Dynamics and Strategies for Culling in a Dairy Herd

When the retention-pay off value is positive, it means it is predicted that the cow will produce more in the present time frame than her replacement would, so ...

Theoretical aspects of culling and selection in dairy cattle

A theoretical analysis is made of the optimal culling or selection policy among cows to maximize mean yield in herds which do not breed bulls.

Management of cull dairy cows—Consensus of an expert ...

The management of cull dairy cows (i.e., cows re- moved from the milking herd and sent for slaughter or salvage) is a significant animal welfare challenge that.

Dairy Cattle Culling Patterns, Explanations, and Implications

Understanding culling rates is important for managing dairy production response and profitability. When dairy farm managers cull cattle too often or too quickly ...

Dairy Cattle Culling Falls Behind Historical Trends Amidst Beef ...

Long-term planning is paramount in addressing replacement shortages. Developing a comprehensive breeding and culling strategy that aligns with ...

Dairy Cow Culling Decision. 1. Techniques for Evaluating the Effect ...

A technique is described for culling cows on a combination of screening the entire herd on short-term income through next calving interval and then picking ...

Invited Review: The welfare of cull dairy cows

The literature discussed below indicates that some culling decisions are made at a herd level for efficiency reasons, and some are required for individual cows ...

Dairy cow culling strategies: making economical culling decisions

Culling strategies are further influenced by short-term fluctuations in cow numbers as well as by planned herd expansion. Changes in herd size affect the ...

Strategies for time of culling in control of paratuberculosis in dairy ...

Effect of time for culling cows infected with Mycobacterium avium ssp. paratuberculosis on prevalence and profitability was identified through simulations.

Investigation of Reasons for Culling in Chungcheong Dairy Herds

Thus, strategies to reduce involuntary culling in dairy herds might be needed ... Dynamics of culling risk with disposal codes reported by Dairy Herd ...

Culling reasons and risk factors in Estonian dairy cows

Milk yield reaches the highest level after the third lactation [11], meaning that culling young cows is especially undesirable. Importantly, ...

Culling and mortality of dairy cows: why it happens and how it can ...

The most common reasons for culling at the cow-level include old age, diseases (udder and legs), metabolic diseases or disorders, respiratory ...

An illustration of the dynamics of culling within a dairy herd based on...

The economic losses due to culling within dairy herds vary considerably from herd to herd which may appear to have the same overall culling rate.

Culling and mortality of dairy cows: why it ... - F1000Research

8–10 Culling is also regarded as a damage control and preventative strategy in which the farmer eliminates cows that carry undesired traits and ...

Dynamics of culling risk with disposal codes reported by Dairy Herd ...

(2010) Pinedo et al. Journal of Dairy Science. The objective was to describe the dynamics of culling risk with disposal codes for Holstein dairy cows ...

Culling Strategies of Dairy Cows in Eastern Province of Saudi Ara

Age, low milk yield, mastitis, poor conformation, and reproductive tract abnormalities were the least likely reasons (1.64-12.11%) for culling. The common ...

What is the best replacement rate for your dairy? | UMN Extension

A good goal is for less than 8 percent of cows to leave less than 60 days in milk. Evaluate forced cull rate. If forced culling is high due to ...

Descriptive study for culling and mortality in five high-producing ...

Understanding cow elimination better would help to formulate specific prevention measures and improve the efficiency of milk production in dairy ...

Reasons for Culling Dairy Cows - Partners In Reproduction

Culling rates in dairy herds vary from 20-35% per year1. The most common risks for culling are: · When deciding to cull an animal for reproduction, dairy ...

Interactions between optimal culling and insemination policies and ...

... dairy herds using dynamic programming. The ... Interactions between optimal culling and insemination policies and feeding strategies in dairy herds ...