Lambing Interventions

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We all love finding new lambs all dried off and nursing, but sometimes ewes need a little help to get there. In general, less intervention is better and if ewes are not having trouble, they will do better lambing and bonding with their lambs if you do not disturb them while in labor. Know what to look for as signs of distress and be sure to intervene sooner rather than later if it is needed. Before lambing starts, make sure that you have some way lined up to be able to catch and restrain a ewe in distress. My favorite…

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Winter Grazing for Livestock: Enhancing Animal Performance, Health, and Farm Profitability

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Winter grazing for livestock offers numerous benefits that extend beyond traditional feeding practices. This article explores the advantages of winter grazing, including improved animal performance, enhanced animal health, reduced labor for farmers, and ultimately, improved profitability. Improved Animal Performance: Winter grazing allows animals to continue their natural behaviors which limits exposure to mud and pathogens that often occur at hay feeding stations. Research by Johnson et al. (2018, "Effects of Winter Grazing System on Cow Performance and Pasture Productivity") demonstrates that properly managed winter grazing can maintain or even enhance body condition in livestock leading to improved reproductive performance and…

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Meningeal Worm

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Meningeal worm (Parelaphostrongylus tenuis), also known as deer worm or brain worm, is a parasite of white tail deer that typically causes disease in sheep in the late summer and fall. In deer, the adult P. tenuis worms live on the membranes covering their brains, the meninges. In most deer there is no adverse effect from the parasites. Female worms lay eggs on the meningeal membranes, they hatch, the larvae migrate into the bloodstream and travel to the lungs. Here larvae are coughed up and swallowed, passing through the intestinal tract and larvae are excreted with the deer manure. These…

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Plant Toxicity in Sheep

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Like many sheep articles, personal experience was the inspiration for this one. And like most sheep problems, the exact cause isn't certain, but the pattern of symptoms - photosensitivity and the sudden death of a few 7-month-old ram lambs - led to a suspected diagnosis of plant toxicity and photosensitivity exacerbated by a brutally hot summer. Photosensitization is an inflammation of the skin and is caused by either primary sources (e.g., direct contact with photosensitizing plants) or secondary causes from liver damage caused by an accumulation of toxins. Primary plant toxicity is the most common cause in sheep and occurs…

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Evaluating your mineral program

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We all know that our sheep need minerals, but how do we know that we are not over- or under-supplying their needs? Mineral deficiencies can lead to disease, but too much can lead to toxicity and even death. Minerals interact with each other; high levels of molybdenum can suppress copper levels and cause copper deficiency but it is also used to protect against copper toxicity in instances where high copper levels are present. The whole diet needs to be evaluated, not just the minerals you are offering. Minerals in the soil determine what minerals are available in the forages grown…

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Scours: Causes, Treatment, and Prevention

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Scours or diarrhea is something that most of us probably see in our flocks over the course of a year. Animals scour whenever there is a disturbance in the normal processes that regulate how much fluid is excreted in their manure. Scours is a symptom, sometimes due to a serious disease that requires prompt treatment, but often diet induced and transient, requiring only tincture of time to resolve. Diet plays a large role in manure consistency; expect looser manure for a few days whenever there is an increase in protein and/or energy or a decrease in fiber in their diets.…

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It All Starts in the Rumen

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As prey animals, sheep evolved with the ability to harvest their food quickly with very little chewing, then retire to a safe place to further process their meal. Sheep are unable to directly digest the cellulose in forages and must rely on billions of microorganisms in the rumen (bacteria, protozoa and fungi) for fermentation and digestion. The byproducts of these microbes provide the sheep with needed nutrients (protein, energy, B vitamins and vitamin K). The health of the entire animal is reliant on the health of the rumen microbes. The rumen is often referred to as a large fermentation vat…

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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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Signs and Symptoms: What are your sheep trying to tell you?

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We've all experienced a sick sheep, or at least one that doesn't look quite right, but how do we distinguish a serious illness from one that is mild, or simply normal behavior? While your veterinarian should always be your primary source of medical advice, it's still important that shepherds have the ability to accurately identify and describe any signs and symptoms your animal may be experiencing. When calling your vet, this information will help him/her determine whether a farm visit is necessary or if a plan of care can be initiated by phone. It will also assist you in researching…

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Sheep GEMS Update

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Sheep GEMS is roaring ahead, with the strong commitment by Katahdin breeders particularly welcomed. With the help of John Bare, Michelle Canfield, Tom Hodgman, and Jim Morgan—members of a Project Advisory Group—twenty-six Katahdin flocks have voiced their interest to participate in this project. A key element of Sheep GEMS is collecting performance records in NSIP-member flocks that reflect the productive efficiency, robustness, and climatic resilience of their sheep. These include udder health, lamb survival, ewe longevity, and parasite resistance. Based on the outcome of a pilot study underway, we also are developing a measure of coat shedding in Katahdins that…

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