Journal of Animal Science and Technology最新文献

{"title":"Broiler detection system for multi-tier broiler house using a cloud platform.","authors":"Jung-Sang Yoo, Chang-Hyup Lee, Jung-Sun Gloria Kim, JoonYong Kim, Ghiseok Kim, Taehyeong Kim, Joong Yong Rhee","doi":"10.5187/jast.2400235","DOIUrl":"https://doi.org/10.5187/jast.2400235","url":null,"abstract":"<p><p>Broilers are bred at a higher density than large livestock, and their relatively small size makes monitoring challenging, requiring a reliable, cost-effective automatic monitoring system for precision farming. Particularly in the case of managing large-scale broiler breeding systems, such as multi-tier broiler houses, it is important to reduce investment in computing facilities and to improve productivity through automatic monitoring technology. However, financial ability of farmers to equip and manage the high-specification computing equipment required by these technologies is limited, necessitating development of affordable monitoring systems. We there propose a lightweight broiler-detection model that augments YOLOv5 with two efficiency modules: Bi-directional Feature Pyramid Network (BiFPN), which fuses multi-scale features with learnable weights to sharpen small-object and GhostNet, which replaces many convolutions with inexpensive \"ghost\" operations to cut parameters. Performance was benchmarked against the original YOLOv5 on a high-spec local GPU machine and CPU based cloud platform. The proposed model attained 90.5% mAP@0.5, marginally below the baseline's 92.8%, yet inference time dropped by 30% on CPU (50.9 ms) and 50% on GPU (1.8 ms). By implementing lightweight models, farmers can utilize monitoring systems from anywhere via mobile devices, leveraging cloud-based technology. This eliminates the necessity for expensive hardware, offering an affordable and practical solution for improving farming management.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 5","pages":"1631-1644"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678335/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multi-omics characterization of the gut microbiota of weaned piglets in response to <i>Lactobacillus plantarum</i> supplementation.","authors":"Nae-Ho Park, Byeonghwi Lim, Chiwoong Lim, Young-Jun Seo, Ji-Yeong Lee, Sang-Hyeop Lee, Jungwoo Yang, Minjee Lee, Kyeong Il Park, Hyunjin Kyoung, Minho Song, Jun-Mo Kim","doi":"10.5187/jast.2600114","DOIUrl":"https://doi.org/10.5187/jast.2600114","url":null,"abstract":"<p><p>Weaning is a critical developmental stage in piglets and is frequently associated with intestinal dysfunction, diarrhea, and growth retardation due to abrupt dietary and environmental changes. Probiotics have been explored as antibiotic alternatives to alleviate postweaning stress, and <i>Lactobacillus plantarum</i> has shown potential for modulating the gut microbiota and improving intestinal health. However, most previous studies have relied on single-omics approaches, limiting mechanistic understanding of host-microbiome interactions. This study employed an integrated multi-omics approach combining ileal transcriptomics, fecal microbiomics, and metabolomics to investigate the effects of dietary <i>L. plantarum</i> supplementation in weaned piglets. Six piglets were assigned to either a control or <i>L. plantarum</i>-supplemented group for two weeks. RNA sequencing, 16S rRNA gene sequencing, and gas chromatography mass spectrometry based metabolomics were conducted, followed by integrative analysis using MIMOSA2 and MetaboAnalyst. Transcriptomic analysis identified 1,229 differentially expressed genes enriched in immune-related pathways, including NF-κB and IgA signaling, as well as epithelial barrier regulation. Microbiome profiling revealed increased microbial diversity, enrichment of <i>Lactobacillus</i>, and reduced abundance of <i>Shigella</i>. Functional prediction suggested enhanced innate immune responsiveness. Integrated metabolome-transcriptome analysis highlighted lipid and amino acid metabolic pathways linking microbial metabolites with host gene expression. Overall, <i>L. plantarum</i> supplementation induced coordinated host-microbiome adaptations associated with reduced oxidative stress, improved intestinal barrier stability, and enhanced immune resilience. These findings provide mechanistic evidence supporting <i>L. plantarum</i> as a promising nutritional strategy to mitigate postweaning stress and improve piglet intestinal health.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 5","pages":"1567-1585"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678343/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Divergent residual feed intake is associated with distinct fecal microbiota in early fattening Hanwoo steers.","authors":"Cheolju Park, Sang Yoon, Min-Seok Kim, Zhongtang Yu, Tansol Park, Minseok Kim","doi":"10.5187/jast.2600072","DOIUrl":"https://doi.org/10.5187/jast.2600072","url":null,"abstract":"<p><p>This study compared the fecal microbiota of Hanwoo steers exhibiting divergent residual feed intake (RFI) during the early fattening stage. In total, 63 Hanwoo steers, aged 16 months and maintained under identical dietary and environmental conditions, were evaluated for RFI based on individual feed intake and growth performance. From this cohort, high-RFI (inefficient; n = 5) and low-RFI (efficient; n = 6) steers representing the extreme 10% of the RFI distribution were selected for fecal microbiota analysis. Fresh fecal samples were collected and subjected to metataxonomic analysis using the Illumina MiSeq platform and QIIME2. At the phylum level, no significant differences were observed between the two steer groups. However, at the genus level, the cellulolytic <i>Cellulosilyticum</i> exhibited a significantly higher abundance in the low-RFI group, suggesting enhanced hindgut cellulose degradation in more efficient animals. Alpha-diversity metrics displayed no significant differences between the two steer groups. Beta-diversity analysis based on unweighted UniFrac distance revealed significant differences in fecal microbiota structure between the two groups, whereas weighted UniFrac analysis showed no significant differences, suggesting that while the two steer groups shared dominant microbiota members, they had distinct low-abundance, phylogenetically distinct taxa. Functional predictions using PICRUSt2 revealed enrichment of the ATP-binding cassette (ABC)-2 type transport system in the low-RFI group, implying greater microbial potential for nutrient uptake and utilization. Collectively, these findings suggest that feed efficiency in Hanwoo steers during early fattening is associated with specific fecal microbial taxa and functional traits rather than differences in overall diversity or dominant taxa.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 5","pages":"1517-1527"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of fructooligosaccharides and inulin on growth performance, immunity and the gut microbiome in weaned piglets.","authors":"Gi Beom Keum, Jinho Cho, Minho Song, Yejin Choi, Juyoun Kang, Hyunok Doo, Jinok Kwak, Haram Kim, Yeongjae Chae, Hyunjin Yang, Suyoung Lee, Eun Sol Kim, Sheena Kim, Hyeun Bum Kim","doi":"10.5187/jast.2500218","DOIUrl":"https://doi.org/10.5187/jast.2500218","url":null,"abstract":"<p><p>Prebiotics such as fructooligosaccharides and inulin are biological activators that selectively stimulate the growth and activity of beneficial bacteria in the gastrointestinal tract. However, their specific effects when applied during the weaning period in piglets remains limited. Therefore, this study evaluated the effects of fructooligosaccharides and inulin supplementation in weaned piglets on growth performance, nutrient digestibility, immune response, and gut microbiota composition with the aim of exploring their potential benefits for piglet health during the weaning transition. A total of 72 weaned piglets (28 days of age) were allocated to three dietary groups: CON (basal diet), FOS (CON + 0.3% fructooligosaccharides), and INU (CON + 3% inulin) to investigate the effects of fructan supplementation. Growth performance, nutrient digestibility, blood profiles, immune responses, and fecal microbiota were evaluated. Although fructan supplementation did not induce significant changes in growth performance or nutrient digestibility, it significantly increased serum immunoglobulin A levels. Furthermore, the fecal microbiota of the fructan supplemented piglets was enriched with short-chain fatty acid-producing bacteria, including <i>Phascolarctobacterium</i>, <i>Agathobacter</i>, <i>Clostridium sensu stricto</i>, and <i>Flavonifractor</i>. Fructan supplementation in the diets of weaned piglets positively influenced immune response and gut microbiota composition, suggesting its potential to enhance gut health during the weaning period.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 5","pages":"1444-1459"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678314/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated effects of diet and probiotics on rumen microbiota and host physiology in ruminants.","authors":"Jeehwan Choe, Miri Park, Seung-Man Yu, Sooah Kim","doi":"10.5187/jast.2500468","DOIUrl":"https://doi.org/10.5187/jast.2500468","url":null,"abstract":"<p><p>Rumen microbiota is essential for nutrient digestion, immune function, and metabolic health in ruminants. With growing interest in sustainable animal production, recent studies have focused on the combined use of diet and probiotics in modulating rumen microbial community and its association with host performance. This review summarizes the effects of dietary strategies on microbial composition and fermentation efficiency. This review also discusses how probiotics such as <i>Saccharomyces cerevisiae</i>, <i>Lactobacillus</i>, <i>Lacticaseibacillus</i>, <i>Lactiplantibacillus</i>, and <i>Bacillus</i> spp. stabilize the rumen environment, enhance fiber degradation, and reduce harmful microbes. These effects are influenced by both the probiotic strain and physiological stage of the animal. Furthermore, it explores how microbial fermentation products, such as volatile fatty acids and ammonia, play an important role as functional indicators reflecting microbial activity and host physiology. Metabolomics, which enables the comprehensive analysis of rumen metabolites, has proven valuable for investigating the influence of diet and probiotics on host metabolism. Hence, the integration of dietary strategies with probiotics can synergistically enhance rumen health and overall productivity in ruminants.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 4","pages":"1002-1014"},"PeriodicalIF":3.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678320/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dietary supplementation with coated zinc oxide enhanced growth performance by modulating systemic immunity and microbial composition in weaned pigs.","authors":"Jinuk Nam, Kyeong Il Park, Jinho Cho, Hyeun Bum Kim, Jinmu Ahn, Youngmin Park, Sheena Kim, Sangwoo Park, Yanhong Liu, Hyunjin Kyoung, Minho Song","doi":"10.5187/jast.2025.e41","DOIUrl":"https://doi.org/10.5187/jast.2025.e41","url":null,"abstract":"<p><p>Dietary zinc oxide (ZnO) is widely adopted in the swine industry to alleviate post-weaning diarrhea and promote the growth performance of weaned pigs. However, its low rate of absorption in the gastrointestinal tract leads to excessive excretion, which causes severe environmental pollution. To overcome this limitation, dietary coated ZnO (CZO) has been studied to enhance zinc absorption and mitigate its environmental influence. In the present study, we investigated the effects of dietary CZO on growth performance, frequency of diarrhea, nutrient digestibility, hematological and immune responses, and fecal microbiota of weaned pigs. A total of 72 weaned pigs (7.30 ± 0.01 kg of average initial body weight; 28 days old) were randomly assigned to three dietary treatments (4 pigs/pen; 6 replicates/treatment): basal weaner diet (CON), CON with 2,500 ppm of ZnO (HZO), and CON with 200 mg/kg of CZO. The experiment was conducted for 6 weeks. The CZO group increased (<i>p</i> < 0.05) average daily gain and gain to feed ratio and showed tendency to reduce (<i>p</i> = 0.094) the frequency of diarrhea compared with the CON group during the first two weeks after weaning. The CZO group showed a tendency for the lowest levels of serum tumor necrosis factor-α (<i>p</i> = 0.072) on day 7 and hematocrit (<i>p</i> = 0.083) on day 14 and the highest (<i>p</i> = 0.072) levels of the immunoglobulin M on day 14 among the treatment groups. The HZO group tended to have the lowest (<i>p</i> = 0.078) serum cortisol levels on day 7 among all treatments. At the genus level of gut microbiota analysis, the dietary CZO group showed a higher (<i>p</i> < 0.05) relative abundance of <i>Prevotella, Eubacterium</i>, and <i>Lactobacillus</i> than pigs treated with the CON diet. The HZO group showed a higher (<i>p</i> < 0.05) relative abundance of <i>Eubacterium</i> and <i>Lactobacillus</i> than the CON group. Our results demonstrated that dietary CZO supplementation enhanced growth performance and reduced the incidence of diarrhea by modulating systemic immune responses and shifting fecal microbial compositions in weaned pigs, suggesting its potential as an alternative to the high dose ZnO diets.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 4","pages":"1148-1163"},"PeriodicalIF":3.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678368/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149223859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Egg fertility assessment system using deep learning technology.","authors":"Jin-Hyun Park, Sea Hwan Sohn, Hee-Mun Park, Sang-Hyon Oh","doi":"10.5187/jast.2600100","DOIUrl":"https://doi.org/10.5187/jast.2600100","url":null,"abstract":"<p><p>In the poultry industry, accurate distinction between fertilized, unfertilized, and hatching failure eggs is a key factor for improving hatching efficiency and reducing resource waste. This study comprehensively evaluated 12 CNN architectures for non-destructive egg fertility classification based on candling-style images captured on days 5-6 of incubation, under four experimental scenarios: Case A (image-level random split, three classes), Case B (egg-level separation, three classes), Case C (image-level random split, two classes), and Case D (egg-level separation, two classes). In Cases A and B, overall accuracy ranged from 93.65%-98.65% and 90.82%-95.79%, respectively. Per-class recall for fertilized eggs exceeded 98% across all models, while hatching failure egg recall was highly variable (5.88%-76.47% in Case A; 0%-27.78% in Case B), reflecting severe class imbalance and visual ambiguity. In Cases C and D (fertilized vs. unfertilized only), overall accuracy improved to 97.02%-99.80% and 95.84%-98.81%, respectively, with unfertilized egg recall ranging from 74.47%-97.87% (Case C) and 58.33%-87.50% (Case D). Egg-level evaluation (Cases B and D) consistently yielded lower accuracy than image-level splitting (Cases A and C), confirming that image-level splitting overestimates real-world generalization performance. CNN selection should be guided by the balance between computational resources and required accuracy: lightweight models (SqueezeNet: 4.7 MB; ShuffleNet: 5.5 MB) suit resource-constrained deployments, while larger models (Inception-v3, VGG-16, VGG-19) offer superior accuracy for high-performance applications. Classification of hatching failure eggs remains challenging due to their visual similarity to both fertilized and unfertilized eggs depending on the timing of developmental arrest, and represents an important direction for future research.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 4","pages":"1272-1293"},"PeriodicalIF":3.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678357/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative effects of deoxynivalenol and deepoxy-deoxynivalenol on porcine oocyte maturation and embryonic development, and the partial protective role of resveratrol.","authors":"Hoyong Choi, Jaehyeok Yoon, Junghui Jo, Xiang Zhang, Kukbin Ji, Inchul Choi, Jeongwoong Lee, Min Kyu Kim","doi":"10.5187/jast.2600045","DOIUrl":"https://doi.org/10.5187/jast.2600045","url":null,"abstract":"<p><p>Mycotoxin contamination of animal feed is a major threat to livestock reproduction. Deoxynivalenol (DON), a trichothecene mycotoxin, disrupts cellular function by binding to ribosomes and inducing ribotoxic stress, oxidative imbalance, and apoptosis. Its primary microbial metabolite, deepoxy-deoxynivalenol (DOM-1), is thought to be less toxic. However, its reproductive effects remain unclear. DON contamination is widely reported in cereal grains used in animal feed, and pigs exposed to contaminated diets have been shown to exhibit detectable DON and DOM-1 levels in blood, urine, and fetal tissues (approximately 8-9 ng/g), highlighting the biological relevance of DON exposure during reproduction. Here, we evaluated the effects of DON (250, 500, and 1,000 ng/mL) and DOM-1 (250, 500, and 1,000 ng/mL) on porcine oocyte maturation and embryonic development <i>in vitro</i>, and examined whether resveratrol (Res, 2 μM) could mitigate DON-induced toxicity. Exposure to DON inhibited cumulus cell expansion, maturation rates and impaired developmental competence, at a concentration of 1,000 ng/mL, developmental arrest was complete. DON-treated oocytes showed increased ROS, decreased GSH, upregulated ER stress and apoptosis-related gene levels (ATF4, XBP1, CHOP, BAX), with downregulated anti-apoptosis gene levels (BCL2). In contrast, DOM-1 had no significant effects compared with those of the controls, except for a modest reduction in the blastocyst rate at the highest concentration. Although Res did not show restorative effects on cumulus cell expansion and nuclear maturation, Res supplementation reduced DON-induced ER stress markers, increased BCL2 levels, and induced blastocyst development in DON-exposed embryos. These findings demonstrate that DON exerts dose-dependent toxicity in porcine oocytes via oxidative stress and ER stress-mediated apoptosis, whereas DOM-1 is largely nontoxic. Res partially protected against DON-induced oocyte damage and confirms its potential as a supplement to combat mycotoxins.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 4","pages":"1099-1116"},"PeriodicalIF":3.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678329/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CowPainCheck: AI-based facial expression analysis for dairy cow welfare.","authors":"Shivam Patel, Suresh Neethirajan","doi":"10.5187/jast.2500286","DOIUrl":"https://doi.org/10.5187/jast.2500286","url":null,"abstract":"<p><p>Pain management in dairy cattle remains a persistent challenge, hindered by subjective assessments and inherent observer biases that compromise animal welfare and impose significant economic burdens due to conditions such as mastitis and lameness. Emerging AI technologies, integrated with computer vision and mobile platforms, now offer transformative solutions through objective, automated facial expression analysis. Advancements in neurobiological research have elucidated the mechanisms underlying bovine pain expression, enabling the development of robust grimace scales validated by high sensitivity and specificity (e.g., UCAPS, sensitivity/specificity: 0.78-0.85). Recent AI models employing advanced architectures such as YOLOv8-Pose (achieving 96.9% mAP in landmark detection) and transformer-based frameworks (demonstrating 98.36% accuracy in facial recognition tasks) significantly surpass conventional methodologies in accuracy, reliability, and scalability. Moreover, multimodal approaches fusing RGB and thermal imaging have demonstrated remarkable efficacy (81%-95% accuracy) in capturing nuanced physiological indicators of pain. Edge-optimized deployment strategies now enable real-time, field-level applications, delivering rapid classifications at up to 24 frames per second with classification accuracies of 94.2%. Yet, substantial challenges persist, particularly in accounting for breed-specific variability and environmental interferences that limit universal applicability. Critical future research avenues include transfer learning for improved crossbreed adaptability, multimodal integration for chronic pain detection, and the advancement of longitudinal monitoring frameworks within precision livestock farming. The practical implications of these technologies are profound, promising significant welfare improvements through timely interventions, reduced economic losses, and the broader ethical advancement of AI-driven veterinary partnerships. The integration of automated facial expression-based pain detection in dairy operations thus holds immense potential to redefine standards in animal welfare and establish a new paradigm for sustainable and ethically aligned global dairy production.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 4","pages":"959-1001"},"PeriodicalIF":3.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678361/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of mineral digestibility and physiological status in adult dogs fed an organic mineral-based diet.","authors":"Seyeon Chang, Kangmin Seo, Han Tae Bang, Kyoung-Min So, Min Young Lee, Sang-Yeob Lee, Woo-Do Lee, Hyun-Woo Cho, Won Yong Jung, Ki Hyun Kim, Ju Lan Chun","doi":"10.5187/jast.2500344","DOIUrl":"https://doi.org/10.5187/jast.2500344","url":null,"abstract":"<p><p>The daily requirement for minerals is minor; nevertheless, they are essential for the metabolism, growth, and reproduction of dogs. Therefore, European Pet Food Industry Federation, Nutrient Research Council, and Association of American Feed Control Officials (AAFCO) recommend minimum levels of essential minerals in pet food. This study examined the potential availability and safety of organic minerals in adult dogs. Five-year-old, neutered female beagle dogs were fed an inorganic (IMD) or organic (OMD) mineral-based diet twice daily for two weeks each in a crossover design. The IMD included Ca(IO₃)₂, FeSO₄, MnSO₄, ZnSO₄, and CuSO₄; the OMD included Ca(IO₃)₂, glycine-chelated Fe (Fe-Gly), Mn (Mn-Gly), Zn (Zn-Gly), and Cu (Cu-Gly). The experimental diets were provided in an amount individually estimated by the maintenance energy requirement equation proposed by AAFCO, and water was provided <i>ad libitum</i>. No significant differences in food and energy intake, body weight, body condition score, and fecal score were observed between the IMD and OMD groups. The OMD group had significantly higher mineral (K, P, Na, Ca, Fe, Zn, Cu, and Mn) and nutrient (organic matter, dry matter, and nitrogen-free extract) digestibility than the IMD group. All parameters of complete blood count remained within the normal physiological range, despite significant differences in some parameters between these two groups. Therefore, OMD may positively influence nutritional metabolism by improving mineral and nutrient digestibility without negatively affecting body weight, body condition score, and digestive and physiological parameters in adult dogs.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 4","pages":"1306-1321"},"PeriodicalIF":3.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13678307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}