Stop Making Excuses

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When the breeding season starts, there is an implied contract between shepherd and ewe. Your commitment to keep her around for another production cycle means her commitment to return her annual costs plus some in lamb production. To do this, she must get pregnant, lamb, and wean a litter that is a relatively high percentage of her own body weight. Getting pregnant is the first step. Ewes that breed and conceive early in the season have a greater chance of weaning a heavier litter. They also contribute to a shorter lambing season, improve lamb crop uniformity, and reduce shepherd fatigue.…

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Blending Technology & Tradition to Achieve Breeding Goals

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We talk a lot about tradition in the American sheep industry. Traditions aren’t stagnant, they get modified from one generation to the next as new information and insights are gained. Nearly everything in modern sheep production – be that fences, milk replacer or RFID readers – was at one time a state-of-the-art technology. Whether we choose to adopt a new technology is dependent on economics and those intangibles that define our unique perspectives for raising sheep in the first place.From the dawn of sheep domestication until the last 50 years or so, the only available technologies to select replacement animals…

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A Tribute to Dr. Charles Parker, Mentor and Friend

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Dr. Charles Parker (1935-2024) was a sheep specialist, researcher, industry leader and experienced advisor to many of us in the Katahdin breed. As an early supporter of the breed, Charles felt that Katahdins could and should be the Complete Meat Sheep, genetically balanced for reproductive and growth efficiency and easily adapted to diverse production systems. Following his death in July 2024 we decided to compile some of his advice and guidance over the years to share with others. In collaboration with the Piel Farm, Heifer Project and some of the early Katahdin breeders, Charles was instrumental in the development of…

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Building the foundations for genomic selection in U.S. sheep

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Sheep GEMS News Brief 4 – mid-August 2024 The Sheep GEMS project, together with NSIP members and other sheep industry organizations, have been working to create the building blocks for the implementation of genomic selection in the U.S. sheep industry. In this second article of the Sheep GEMS update related to genomic predictions, we describe the practical aspects for application of genomic selection in our industry. Genomic selection is the process by which genomically-enhanced estimated breeding values (GEBV) are used for selection of individuals to become the parents of the next generation. The first question one may ask is “How…

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Three Common Genetic Defects to Look for when Buying or Selling Sheep

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As the 4th Annual EAPK sale approaches, we’re expecting some very high quality Katahdins available for purchase in our unique sale format.  This hybrid sale gives eligible consignors the option to either physically bring their animals to the EAPK Symposium & Sale or consign them to the online sale only.  Buyers attending the EAPK Symposium will have an advantage in that they will have the opportunity to talk to the breeder and inspect the animals they’re interested in purchasing.  Because some breeders may be unable to attend, they will still have the option of consigning animals to the online auction…

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The Nuts and Bolts of EBVs

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EBVs are tools that producers can use to select breeding animals that will help them meet flock goals for specific traits such as growth, milk, reproduction, parasite resistance and carcass quality. It is important to understand that selecting for extremes in one trait will often put negative selection pressure on other traits of interest. Often, animals with extremely high EBVs in certain traits will require additional nutritional support or better management to perform successfully at that level. In addition, some traits are antagonistic to other traits, meaning that if you select strongly for one trait you may be inadvertently reversing…

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Buying Parasite Resistance: considerations for greater success

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Often producers interested in adding genetics for parasite resistance to their flock are faced with deciphering the fecal egg count (FEC) EBVs listed on a stall card or catalog at an auction (online or in person). Is that enough information to identify a parasite resistant animal? In my experience, no. Estimated Breeding Values (EBVs) provide a wonderful tool to predict animal performance, but when it comes to parasite resistance, the stated EBV often doesn't provide the whole answer. More than other traits, FEC EBVs can be subject to some pretty big changes over time. Partly that's because there is such…

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Understanding “Number of Lambs Weaned” (NLW) Estimated Breeding Values

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We've been members of NSIP since 2006 and I must confess that I've never really understood what all went into the calculation of "Number of Lambs Weaned", let alone Genomically-enhanced Estimated Breeding Values (GEBV) for NLW. Seems most of my ewes had NLW GEBV that were about the same as their NLB GEBV, with a few exceptions. Some were a little lower and some were a little higher, and since they are correlated, I didn't pay a whole lot of attention to these slight differences until I bought a ram last year with a NLB of 0.04 and a NLW…

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Impact of NSIP Status on Ram Value

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In 2022, the Southwest Virginia Agricultural Research and Extension Center hosted its 10th ram test and sale. Over the years, the program has developed a strong reputation for the development and identification of superior rams for growth and parasite resistance in a forage-based environment. Historically, the test has included rams from NSIP flocks and some rams from flocks not enrolled in NSIP (non-NSIP). The 2022 test and sale data were analyzed to explore the impact of NSIP enrollment on ram performance and value in the program. The 2022 test included 119 rams from 10 states. Rams were delivered in late…

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Profile: Dr. Scott Bowdridge

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This past summer, Dr. Scott Bowdridge, Associate Professor of Food Animal Production, West Virginia University, opened our minds to his exciting research identifying immune mechanisms in sheep to eliminate parasitic infections. At the 2022 Eastern Alliance for Production Katahdins (EAPK) symposium he discussed his data that links low FEC EBVs (Fecal Egg Count Estimated Breeding Values) with an overall increase in disease resistance. Dr. Bowdridge has diverse experiences working as a sheep producer, geneticist and now as an immunologist. Through the years, he has developed many relationships with other scientists in the field. Together their groundbreaking research is advancing the…

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