Using Flushing to Boost Reproduction Rates in Does

Flushing – it may sound like a plumbing term, but in the world of animal husbandry, it’s a crucial strategy for enhancing reproductive outcomes in does before breeding. This temporary but purposeful elevation in their nutritional intake is a well-established practice among goat breeders and farmers. The primary goal of using flushing to boost reproduction rates in does in through improved ovulation, conception, and embryo implantation rates, ultimately leading to an increased likelihood of successful reproduction. Additionally, flushing has been proven to boost group kidding rates by a remarkable 10-20%. In this blog post, we’ll delve into the details of nutritional flushing, offering insights into when, how, and why it should be incorporated into your breeding program.

A large group of healthy, uniform Kiko doelings in a pen for evaluation by the herd manager.
large group of healthy, uniform Kiko doelings in a pen.

The Timing of Flushing

For optimal results, flushing should be initiated three to four weeks before the planned breeding period and continued for two to four weeks after breeding. This extended timeframe allows for the does to build up their nutritional reserves, ensuring they are in prime reproductive condition.

Nutritional Strategies

The cornerstone of flushing is, of course, nutrition. The type of feed you provide depends on your specific operation, but the key is to ensure that the does receive a boost in energy and nutrients during this critical period. There are several effective ways to achieve this:

  1. High-Quality Hay: Providing high-quality hay is a fundamental part of any flushing protocol. Ensure that the hay is fresh and free from mold or contaminants.
  2. Fresh Pasture: If you have access to fresh pasture, it can be an excellent source of nutrition. However, be mindful that certain legume pastures contain estrogen-like compounds that may interfere with reproductive cycles. In contrast, legume hays are a safer option, free from these compounds.
  3. Grain: For does unaccustomed to high-energy feed, it’s advisable to introduce grain gradually. Start with ¼ pound of grain divided into two daily feedings for several days, then increase to ½ pound, followed by ¾ pound until reaching a maximum of 1 pound of feed daily. This gradual approach helps prevent digestive issues.

Balancing Body Condition

Body Condition Score (BCS) is a critical parameter to monitor during flushing. Aim to maintain a BCS between 3.0 and 3.5 on a scale of 1-5. This range has been identified as the most effective for conception. During the flushing period, strive to increase the BCS by half a score, optimizing the does’ body condition for successful reproduction.

Avoiding Excessive Fat

While increasing body condition is crucial, it’s equally important not to overdo it. An excessive buildup of fat in does can lead to complications such as ketosis and the birth of large, difficult-to-deliver kids. Does with excessive internal fat are particularly prone to ketosis, which can hinder digestion by limiting the rumen’s space.

Customizing Flushing Protocols

Flushing is not a one-size-fits-all strategy. Successful implementation requires customization based on your specific operation and goals. Factors such as the breed, age, and nutritional history of your does should all be considered when designing a flushing protocol.


In the realm of goat breeding and farming, nutritional flushing stands as a valuable tool for improving reproductive outcomes. By carefully timing and managing the nutritional intake of your does, you can significantly enhance conception rates and increase the likelihood of multiple births. Remember, the key to successful flushing lies in a balanced approach – providing the right nutrition at the right time while monitoring body condition to avoid excessive fat accumulation. As you tailor your flushing protocol to your operation’s unique needs, you’ll be well on your way to reaping the benefits of this time-tested strategy.

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