cattle in a seasonally breeding pasture-based system.
The effect of lameness on the fertility of dairy cattle is well recognized . But , the effect of lameness on the fertility of seasonally breeding cattle in pasture-based systems is less well characterized . This prospect i ve cohort study of 463 cows on 1 farm in the lower North Isl and of New Zeal and was design ed to assess the effect of clinical lameness , as identified by farm staff , on the hazard of conception after the planned start-of-mating date . A Cox proportional hazards model with time-varying covariates was used . After controlling for the effect of parity , breed , body weight at calving , and calving-to-planned start of mating interval , the daily hazard of conception for cows identified as lame was 0.78 ( 95 % confidence interval : 0.68 - 0.86 ) compared with non-lame cows . Lame cows took 12 d longer to get pregnant compared with their non-lame counterparts
A higher risk of being lame was found for the presence of claw overgrowth , the first 120 days in milk , larger herd sizes , and increasing parity .
Background Lameness in dairy cows has been an ongoing concern of great relevance to animal welfare and productivity in modern dairy production .
Many studies have examined associations between various factors related to housing , management , and the individual animal and the occurrence of lameness .
The objective of this systematic review was to answer the research question “ what are risk factors associated with lameness in dairy cows that are housed in free stall barns or tie stall facilities ” .
Furthermore , we performed a synthesis of current evidence on certain risk factors by means of a meta- analysis to illustrate the strength of their association with bovine lameness .