Determining the teat size of a cow is an important aspect of managing dairy cattle, especially when selecting appropriate milking equipment. Here’s a guide on how to determine the teat size of a cow:

The Significance of Udder Size in Dairy Cattle:

The udder is the primary organ responsible for milk production in dairy cows. The size and capacity of the udder directly influence the cow’s ability to produce and store milk. A well-developed and properly functioning udder can result in higher milk yields and better overall productivity.

Visual Inspection:
Start by visually inspecting the cow’s udder and teats. Stand back and observe the size, shape, and symmetry of the teats. Look for any obvious abnormalities or variations in size between teats.

Length Measurement:
Measure the length of each teat individually. Use a measuring tape or ruler to determine the length from the base of the teat (where it meets the udder) to the tip of the teat. Measure each teat separately for accuracy.

Diameter Measurement:

Measure the diameter or thickness of the teats. Use a caliper or specialized teat measurement tool to assess the thickness of each teat. Measure the widest part of the teat, typically around the middle section. There’s also a easier method, try to hold the Udder with your thumb & Index finger, making it a circle. Measure the diameter & that’s your teat size of your cow.

Measuring Udder Depth:
Measuring the udder depth provides valuable information about a cow’s milk-holding capacity. Using a measuring tape or calibrated stick, measure the distance from the lowest point of the udder to the ground. A deeper udder generally indicates greater milk production potential.

Evaluate the consistency of teat size within the udder. Ideally, the teats should be uniform in size across all quarters of the udder. Consistency is important for proper milking efficiency and equipment attachment.

Spacing and Placement:
Assess the spacing and placement of the teats. They should be evenly spaced and properly aligned for efficient milking. The distance between the teats should allow for easy attachment of milking equipment.

Functional Considerations:
Apart from size, consider the functional aspects of the teats. Look for teats that are well-formed, free from deformities, and have good sphincter muscle control for effective milk letdown and machine attachment.

It is important to note that teat size alone does not determine milk production potential. Other factors, such as genetics, breed, udder capacity, and overall cow health, also play significant roles. Additionally, the size and shape of teats may change over a cow’s lactation cycle.

Consulting with experienced professionals, such as dairy veterinarians or breed association experts, can provide further guidance and recommendations specific to your dairy herd. They can help assess teat size in relation to milking equipment and advise on appropriate strategies for optimal milk production and udder health.


Determining the udder size of your cow is a valuable skill that aids in managing dairy herds for optimal productivity. By visually assessing udder size, measuring udder depth, evaluating rear udder height and width, and considering teat size and placement, you can gain insights into your cow’s milk production potential. Understanding udder size helps in selecting appropriate breeding stock, optimizing milking equipment, and making informed management decisions. Regular udder evaluation and monitoring are vital for maintaining udder health, milk quality, and overall herd performance. With this knowledge, you can enhance your dairy farming practices and maximize the productivity of your cows.

The most important thing to consider is the width of your cow. The milk production directly depends on the width of teat & how you install the milking equipment. For instance, While you are milking the cow, the liners should be half way of the teat & not all the way up touching the base of the udder bag. Here are some of the liners you can choose form Mitty Supply.

For Small Teat size 22mm:- Click Here

For Medium Teat Size 24mm:- Click Here

For Large Teat Size 26mm:-  Click Here

It is important to note that udder size alone does not determine a cow’s milk production potential. Other factors, such as genetics, breed, nutrition, and overall health, also play significant roles. Therefore, it is advisable to consult with experienced professionals, such as dairy veterinarians or breed association experts, who can provide more accurate assessments and guidance specific to your dairy herd. Mitty Supply is always happy to consult with you before buying any products from us. We at Mitty supply have a variety of products suitable for you like Liners(Liner’s page link to be inserted here), Lids & Gaskets(link), Shells(link), Pulsators(link), Hoses(link), Milking Claws(link), Air tubes(links), Buckets(link), Vacuum Pumps(link), Covers(link), Motors(link), Cleaners(link), etc to make your daily life hassle free.