Featured Articles

  • Sep
    10
    Interpretive Summary: In vivo methane abatement by pyromellitic diimide in sheep and redirection of rumen hydrogen by co-administered feed additives


    This study examined the effects of combining four feed additives; pyromellitic diimide (PD), rhubarb extract (RE), monensin (MO), and fumaric acid (FA), on performance and enteric methane emissions in sheep fed pelleted alfalfa diet. Inhibition of methane production in ruminants can increase the accumulation of hydrogen in the rumen.

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  • Sep
    10
    Interpretive Summary: Lauric acid and microencapsulated zinc oxide have divergent effects on weaned pig growth performance, jejunal barrier function, and intestinal transcriptomic profiles


    Weaning is a stressful period for piglets that often reduces growth performance and decreases intestinal health. Feed additives such as microencapsulated zinc oxide and lauric acid can be used to help pigs during weaning, but their effects are not well understood. In this study, pigs were fed diets containing microencapsulated zinc oxide, lauric acid, or a combination for 28 days after weaning.

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  • Sep
    10
    Interpretive Summary: The effects of diet on the physical characteristics of feces and fiber digestibility in healthy horses


    Colic is a broad term for abdominal pain in horses, and the leading cause of morbidity in horses. Diet is recognized as a key risk factor for colic, yet limited research has investigated how diet affects fecal properties and fiber digestibility, factors closely linked to gastrointestinal health.

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  • Sep
    10
    Interpretive Summary: The effects of a commercial essential oil containing resin-derived tricyclic diterpenoids on blood metabolite profile, fecal characteristics, immunomarkers, microbiota, and metabolites of healthy, unchallenged adult Labradors


    Pine trees contain natural compounds that may support dog health due to their anti-bacterial and anti-inflammatory properties. ArgaT is a commercial product made from pine tree extracts that may benefit dogs, but its effects have not been investigated in this species. This study examined whether adding ArgaT to dog food affected overall and gut health in healthy adult dogs.

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  • Sep
    10
    Interpretive Summary: Effects of an antioxidant-enriched kibble on serum oxidative stress and inflammatory biomarkers in healthy adult dogs and cats


    Dietary antioxidants play a pivotal role in maintaining the balance of oxidative stress within the body. We explored the effects of consuming antioxidant-enriched kibbles on serum oxidative stress and inflammatory biomarkers in healthy adult dogs and cats.

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  • Sep
    10
    Interpretive Summary: Modeling the forage–animal interface for estimating the daily gain of stocker cattle grazing bermudagrass


    A mathematical tool was designed for estimating the daily gain of medium- to large-frame stocker cattle grazing bermudagrass pasture in the southeastern US. This tool can predict stocker performance satisfactorily by accounting for daily changes in forage nutritive value, animal nutrient requirements, and herbage intake.

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  • Sep
    03
    Washington Roundup - August 2026


    On September 1st, the House of Representatives voted to approve a Continuing Resolution that will keep the government funded through December 11th. The Senate passed the measure on August 8th just before leaving for recess. The stopgap measure pushes further funding negotiations past the midterm elections and avoids a potential shutdown at the end of the fiscal year.

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  • Aug
    27
    Interpretive Summary: A systematic mapping review of cattle welfare research during road transportation (2015–2025)


    Transportation is a stressful event for cattle during their lifetime, and there are many different factors associated with transportation that can impact cattle welfare. This study systematically mapped road transportation research in cattle from 2015 to 2025. One hundred twenty-five studies were evaluated.

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  • Aug
    27
    Interpretive Summary: Influence of host genetics on the functional composition of the rumen metagenome in beef cattle


    The rumen contains microorganisms that break down plant matter and supply nutrients to the host animal. Each microorganism has its own set of genes with specific functions. All the genetic information of these rumen microorganisms is collectively known as the rumen metagenome.

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  • Aug
    27
    Interpretive Summary: Identifying selection signatures associated with production traits in Matou goats using whole-genome sequencing


    The Matou goat is a valuable local breed in China, known for its good meat and high reproductive rate. However, its population and quality have been declining, and we lack a deep understanding of its genetic characteristics. To help protect and improve this breed, we studied the genetic makeup of 128 Matou goats by analyzing their entire genome.

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  • Aug
    27
    Interpretive Summary: Disentangling mature cow weight and body condition score: a comparative single-step GWAS of phenotypic pre-adjustment vs. recursive modeling


    Mature cow weight (MWT) is an important trait in cattle production because it influences feed requirements and overall efficiency. However, MWT is closely related to body condition score (BCS), which reflects a cow’s nutritional status and energy reserves. Because of this relationship, how BCS is accounted for can affect which animals are selected for breeding.

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  • Aug
    27
    Interpretive Summary: Fifty years of progress for beef cattle production in the United States


    The past fifty years have seen many changes leading to improved productivity and efficiency of beef cattle production in the United States. Integrating and quantifying the impact of all these changes is challenging. By modeling the life cycles of cattle production in 2022 and the early 1970s, improvements were determined for beef production, resources used and other environmental impacts.

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  • Aug
    27
    Interpretive Summary: Breed-specific enteric methane emission factor assessment in Italian dairy cattle leveraging DHI and primary ration data


    Methane is a strong greenhouse gas, and dairy cows are a significant source of methane in the agricultural sector. This study evaluated how the use of farm-specific dietary information, compared with standard assumptions, influences estimate of enteric methane emissions across different dairy and double-purpose cow breeds in Italian farms. Data from 138 farms rearing two Italian dairy breeds (Holstein, Brown Swiss) and a double-purpose breed (Italian Red Pied) were analyzed.

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  • Aug
    27
    Interpretive Summary: Dietary triple-strain Bacillus-based probiotic improves growth performance by modulating intestinal barrier function and gut microbiota in weaned pigs


    Weaning stress disrupts intestinal development and microbial homeostasis in piglets, resulting in diarrhea and impaired growth performance. This study evaluated the effects of a dietary triple-strain Bacillus-based probiotic (BP) on growth performance and intestinal health in weaned pigs.

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  • Aug
    20
    Interpretive Summary: Mouse models of Zika virus infection-induced placenta and fetal brain damage


    Zika virus (ZIKV) can spread from one person to another through a mosquito bite. This exposure does not cause any major issues for a healthy person. However, pregnant mothers infected with ZIKV are highly associated with delivering infants with a smaller head size due to fetal brain injury.

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  • Aug
    20
    Interpretive Summary: Lambs from ewes fed a poor-quality diet with realimentation exhibit increased incidence of hypothermia and divergent pre-weaning growth


    Sheep in extensive grazing systems often face periods of poor-quality forage, particularly during winter, which can impede ewe nutrition during pregnancy. Nutrient restriction during mid-to-late gestation is known to negatively impact ewe health and lamb development.

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  • Aug
    20
    Interpretive Summary: Ruminal 5-hydroxytryptophan increases serum serotonin and peripheral vasodilation in growing beef cattle


    Serotonin is a neurotransmitter that helps regulate many body functions, including mood and appetite, metabolism, and blood flow. Serotonin is produced from the amino acid tryptophan, but this pathway is limited, only a small portion of tryptophan normally enters. One way to increase serotonin production is by providing 5-hydroxytryptophan (5-HTP), the direct precursor to serotonin.

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  • Aug
    20
    Interpretive Summary: Exploring the interaction of vitamin A and zinc in finishing cattle


    This eighty-four–day study explored the interaction of vitamin A and zinc on growth performance, carcass merit, and trace mineral metabolism in Angus-crossbred steers. Previous research has indicated removal of vitamin A from finishing diets improves carcass merit.

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  • Aug
    20
    Interpretive Summary: The effects of feed intake and fiber type on apparent ileal and total tract digestibility and hindgut disappearance of energy and nutrients in growing pigs


    Dietary fiber is partitioned into soluble and insoluble fractions. Corn cobs consist mostly of insoluble dietary fiber whereas sugar beet pulp contains a substantial amount of soluble dietary fiber in addition to insoluble fiber. The objective of this study was to determine the effects of feed intake and fiber type on nutrient digestibility in pigs.

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  • Aug
    20
    Interpretive Summary: Effects of dietary medium-chain fatty acid supplementation levels on growth performance, fecal score, energy, antioxidant, inflammatory status, and fecal metabolites of nursery pigs fed high-protein diets


    Medium-chain fatty acids (MCFA) are known to improve postweaning growth performance in pigs by supporting energy balance and reducing postweaning diarrhea. This study evaluated the effect of increasing dietary MCFA levels up to 1.0%, replacing soybean oil, on growth performance, fecal score, energy status, gut health, and immune responses in nursery pigs fed high-protein diets (24% crude protein) for 35 d.

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