Featured Articles

  • Jul
    16
    Interpretive Summary: Voluntary intake of dry matter and water of sheep fed low dry matter forages and consequences for nitrogen excretion


    There is increasing interest in reducing environmental impacts of grazing ruminants. Recently, the use of high-water-content forages to produce dilute urine, thereby mitigating nitrogen concentrations in excreta and reducing impacts on groundwater, has been encouraged in temperate grazing systems.

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  • Jul
    16
    Interpretive Summary: Effects of dietary octapeptin supplementation on growth performance, intestinal morphology, immune function, and serum metabolism of weaned piglets


    Early weaning phase is the most critical challenge in piglet development, as the associated stress often impairs production performance. Therefore, mitigating this stress and enhancing growth are the primary goals immediately after weaning.

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  • Jul
    16
    Interpretive Summary: Water intake and consumption behavior of colony and privately-owned healthy domestic cats fed 100% dry, 50% dry and 50% wet, and 100% wet diets: a comparison of research and home environments


    Maintaining adequate hydration is a concern for cat owners and veterinarians, given that many cats are fed low-moisture dry diets and that dietary moisture contributes to their hydration. In this study, we recorded the water intake and drinking behavior of healthy colony and client-owned cats fed three diets with different moisture contents (100% dry, 50% dry and 50% wet, and 100% wet).

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  • Jul
    16
    Interpretive Summary: Genetic analysis of High Immune Response technology and relationships with disease resilience in pigs


    Disease resilience is the ability of an animal to maintain performance or to recover quickly when exposed to disease and is a viable target for pig breeding programs to improve productivity and animal welfare and reduce the use of antibiotics. However, disease resilience is difficult to select for in pig nucleus breeding programs and requires indicator traits that can be measured on animals without exposure to disease.

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  • Jul
    16
    Interpretive Summary: Genome-wide association analyses for growth, carcass composition, and meat quality traits of Iberian pigs fattened in free open air


    Growth performance, carcass composition, and meat quality are key traits in the Iberian pig industry. Genomic tools enable a more comprehensive and accurate identification of genetic markers to improve selection for these traits. In this study, a genome-wide association analysis was performed in over 500 Iberian pigs, identifying 165 genetic markers associated with loin and ham yield, meat tenderness, and fatty acid composition.

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  • Jul
    16
    Interpretive Summary: Predicting dry matter intake in gestating ewes using greenhouse gas measurements from portable accumulation chambers


    How much grass or silage a sheep eats each day is important for both farm profitability and climate impact, but measuring individual feed intake is expensive and time-consuming. In this study, we tested whether we can “read” an ewe’s daily feed intake from a short-term measurement of the gases she breathes out.

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  • Jul
    16
    Interpretive Summary: Genetic heterogeneity of residual variance for growth traits in American angus Cattle


    Modern beef production increasingly rewards animals that grow at a consistent and predictable rate. In this study, we evaluated whether growth variability in American Angus cattle has a genetic component and whether it could be considered in breeding programs.

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  • Jul
    09
    Interpretive Summary: Ruminal biohydrogenation and microbial lipids in dairy cows supplemented with fractionated palm oil or Hermetia illucens oil


    The oil extracted from black soldier fly (Hermetia illucens) larvae has recently emerged as a sustainable and innovative feed ingredient. Conventional fats are often included in the diets of dairy cows, but some of them are associated with negative environmental impact, such as those derived from oil palm cultivation.

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  • Jul
    09
    Interpretive Summary: Effects of dietary starch concentration and feeding management regimen on bacterial pathogens in liver abscesses and ruminal and colonic epithelial tissues in feedlot steers


    Feedlot cattle are fed high-grain diets and typically experience fluctuations in daily feed intake that may increase liver abscess prevalence. Liver abscesses result from bacterial infection, but the interaction between feedlot management practices and bacterial prevalence and concentrations in the liver and the gastrointestinal tract are poorly understood.

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  • Jul
    09
    Interpretive Summary: Effects of a second iron injection and sire line on growth performance, hemoglobin levels, antioxidative status, and whole-body iron retention in piglets


    Iron deficiency is one of the most common issues in newborn piglets and can impair growth and overall health before and after weaning. This study evaluated how different iron injection frequencies (no, one, or two injections of 200 mg iron) during the suckling period influenced pre- and post-weaning growth, hemoglobin levels, antioxidant status, and whole-body iron retention in piglets from two sire lines.

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  • Jul
    09
    Interpretive Summary: Carnosine enhances actomyosin-ATPase activity under acidic conditions: the role of carnosine in a rigor mortis


    This study reexamines the mechanism of rigor mortis, a characteristic phenomenon observed during postmortem changes in skeletal muscle of livestock and poultry, by focusing on the influence of imidazole dipeptides, which are abundantly present in skeletal muscle tissue. Previous studies on rigor mortis have largely overlooked the presence of low-molecular-weight compounds other than calcium and magnesium.

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  • Jul
    09
    Interpretive Summary: Adult male cats consuming diets ranging in crude protein from 85% to 160% of AAFCO recommendations have different respiratory quotients, energy expenditure, gross, digestible, metabolizable, and net energy, but not physical...


    The goal of this research study was to quantify net energy (NE) content of diets ranging in crude protein (CP) content from 85% and 160% of American Association of Feed Control Officials (AAFCO) model guidelines while simultaneously decreasing nitrogen-free extract (NFE) in diets fed to adult, male cats.

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  • Jul
    09
    Interpretive Summary: Tannin supplementation modulates the grazing behavior and metabolomic profiles of beef cattle


    Cattle grazing grass monocultures often face declining forage quality in mid to late summer, which can reduce animal performance and lead to uneven grazing near water and feeding areas. This study tested whether adding a moderate amount of a commercial tannin extract to a daily protein supplement could change how beef cows forage across the landscape and how their metabolism responds while grazing smooth bromegrass pastures.

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  • Jul
    02
    Washington Roundup - June 2026


    One June 23, the U.S. Senate Committee on Agriculture, Nutrition, and Forestry released legislative text of the Agricultural Act of 2026, also known as Farm Bill 2.0. The move comes after the House of Representatives approved its version of Farm Bill 2.0, entitled the Farm, Food, and National Security Act of 2026, which passed the House on April 30th.

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  • Jun
    25
    Interpretive Summary: Optimization of fecal near infrared spectroscopy for predicting organic matter digestibility in cows using local algorithms


    Determining the digestibility of diets is crucial to develop efficient and ruminant sustainable production systems. Nevertheless, the methods currently available are not suitable for rapid and effective determination or estimation of digestibility. In recent years, models using near-infrared (NIR) spectroscopy have been developed to estimate digestibility directly from samples of feed or feces.

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  • Jun
    25
    Interpretive Summary: Effects of Bacillus subtilis and Clostridium beijerinckii on digestibility and ruminal degradability in Holstein cows


    Nutrient restriction due to limited dry matter intake during early lactation in dairy cows may be a limiting factor for farm profitability. Improvement of feed digestibility through the use of direct-fed microbials may help alleviate challenges faced during this period.

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  • Jun
    25
    Interpretive Summary: Effects of a partial or total mixed ration silage based on sugar beet tops on the rumen and blood variables, performance, and carcass quality of fattening lambs


    Feeding a dry TMR was compared with partially (PHF) or totally (TLF) ensiled mixed rations based on sugar beet tops, focusing on ruminal and blood variables, estimated microbial protein synthesis (EMPS), nutrient digestibility, productive performance, carcass quality, and antioxidant status in fattening Ghezel lambs.

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  • Jun
    25
    Interpretive Summary: Effect of steam-pelleting or extrusion on nutrient digestibility of ground barley or faba bean in growing pigs


    Plant-based feedstuffs may have limits in nutrient digestibility and nutritional value for pigs that might be ameliorated using heat processing technologies. The objective of the present study was to evaluate the effect of steam-pelleting or extrusion on the digestibility of starch, protein, amino acids, and energy of barley or faba bean fed to ileal-cannulated growing pigs.

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  • Jun
    25
    Interpretive Summary: A systematic review of the efficacy of complementary colostrum, milk, and oral nutritional and dietary solutions on the health, growth, and gut health of suckling piglets


    Pre-weaning mortality in piglets remains a major concern in modern pig production. This high mortality rate is partly a consequence of genetic selection for larger litters, which often exceeds the sow’s ability to produce enough colostrum and milk for all her offspring. To address this issue, researchers have explored various nutritional supplements designed to mimic the biological and immunological properties of colostrum and milk, as well as specific additives that support newborn piglets.

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  • Jun
    25
    Interpretive Summary: Does quantity equal quality? Source of protein influences American dog owner purchasing decisions more than the quantity of protein in the absence of marketing claims


    Protein-related claims like “high protein” strongly influence dog food purchasing decisions, but these claims are not standardized and do not consider protein quality (PQ). Limited data exists on dog owners’ understanding of PQ and whether protein source or quantity plays a greater role in purchasing decisions.

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