Animal Science Journal最新文献_第2页

Effects of Ruminal Administration of Propylene Glycol or Sucrose on Ruminal, Blood, and Hepatic Parameters in Nonlactating Cows With High Plasma Nonesterified Fatty Acid Concentrations 瘤胃中添加丙二醇或蔗糖对血浆非酯化脂肪酸浓度高的非泌乳奶牛瘤胃、血液和肝脏参数的影响

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-09-03 DOI: 10.1111/asj.70100

Kyoko Chisato, Rika Fukumori, Ryo Imaishi, Satoshi Gondaira, Hidetoshi Higuchi, Kenichi Izumi, Shin Oikawa

{"title":"Effects of Ruminal Administration of Propylene Glycol or Sucrose on Ruminal, Blood, and Hepatic Parameters in Nonlactating Cows With High Plasma Nonesterified Fatty Acid Concentrations","authors":"Kyoko Chisato, Rika Fukumori, Ryo Imaishi, Satoshi Gondaira, Hidetoshi Higuchi, Kenichi Izumi, Shin Oikawa","doi":"10.1111/asj.70100","DOIUrl":"https://doi.org/10.1111/asj.70100","url":null,"abstract":"<div>\u0000 \u0000 Elevated blood nonesterified fatty acids (NEFA) concentration in prepartum increases the risk of postpartum diseases. This study evaluated whether intraruminal propylene glycol (PG) or sucrose (SC) administration could mitigate elevated blood NEFA induced by intravenous lipid infusion. Four nonlactating, nonpregnant Holstein cows fitted with rumen cannulas were used in a 4 × 4 Latin square design: intravenous saline infusion and ruminal administration of water (S + WT), lipid infusion and administration of water (L + WT), lipid infusion and PG administration (L + PG), and lipid infusion and SC administration (L + SC). The intravenous infusion lasted for 11 h, followed by ruminal administration 4 h after the start of the infusion. Blood NEFA concentration was increased by lipid infusion but was lower in L + PG compared to L + WT. In association with this, higher ruminal propionate and butyrate, blood glucose and insulin, and lower β-hydroxybutyrate (BHBA) concentrations were observed in L + PG. Hepatic carnitine palmitoyl transferase 1 mRNA expression was higher in L + PG and L + SC compared to L + WT. SC administration increased insulin concentrations associated with increased ruminal butyrate concentration but had a smaller NEFA-reducing effect than PG. To alleviate NEFA elevation, PG was more effective than SC, which may have involved sustained stimulation of insulin secretion of PG.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of a Low-Lysine Diet Based on Newly Estimated Lysine Requirements on the Intramuscular Fat Content in the Longissimus Dorsi Muscle of Fattening Pigs 基于赖氨酸需要量估算的低赖氨酸饲粮对育肥猪背最长肌肌内脂肪含量的影响

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-08-31 DOI: 10.1111/asj.70098

Naoya Tsuchino, Katsuaki Takahashi, Takashi Ueno, Teruo Ozeki, Masaya Katsumata

引用次数: 0

Zinc Chloride Supplementation During In Vitro Fertilization Reduces Polyspermic Fertilization of Porcine Oocytes 体外受精过程中补充氯化锌可减少猪卵母细胞的多精受精

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-08-27 DOI: 10.1111/asj.70095

Supitcha Kaewma, Takeshige Otoi, Oky Setyo Widodo, Megumi Nagahara, Aya Nakai, Suong T. Nguyen, Yuichiro Nakayama, Theerawat Tharasanit, Maki Hirata, Fuminori Tanihara

{"title":"Zinc Chloride Supplementation During In Vitro Fertilization Reduces Polyspermic Fertilization of Porcine Oocytes","authors":"Supitcha Kaewma, Takeshige Otoi, Oky Setyo Widodo, Megumi Nagahara, Aya Nakai, Suong T. Nguyen, Yuichiro Nakayama, Theerawat Tharasanit, Maki Hirata, Fuminori Tanihara","doi":"10.1111/asj.70095","DOIUrl":"https://doi.org/10.1111/asj.70095","url":null,"abstract":"As zinc is important for the fertilization competency of sperms and oocytes, we investigated the effects of zinc chloride (ZnCl2) supplementation during in vitro fertilization (IVF) on porcine oocyte fertilization and development. We evaluated the effects of ZnCl2 concentration (0, 1, 10, and 20 μg/mL) on the quality of frozen-thawed boar spermatozoa cultured for 5 h and on oocyte fertilization and embryo development after IVF. Spermatozoa from three different boars were additionally tested. ZnCl2 supplementation effects along with metal chelators, calcium ethylenediaminetetraacetic acid (Ca-EDTA) and zinc EDTA (Zn-EDTA), were also examined. ZnCl2 supplementation did not affect the quality of frozen-thawed spermatozoa after culture for 5 h. Supplementation with 1-μg/mL ZnCl2 decreased the percentage of polyspermic fertilization compared to that at 0- and 20-μg/mL ZnCl2. Moreover, it increased blastocyst formation rate compared to that in the other supplementation groups. In different boar spermatozoa, ZnCl2 supplementation (1 μg/mL) decreased polyspermic fertilization but did not improve embryo development. Co-incubation with Ca-EDTA did not reduce polyspermic fertilization, but Zn-EDTA co-incubation reduced polyspermic fertilization similar to that with ZnCl2 alone. In conclusion, 1-μg/mL ZnCl2 supplementation during IVF reduces polyspermic fertilization but may not improve embryo development.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905514","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}

引用次数: 0

Managing Boar Taint: Issues, Prevention Strategies, and Detection Methods 管理猪瘟：问题、预防策略和检测方法

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-08-13 DOI: 10.1111/asj.70090

Ricardo Pereira-Pinto, Olga Moreira, Manuela Vaz-Velho

{"title":"Managing Boar Taint: Issues, Prevention Strategies, and Detection Methods","authors":"Ricardo Pereira-Pinto, Olga Moreira, Manuela Vaz-Velho","doi":"10.1111/asj.70090","DOIUrl":"https://doi.org/10.1111/asj.70090","url":null,"abstract":"<div>\u0000 \u0000 Managing boar taint involves addressing welfare concerns related to castration, understanding the compounds causing the taint, and developing reliable detection methods. Surgical castration of piglets is common but raises welfare issues, prompting calls for alternatives. The European Union has seen slow progress in banning castration without pain relief, with varying national approaches. Boar taint, caused by androstenone and skatole, produces unpleasant odors and flavors in pork. Factors like genetics, age, and rearing conditions affect taint levels. Raising entire males or using immunocastration are the two main alternatives to physical castration, but both come with drawbacks such as welfare concerns and increased costs. Other strategies include feed supplementation, management practices, and genetic approaches. Detecting boar taint is crucial to ensure product quality, but no universal measurement standard exists. Efforts should focus on improving detection methods and processing techniques to reduce taint perception, balancing welfare, production efficiency, and consumer satisfaction. This review synthesizes existing scientific knowledge on boar taint, its prevention, and detection methods, while highlighting innovative strategies and critical research gaps to guide future advancements in sustainable pork production.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the Back Fat Thickness and Body Weight of Gilts at the Time of Service on Their Productive Performance During Gestation and Lactation in a Commercial Herd 服务期后备母猪背膘厚度和体重对其妊娠和哺乳期生产性能的影响

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-08-12 DOI: 10.1111/asj.70089

Rosa E. Pérez, Manuel López, Gerardo Ordaz, Ruy Ortiz

{"title":"Effect of the Back Fat Thickness and Body Weight of Gilts at the Time of Service on Their Productive Performance During Gestation and Lactation in a Commercial Herd","authors":"Rosa E. Pérez, Manuel López, Gerardo Ordaz, Ruy Ortiz","doi":"10.1111/asj.70089","DOIUrl":"https://doi.org/10.1111/asj.70089","url":null,"abstract":"<div>\u0000 \u0000 The objective was to determine the effects of back fat thickness (BFT) and body weight (BW) of gilts at the time of service on their productive performance during gestation and lactation in a commercial herd. BFT and BW were measured at the time of service, when entering maternity and weaning. Gilts were classified into tertiles according to BFT (low [< 17 mm], moderate [17–15 mm], and high [> 20 mm]) and BW (light [< 140 kg], moderate [140–150 kg], and high [> 150 kg]) at the time of service. A higher (p < 0.05) lactating feed intake (4.5 kg/day) was observed in gilts with BFT < 17 mm. Classification based on BW at the time of service did not show any differences in feed intake during lactation. The greatest (p < 0.05) loss of back fat (4.7 mm) during lactation was observed in gilts with a BFT > 20 mm. The total number of piglets born, piglets born alive, and weaned piglets was higher (p < 0.05) in gilts with a BFT of 17–20 mm. In summary, it was shown that feed intake, weight loss, back fat during lactation, and litter performance were mostly affected by the BFT with respect to BW.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maternal IgY Accelerates Lactobacillus Colonization, Improves Intestinal Barrier Function and Salmonella pullorum Resistance of Offspring Chicks 母体IgY加速乳酸菌定植，提高子代鸡肠道屏障功能和对白痢沙门氏菌的抗性

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-08-11 DOI: 10.1111/asj.70093

Ya-nan Ding, Kun Xie, De-run Wang, Yang Cui, Ya-xing Liu, Hai-han Zhang, Xi He, Ze-he Song

{"title":"Maternal IgY Accelerates Lactobacillus Colonization, Improves Intestinal Barrier Function and Salmonella pullorum Resistance of Offspring Chicks","authors":"Ya-nan Ding, Kun Xie, De-run Wang, Yang Cui, Ya-xing Liu, Hai-han Zhang, Xi He, Ze-he Song","doi":"10.1111/asj.70093","DOIUrl":"https://doi.org/10.1111/asj.70093","url":null,"abstract":"<div>\u0000 \u0000 The study was aimed at examining the effect of maternal IgY levels on embryonic development, gut microbiota colonization, and resistance to Salmonella pullorum infection in offspring chicks. A total of 60 thirty-six-week-old breeders that were sorted from 969 breeders according to their yolk IgY content were allocated to two groups: a high egg yolk IgY levels group (HIgY) and a low egg yolk IgY levels group (LIgY). Fertilized eggs of breeders were collected for hatching. On Day 8, offspring chicks were challenged with S. pullorum. Results showed that compared with the LIgY group, the HIgY group exhibited a considerable increase in embryonic weight, significant enhancement in the richness and diversity of gut microbiota, along with an increased relative abundance of Lactobacillus in 7-day-old chicks (p < 0.05). The bacterial load in the spleen, liver tissue, and cecal contents, the mRNA expression of nitric oxide synthase 2 (NOS2) and interleukin-1β (IL-1β) in the cecal tonsils and spleen of offspring chicks in the HIgY group markedly reduced on 1-day post-infection (dpi) compared with the LIgY group (p < 0.05), and mucin-2 (MUC2) and Occludin mRNA expression in the jejunum of offspring chicks in the HIgY group was markedly increased compared with the LIgY group (p < 0.05). In summary, maternal IgY increased the richness and diversity of gut microbiota, enhanced the colonization of Lactobacillus, improved the immunity and intestinal barrier function, thereby increasing the resistance against S. pullorum infection.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144815006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Brittle Rice Straw as a Novel Roughage Resource for Enhancing the Performance of Holstein Cows 稻秆作为提高荷斯坦奶牛生产性能的新型粗饲料资源的研究

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2025-08-11 DOI: 10.1111/asj.70091

Amonrat Phonkompaeng, Purich Boonchu, Anuchart Sawasdee, K. Teepalak Rangubhet, Phongthorn Kongmun, Bigya Dhital, Rameshwor Pudasaini, Chang-Sheng Wang, Hsin-I Chiang

{"title":"Evaluation of Brittle Rice Straw as a Novel Roughage Resource for Enhancing the Performance of Holstein Cows","authors":"Amonrat Phonkompaeng, Purich Boonchu, Anuchart Sawasdee, K. Teepalak Rangubhet, Phongthorn Kongmun, Bigya Dhital, Rameshwor Pudasaini, Chang-Sheng Wang, Hsin-I Chiang","doi":"10.1111/asj.70091","DOIUrl":"https://doi.org/10.1111/asj.70091","url":null,"abstract":"<div>\u0000 \u0000 This study evaluated the straw of brittle mutant rice (Oryza sativa L.) as an alternative forage for dairy cows. In vitro incubation was conducted to investigate nutrient digestibility in Bermuda hay (BH), wild-type (WT), purple brittle (PB), and green brittle (GB) rice straws. After in vitro analysis, three treatment diets including (i) diet 100% BH, (ii) diet 25% WT (mixed 75% BH), and (iii) diet 25% GB (mixed 75% BH) were used in a feeding trial for Holstein cows. After 48-h in vitro incubation, both brittle straw varieties showed higher dry matter (DM) digestibility than the WT (p < 0.05) and similar to BH. GB and BH showed higher crude protein (CP) digestibility than other treatments (p < 0.05) with no significant difference in neutral detergent fiber (NDF) digestibility. The in situ analysis revealed that the 25% GB diet demonstrated superior DM and CP digestibility compared to the 25% WT diet. Including 25% GB in diets significantly (p < 0.05) improved rumination time but had no significant effect on daily DM intake or ruminal pH, although ruminal ammonia nitrogen concentrations tended to decrease. These results suggest that brittle rice straw varieties could be potential alternative forages for dairy cows.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144815005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Feeding Bean Sprout Residues to Cows on Ruminal Gas Production 饲喂豆芽渣对奶牛瘤胃产气的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-07-23 DOI: 10.1111/asj.70081

Maho Yamanaka, Makito Hori, Toshinori Nakagawa, Masaki Yokoo, Takuji Hirayama

{"title":"Effect of Feeding Bean Sprout Residues to Cows on Ruminal Gas Production","authors":"Maho Yamanaka, Makito Hori, Toshinori Nakagawa, Masaki Yokoo, Takuji Hirayama","doi":"10.1111/asj.70081","DOIUrl":"https://doi.org/10.1111/asj.70081","url":null,"abstract":"<div>\u0000 \u0000 In this study, we investigated the ruminal properties and gas production of cows fed bean sprout residue. Six Holstein cows (average age 24.8 ± 1.0 months) were used and divided into two groups: one that was fed bean sprout residue and one that was not fed bean sprout residue. Three cows were placed in each group in a 2 × 2 crossover design. In the bean sprout residue feeding group, each cow was given 4 kg of raw bean sprout residue in two separate feedings per day, in the morning and in the evening. The survey items were ruminal pH, volatile fatty acid (VFA) concentration, protozoa number, and ruminal gas production, and differences in these items were examined between groups. No significant differences were observed between the groups for any detected VFA concentration. No significant difference was observed in ruminal pH between the groups. The number of protozoa tended to be higher in the bean sprout residue group (p < 0.10). The ruminal methane production was significantly lower in the bean sprout residue-fed group than in the control group (p < 0.01). These results suggest that feeding bean sprout residue may be able to reduce methane emissions without affecting the production of VFAs.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vitamin B6 Status Assessed by Plasma Vitamers and Homocysteine in Lactating Dairy Cows and Its Relationship to Rumen Fermentation, Plasma Metabolites, and Milk Production in Different Environmental Conditions 不同环境条件下血浆维生素和同型半胱氨酸对泌乳奶牛维生素B6含量的影响及其与瘤胃发酵、血浆代谢产物和产奶量的关系

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-07-22 DOI: 10.1111/asj.70084

Suttida Prombood, Taketo Obitsu, R-Jun Frederick Avelino Gaspe, Toshihisa Sugino, Yuzou Kurokawa, Thanutchaporn Kumrungsee

{"title":"Vitamin B6 Status Assessed by Plasma Vitamers and Homocysteine in Lactating Dairy Cows and Its Relationship to Rumen Fermentation, Plasma Metabolites, and Milk Production in Different Environmental Conditions","authors":"Suttida Prombood, Taketo Obitsu, R-Jun Frederick Avelino Gaspe, Toshihisa Sugino, Yuzou Kurokawa, Thanutchaporn Kumrungsee","doi":"10.1111/asj.70084","DOIUrl":"https://doi.org/10.1111/asj.70084","url":null,"abstract":"The supply of vitamin B6 from diet and rumen microbial synthesis is generally considered to be sufficient in dairy cows. However, increased milk yield and environmental factors may alter their vitamin B6 status. This study aimed to clarify the vitamin B6 status in lactating dairy cows milked with automatic milking system (AMS) under different environmental conditions. In the winter and summer feeding experiments, plasma concentrations of vitamin B6 vitamers of pyridoxal (PL) and pyridoxal-5′-phosphate (PLP) with pyridoxic acid (PA), and homocysteine (Hcys) of the cows were assessed, along with their feed intake, milk production, rumen fermentation, and plasma metabolites. Higher PL but lower PA concentrations and PA/(PLP + PL) ratio in plasma were found in the summer experiment compared with the winter experiment, even though plasma PLP concentration, milk production, and dry matter intake were similar between the winter and summer experiments. Plasma concentration of vitamin B6 vitamers and Hcys concentration did not correlate with milk production parameters. However, the PA/(PLP + PL) ratio in plasma negatively correlated with ruminal acetic acid composition. Summer environment and the variation of rumen fermentation could alter the turnover of vitamin B6, even though plasma PLP concentration is likely maintained in lactating cows milked with AMS.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681455","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}

引用次数: 0

Effect of Bacillus hisashii Supplementation on the Growth Performance, Nitrogen Excretion, and Intestinal Microbiota of Broiler Chickens Fed Low Crude Protein Diet 添加hishii芽孢杆菌对低粗蛋白质饲粮肉鸡生长性能、氮排泄和肠道微生物群的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-07-22 DOI: 10.1111/asj.70088

Motoi Kikusato, Fu Namai

{"title":"Effect of Bacillus hisashii Supplementation on the Growth Performance, Nitrogen Excretion, and Intestinal Microbiota of Broiler Chickens Fed Low Crude Protein Diet","authors":"Motoi Kikusato, Fu Namai","doi":"10.1111/asj.70088","DOIUrl":"https://doi.org/10.1111/asj.70088","url":null,"abstract":"<div>\u0000 \u0000 The present study evaluated the effects of feeding a newly found thermophile, Bacillus hisashii, on broiler chickens fed a low crude protein (CP) diet. One hundred day-old male Ross 308 broiler chicks are randomly assigned to four treatment groups of five replicates (five birds per replicate). The groups were fed the isocalorically formulated diets containing normal CP (NCP) or low CP (LCP; −2.0% pt) and the diets supplemented with the B. hisashii probiotics (Pro) until 42 days of age. The LCP diet significantly reduced body weight at 42 days, and the probiotics partially suppressed the reduction. There was no difference in feed intake between the groups, and Pro significantly lowered the feed conversion ratio and fecal nitrogen content in the LCP diet (p < 0.05). The probiotics significantly decreased mucosal interleukin-6 concentration in the LCP diet. There were no differences in α-diversity indices of the cecal microbial community, while Pro improved the relative abundance of the genera Lactobacillus and Escherichia-Shigella in the LCP diet. There were significant differences in β-diversity between the groups, excluding NCP/Pro versus LCP. The results suggest that B. hisashii supplementation improved growth performance and intestinal inflammatory status, possibly through improving intestinal microbial composition and balance in broiler chickens.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0