Lameness in dairy cows: impact on cow health, milk yield and fertility

  • Fertility cow
  • Hoof Health
Apr 286:00 AM

Lameness is one of the most common problems on dairy farms and has a direct impact on dairy cow health, production, and herd welfare. Yet lameness is often addressed only when a cow is visibly lame. By that time, there is usually already a prolonged period of pain, reduced feed intake, and production losses. Within an integrated approach to cow health management, early detection of lameness is essential. Lameness does not only affect the hoof, but impacts the overall health of the dairy herd and ultimately the technical and economic results of the farm. 

What is lameness in dairy cows?

Lameness is a symptom of pain in the locomotor system, most often caused by infectious or non-infectious hoof disorders. However, factors such as nutrition, floor quality, hygiene, and stocking density also play a role.  

Within the broader context of dairy herd health, lameness is an important health indicator. It provides insight into comfort levels, ration composition, and the effectiveness of cow health management. A lame cow is often already experiencing discomfort for a longer period. Early cow health monitoring is therefore crucial to prevent long-term damage. 

How to recognise lameness at an early stage? 

Early detection requires daily attention and insight into cow health indicators. Lameness often develops gradually. Subtle signs include shorter strides, uneven weight bearing on the hooves, and an arched back while walking. Behavioral changes are also important. Lame cows often lie down longer, are less active, and visit the feed fence or milking robot less frequently. Behavioral monitoring helps identify changes early. Deviations in activity, feed intake, or milking frequency may indicate early-stage issues, for example through systems such as Lely Horizon.

Acute and chronic lameness

Within dairy herd health management, it is important to distinguish between acute and chronic lameness. Acute lameness develops suddenly, for example due to injury or infection. Quick treatment prevents further damage and limits the negative impact on milk yield. Chronic lameness develops gradually and may remain unnoticed for a long time. This form is more economically damaging, as cows perform below their production potential for extended periods. Chronic pain affects cow health, increases the risk of culling, and increases the risk of additional disorders. 

The link between feed intake and lameness

A lame cow moves less and visits the feed fence less often. As a result, dry matter intake declines and overall nutritional status declines. An unbalanced ration further increases the risk of rumen acidosis, which in turn can lead to hoof problems. A balanced ration for dairy cows supports not only milk production, but also strong hooves. Rumen pH plays a key role in this. Rumen acidosis increases sensitivity to hoof disorders and is therefore an indirect cause of lameness. Lameness is not isolated from nutrition, but is closely linked to ration strategy, transition management and the period around drying off.

Reduced milk yield and impact on somatic cell count

Lameness almost always leads to lower milk yield. Reduced feed intake and stress result in a negative energy balance. This can be associated with metabolic disorders such as ketosis in dairy cows, especially in early lactation. In addition, chronic stress affects the immune system. A weakened immune system increases the risk of mastitis or elevated somatic cell counts. A rising somatic cell count can therefore be indirectly related to hoof disorders or lameness. Within an integrated approach to cow health, hoof health, udder health and nutrition should always be assessed together.

Lameness and reduced fertility

A healthy dairy herd is characterized by stable fertility and clear estrus behavior. Lame cows show less estrus activity. Reduced movement means heat detection systems detect fewer signals, and inseminations are less successful. Pain and negative energy balance also disrupt the hormonal cycle. This prolongs calving intervals and increases costs per liter of milk. Good health monitoring and early detection help identify these problems in time.

Heat stress and increased pressure on hooves

Heat stress in cows also plays a role. During warm periods, cows stand longer to dissipate heat. Reduced lying time means additional pressure on the hooves, increasing the risk of hoof disorders. Heat stress also affects feed intake, milk production and even somatic cell count. Within good health management, attention should therefore be paid to ventilation, cooling and comfortable lying areas.

Lameness as an indicator of overall cow health

Lameness is more than a visible walking problem. It is a key indicator of dairy cow health, cow welfare and the quality of daily farm management. By consistently focusing on health monitoring, early detection, and analysis of data, patterns emerge that are difficult to detect with your eyes. Digital tools such as Lely Horizon combine data on activity, milk production, feed intake and fertility into a single overview. This allows deviations to be identified more quickly and targeted action to be taken in cases of early lameness or other health issues. In this way, data-driven management not only supports hoof health but strengthens overall cow health and contributes to a more sustainable, future-proof dairy herd.

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