Featured Articles

  • Mar
    23
    Interpretive Summary: Predicting the metabolizable energy and metabolizability of gross energy of conventional feedstuffs for Muscovy duck using in vitro digestion method


    100x100 ASAS Blog Template - 2023-03-22T233003.539
    Metabolizable energy (ME) is one of the major factors in formulating diets for ducks and most studies on the ME values of ingredients have been conducted on Peking ducks, with limited research on Muscovy ducks.

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  • Mar
    23
    Interpretive Summary: The development of a semisynthetic diet deficient in methionine for adult cats for controlled feline nutrition studies: effects on acceptability, preference, and behavior responses


    100x100 ASAS Blog Template - 2023-03-22T234032.500
    Previous studies that determined the requirement of amino acids (AA) in cats utilized experimental diets that do not represent commercial cat diets available in the market. Using this type of diets can present a challenge when applying AA requirements to commercial diet production.

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  • Mar
    23
    Interpretive Summary: Effects of a Saccharomyces cerevisiae fermentation product-supplemented diet on fecal characteristics, oxidative stress, and blood gene expression of adult dogs undergoing transport stress


    100x100 ASAS Blog Template - 2023-03-22T234855.538
    Saccharomyces cerevisiae fermentation product (SCFP) is a yeast product containing bioactive fermentation metabolites, residual yeast cells, and yeast cell wall fragments. In this study, SCFP was investigated for its impacts on fecal characteristics and oxidative stress of dogs undergoing transport stress.

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  • Mar
    16
    Interpretive Summary: Performance and milk fatty acid profile of beef cows with a different energy status with short nutrient restriction and refeeding


    100x100 ASAS Blog Template - 2023-03-16T100348.554
    Lactating cows can undergo periods with a negative energy balance due to feed shortages, which trigger metabolic adaptations to support cow maintenance and milk yield. We explored beef cows’ response to a short feed restriction (4 d, 55% of their energy and protein requirements) and subsequent refeeding (4 d, 100% of their energy and protein requirements) in the second month of lactation.

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  • Mar
    16
    Interpretive Summary: Effects of replacing inorganic salts of trace minerals with organic trace minerals in the pre- and postpartum diets on mineral status, antioxidant biomarkers, and health of dairy cows


    100x100 ASAS Blog Template - 2023-03-16T122044.118
    Trace minerals (TM) are important for oxidative balance and immunity of cows. Different forms of TM are available for dietary supplementation of dairy cows. We tested whether replacing inorganic salts of TM by organic sources of TM in both pre- and postpartum diets improve TM concentration in body fluids and liver, antioxidant capacity in blood, and postpartum health of dairy cows.

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  • Mar
    16
    Interpretive Summary: Development of a dynamic model for prediction of energy in milk protein, lactose, fat, and enteric methane emissions in goats based on energy balance and indirect calorimetry studies


    100x100 ASAS Blog Template - 2023-03-16T123535.485
    The present model using mixed diets with different by-products to obtain macronutrient balance, methane emission, and milk performance during mid lactation could be an interesting tool to help farmers, without the costs of running animal experiments.

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  • Mar
    16
    Interpretive Summary: Modeling net energy partition patterns of growing–finishing pigs using nonlinear regression and artificial neural networks


    100x100 ASAS Blog Template - 2023-03-16T124855.383
    Net energy (NE) is the most refined energy system in animal nutrition, and understanding the NE partition patterns of pigs can help us to develop suitable feeding strategies to improve the growth performance and carcass traits of pigs. However, it is time-consuming, laborious, and expensive to directly measure the NE; thus, establishing a predicted model is more efficient.

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  • Mar
    16
    Interpretive Summary: Impact of ileal indigestible protein on fecal nitrogen excretion and fecal microbiota may be greater compared with total protein concentration of diets in growing pigs


    100x100 ASAS Blog Template - 2023-03-16T125731.350
    Dietary protein concentration has been gradually reduced because reductions in protein concentration in swine diets are known to be beneficial in terms of feed costs, nitrogen excretion, and intestinal microbiota. However, ileal indigestible protein concentration may be more influential in those variables of pigs compared with total protein concentration in diets because ileal indigestible protein considers both protein concentration and digestibility of diets.

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  • Mar
    16
    Interpretive Summary: Design and characterization of a high-resolution multiple-SNP capture array by target sequencing for sheep


    100x100 ASAS Blog Template - 2023-03-16T130719.385
    Large-scale genotyping platforms are valuable tools for animal selection and breeding programs. The bead chip has been widely used in both research and commercial applications for a long time. A highly efficient and economical genotyping platform has been developed recently.

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  • Mar
    16
    Interpretive Summary: Signatures of selection in indigenous Chinese cattle genomes reveal adaptive genes and genetic variations to cold climate


    100x100 ASAS Blog Template - 2023-03-16T131746.407
    Cold climates can affect cattle performance, survival, and health. Local cattle breeds have been adapted to the local environments including extremely cold temperatures after a long period of natural and artificial selection.

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  • Mar
    09
    Interpretive Summary: Productive and physiological responses of feedlot cattle receiving different sources of Ca salts of fatty acids in the finishing diet


    100x100 ASAS Blog Template - 2023-03-08T220713.121
    Supplemental fat has been provided to feedlot cattle to increase energy density of their diets, and may yield nutraceutical advantages if includes polyunsaturated fatty acids (FA). Alternatively, carcass quality can be improved when the fat supplement is based on saturated and monounsaturated FA.

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  • Mar
    09
    Interpretive Summary: Evaluation of carinata meal or cottonseed meal as protein sources in silage-based diets on behavior, nutrient digestibility, and performance in backgrounding beef heifers


    100x100 ASAS Blog Template - 2023-03-08T222147.391
    Increased atmospheric CO2, rising temperatures, and altered patterns of precipitation can limit the production of certain crops commonly used in agriculture, increasing risk, cost, and availability of feedstuffs. The search for alternative plants that could thrive in these changing scenarios is necessary to provide producers with a broader array of options to feed cattle.

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  • Mar
    09
    Interpretive Summary: Changes in milk fat globule physical properties and milk fatty acid composition throughout the lactation cycle of Laoshan goat


    100x100 ASAS Blog Template - 2023-03-08T224902.309
    The composition and physical properties of milk fat affect the quality and sensory properties of dairy products. However, changes in the physical properties of milk fat globules (MFGs) and profiles of milk fatty acids (FAs) of goat milk throughout the lactation period remain unclear.

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  • Mar
    09
    Interpretive Summary: Effect of a biosynthetic bacterial 6-phytase on the digestibility of phosphorus and phytate in midlactating dairy cows


    100x100 ASAS Blog Template - 2023-03-08T230157.874
    Traditionally, it has been believed that dairy cows are able to fully utilize the phosphorus (P) in feed, including that from plant-derived phytate, because of phytase activity of bacteria in the rumen. However, recent data have shown otherwise.

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  • Mar
    09
    Interpretive Summary: Red clover supplementation modifies rumen fermentation and promotes feed efficiency in ram lambs


    100x100 ASAS Blog Template - 2023-03-08T231329.808
    Red clover is rich in the bioactive isoflavone, biochanin A. The goal was to evaluate the impacts of biochanin A supplementation via red clover hay on growth performance of ram lambs as well as the rumen microbiota and fermentation.

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  • Mar
    09
    Interpretive Summary: Identification of potential candidate genes and regulatory pathways related to reproductive capacity in hypothalamus and pituitarium of male ducks (Anas platyrhynchos) by differential transcriptome analysis


    100x100 ASAS Blog Template - 2023-03-08T233138.854
    Individual reproductive capacity is crucial to poultry breeding and reproduction. The hypothalamus–pituitarium–gonad axis is an important pathway regulating animal spermatogenesis and sexual behavior. This study identified the neuroactive ligand–receptor interaction pathway as the potential biological pathway regulating the semen quality and sexual behavior by differential transcriptome analysis of the hypothalamus and pituitarium of male ducks.

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  • Mar
    02
    Interpretive Summary: Effects of a milk oligosaccharide biosimilar on fecal characteristics, microbiota, and bile acid, calprotectin, and immunoglobulin concentrations of healthy adult dogs treated with metronidazole


    100x100 ASAS Blog Template - 2023-03-01T220808.787
    Our objective was to test the effects of a novel milk oligosaccharide biosimilar (GNU100) on the fecal characteristics, microbiota, and bile acid (BA) concentrations of healthy adult dogs treated with antibiotics.

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  • Mar
    02
    Interpretive Summary: Undergraduate student attitudes to current poultry industry issues over four semesters: surveying an introductory poultry science course


    100x100 ASAS Blog Template - 2023-03-01T215040.957
    Individual experience and demographics affect perceptions of animal production. Understanding how science-based education alters these opinions is a critical aspect of improving instruction and increasing consumer engagement in the poultry industry.

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  • Mar
    02
    Interpretive Summary: Cryoprotectant effects of natural honey on spermatozoa quality of pre-freezing and frozen-thawed boar semen


    100x100 ASAS Blog Template - 2023-03-01T135926.335
    To preserve the semen of male pigs for long-term usage, especially for artificial insemination, semen samples are frozen at temperatures below zero degrees. This research study was conducted with the aim of improving the qualities of semen samples from male pigs that are usually negatively impacted by extremely low temperatures during the preservation process using liquid nitrogen.

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  • Mar
    02
    Interpretive Summary: Apparent jejunal amino acid digestibility, gut morphology, and the expression of intestinal amino acid transporters in pigs fed protein or free amino acids


    100x100 ASAS Blog Template - 2023-03-01T134659.895
    The amino acids (AA) in the diet of pigs are usually supplied as a mix of proteins and free AA. Proteins need to be digested first before their constituent AA become available to the animal. Free AA, together with small peptides, are readily available without the need for digestion.

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