Abstract
Lameness remains a major concern for animal welfare and productivity in modern dairy production. Even though a trend toward loose housing systems exists and the public expects livestock to be kept under conditions where freedom of movement and the expression of natural behavior are ensured, restrictive housing systems continue to be the predominant type of housing in some regions. Factors associated with lameness were evaluated by application of multiple logistic regression modeling on data of 1,006 dairy cows from 56 tie stall farms in Bavaria, South Germany. In this population, approximately every fourth cow was lame (24.44% of scored animals). The mean farm level prevalence of lameness was 23.28%. In total, 22 factors were analyzed regarding their association with lameness. A low Body Condition Score (BCS) (OR 1.54 [95%-CI 1.05–2.25]) as well as increasing parity (OR 1.41 [95%-CI 1.29–1.54]) entailed greater odds of lameness. Moreover, higher milk yield (OR 0.98 [95%-CI 0.96–1.00]) and organic farming (OR 0.48 [95%-0.25–0.92]) appeared to be protectively associated with lameness. Cows with hock injuries (OR 2.57 [95%-CI 1.41–4.67]) or with swellings of the ribs (OR 2.55 [95%-CI 1.53–4.23]) had higher odds of lameness. A similar association was observed for the contamination of the lower legs with distinct plaques of manure (OR 1.88 [95%-CI 1.14–3.10]). As a central aspect of tie stall housing, the length of the stalls was associated with lameness; with stalls of medium [(>158–171 cm) (OR 2.15 [95%-CI 1.29–3.58]) and short (≤158 cm) length (OR 4.07 [95%-CI 2.35–7.05]) increasing the odds compared with long stalls (>171 cm). These results can help both gaining knowledge on relevant factors associated with lameness as well as approaching the problem of dairy cow lameness in tie stall operations.
Highlights
Lameness, defined as impaired locomotion regardless of the underlying cause [1,2,3], is the most important matter for economic and animal welfare concerns in modern dairy production [4,5,6,7,8]
A total number of 1,170 dairy cows on 56 farms in the south German state of Bavaria were included in the data set of this study based on the housing system of their cows
If cows were housed in tie stalls at farm visit, these farms were included in the present analysis which led to the inclusion of 56 farms out of the initial 265 farms
Summary
Lameness, defined as impaired locomotion regardless of the underlying cause [1,2,3], is the most important matter for economic and animal welfare concerns in modern dairy production [4,5,6,7,8]. It has considerable adverse effects on longevity, milk yield, reproductive performance, and general well-being [9,10,11,12]. Lameness is multifactorial by origin with housing conditions, onfarm management practices, and the individual animal having the greatest impact [20, 21]
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