Animal Science Journal最新文献_第5页

Equol-Producing Bacteria in the Chicken Intestine: PCR Analysis on the Bacteria Quantitatively Correlating With Equol Concentration in Daidzein-Fed Laying Hens 鸡肠内产马酚细菌：用大豆素饲养的蛋鸡体内马酚浓度与细菌数量相关的PCR分析

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-05-31 DOI: 10.1111/asj.70068

Sota Sakai, Kyohei Furukawa, Fu Namai, Keita Nishiyama, Dipson Gyawali, Tatsuhiko Goto, Motoi Kikusato

{"title":"Equol-Producing Bacteria in the Chicken Intestine: PCR Analysis on the Bacteria Quantitatively Correlating With Equol Concentration in Daidzein-Fed Laying Hens","authors":"Sota Sakai, Kyohei Furukawa, Fu Namai, Keita Nishiyama, Dipson Gyawali, Tatsuhiko Goto, Motoi Kikusato","doi":"10.1111/asj.70068","DOIUrl":"https://doi.org/10.1111/asj.70068","url":null,"abstract":"<div>\u0000 \u0000 Equol is a microbial metabolite from daidzein, an isoflavone, in the animal intestine. This study aimed to identify equol-producing bacteria in the intestines of chickens. Sixteen 181-day-old Hy-Line Brown laying hens were given a basal diet formulated excluding soy products for 2 weeks and subsequently given the diets supplemented with 0-, 100-, 1000-, and 10,000-ppm daidzein for 10 days. Plasma and egg yolk equol concentration was significantly increased with dietary daidzein supplementation. Gene abundance of two major bacterial enzymes catalyzing the conversion of daidzein to equol, dihydrodaidzein reductase, and tetrahydro daidzein reductase was measured using polymerase chain reaction (PCR) analysis, with the abundance increasing with dietary daidzein supplementation (p < 0.05). After sequencing the PCR amplicons, six possible bacteria were identified, and they were further identified and quantified using a specific primer for each bacterial gene. As a result, Adlercreutzia equolifaciens and Slackia equolifaciens were identified, and their bacterial relative abundance increased with dietary daidzein concentration and plasma equol levels (p < 0.05). A. equolifaciens and S. equolifaciens are known as equol-producing bacteria, and the present study was the first to show that these bacteria could also contribute to equol production in chickens.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179250","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

Improvement of Sperm Quality in Cryopreserved Boar Semen by Supplementation of Kaempferia parviflora and Cholesterol-Loaded Cyclodextrin in Semen Extender 增精剂中添加山柰和高胆固醇环糊精对猪冷冻精液精子质量的改善

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-05-28 DOI: 10.1111/asj.70066

Himalai Saiyamanon, Ruthaiporn Ratchamak, Khomsan Buathalad, Wuttigrai Boonkum, Vibuntita Chankitisakul

{"title":"Improvement of Sperm Quality in Cryopreserved Boar Semen by Supplementation of Kaempferia parviflora and Cholesterol-Loaded Cyclodextrin in Semen Extender","authors":"Himalai Saiyamanon, Ruthaiporn Ratchamak, Khomsan Buathalad, Wuttigrai Boonkum, Vibuntita Chankitisakul","doi":"10.1111/asj.70066","DOIUrl":"https://doi.org/10.1111/asj.70066","url":null,"abstract":"<div>\u0000 \u0000 We investigated the potential of Kaempferia parviflora (KP) extract, rich in phenolic compounds, for enhancing boar semen quality during cryopreservation. We evaluated the impact of various KP extract concentrations (0%–8% w/v) in freezing extenders on postthawed semen quality and oxidative stress markers, along with the effects of cholesterol-loaded cyclodextrins (CLC). Semen was frozen using liquid nitrogen vapor before being plunged into liquid nitrogen, and postthaw semen quality and lipid peroxidation were analyzed. Results showed that 2%–4% KP extract significantly improved total and progressive motility, sperm viability, and acrosome integrity compared to the control (p < 0.05), likely due to reduced lipid peroxidation indicated by lower malondialdehyde (MDA) levels (p < 0.05). However, higher concentrations (6%–8%) negatively affected sperm quality. Adding CLC further enhanced the positive effects of KP extract, improving sperm motility and acrosome integrity and reducing lipid peroxidation (p < 0.05). In conclusion, supplementation of boar semen cryopreservation media with 2% KP extract significantly enhanced sperm quality postthawing, likely through its potent antioxidant properties. Combining KP extract with CLC amplified these beneficial effects. These findings highlight a promising natural strategy for improving boar semen cryopreservation outcomes.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171206","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 Microplastic Contamination on In Vitro Ruminal Fermentation and Feed Degradability 微塑料污染对体外瘤胃发酵及饲料降解率的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-05-27 DOI: 10.1111/asj.70063

Khalil Abid, Mohamed Aroua, Salvatore Barbera, Sara Glorio Patrucco, Hatsumi Kaihara, Mokhtar Mahouachi, Samia Ben Saïd, Sonia Tassone

{"title":"Effect of Microplastic Contamination on In Vitro Ruminal Fermentation and Feed Degradability","authors":"Khalil Abid, Mohamed Aroua, Salvatore Barbera, Sara Glorio Patrucco, Hatsumi Kaihara, Mokhtar Mahouachi, Samia Ben Saïd, Sonia Tassone","doi":"10.1111/asj.70063","DOIUrl":"https://doi.org/10.1111/asj.70063","url":null,"abstract":"This study examined the effects of microplastic (MP) contamination on rumen fermentation dynamics and concentrate degradability using an in vitro model with lamb rumen fluid. Three types of MPs—polyethylene terephthalate (PET), low-density polyethylene (LDPE), and polyamide (PA)—were tested at contamination levels of 0%, 0.6%, 1.2%, and 1.8% of dry matter. MP contamination significantly disrupted rumen fermentation dynamics, reduced feed degradability, increased gas production, accelerated fermentation rates, and shortened the lag time before gas production (p < 0.05). Additionally, MPs impaired microbial efficiency, increased ammonia-nitrogen (NH₃-N) levels, decreased rumen protozoa populations, and reduced concentrate degradability (p < 0.05). LDPE exhibited the most severe effects, causing the highest increases in gas production and NH₃-N levels (15% and 12%, respectively at LDPE highest dose) while decreasing microbial efficiency, protozoa count, and feed degradability (16.0%, 16.4%, and 4.5%, respectively at LDPE highest dose). The severity of MPs' impacts followed a significant linear trend, with higher concentrations leading to more pronounced negative effects. The findings highlight MPs as significant emerging pollutants that can adversely affect rumen function and animal nutrition.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148571","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

Resveratrol Supplementation in In Vitro Maturation and Culture Medium: Enhancing Blastocyst Viability After Vitrification 在体外成熟和培养基中添加白藜芦醇：提高玻璃化后囊胚活力

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-05-15 DOI: 10.1111/asj.70061

Kamolchanok Tonekam, Yanapon Anthakat, Apisit Polrachom, Worawalan Samruan, Preeyanan Anwised, Pakpoom Boonchuen, Mariena Ketudat-Cairns, Rangsun Parnpai

{"title":"Resveratrol Supplementation in In Vitro Maturation and Culture Medium: Enhancing Blastocyst Viability After Vitrification","authors":"Kamolchanok Tonekam, Yanapon Anthakat, Apisit Polrachom, Worawalan Samruan, Preeyanan Anwised, Pakpoom Boonchuen, Mariena Ketudat-Cairns, Rangsun Parnpai","doi":"10.1111/asj.70061","DOIUrl":"https://doi.org/10.1111/asj.70061","url":null,"abstract":"<div>\u0000 \u0000 Resveratrol is a potent antioxidant that improves the quality, development, and freezing resistance of mammalian oocytes and embryos by reducing oxidative stress. This study examined the effects of resveratrol supplementation during in vitro maturation (IVM), in vitro culture (IVC), and post-vitrification on the developmental competence of bovine embryos derived from vitrified blastocysts. Oocytes were matured in media with resveratrol at concentrations of 0, 0.5, 1.0, and 2.0 μM. Mitochondrial analysis indicated that vitrified oocytes matured with resveratrol exhibited significantly higher mitochondrial activity than controls (p < 0.05). In IVC, zygotes treated with 0.5 μM resveratrol exhibited significantly higher cleavage (81.70%) and blastocyst rates (37.75%) than untreated embryos (p < 0.05). Vitrified blastocysts derived from resveratrol-supplemented IVC and subsequently cultured without resveratrol for 48 h showed the highest development to the hatching and hatched blastocyst stage (64.15%). Gene expression analysis revealed the BCL2 and SIRT1 upregulation and BAX downregulation. These findings suggest that resveratrol enhances oocyte and embryo quality, mitochondrial function, and cryotolerance.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949927","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

High Dietary Cation and Anion Difference Enhanced Renal Response to an Acute Acid Load of Lactating Goat Fed Under Tropical Conditions 热带条件下高阴阳离子饲粮差异增强了哺乳山羊对急性酸负荷的肾脏反应

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-05-10 DOI: 10.1111/asj.70062

Sapon Semsirmboon, Dang Khoa do Nguyen, Narongsak Chaiyabutr, Sutthasinee Poonyachoti, Thomas A. Lutz, Sumpun Thammacharoen

{"title":"High Dietary Cation and Anion Difference Enhanced Renal Response to an Acute Acid Load of Lactating Goat Fed Under Tropical Conditions","authors":"Sapon Semsirmboon, Dang Khoa do Nguyen, Narongsak Chaiyabutr, Sutthasinee Poonyachoti, Thomas A. Lutz, Sumpun Thammacharoen","doi":"10.1111/asj.70062","DOIUrl":"https://doi.org/10.1111/asj.70062","url":null,"abstract":"<div>\u0000 \u0000 High ambient temperature (HTa) in tropical conditions leads to evaporative heat dissipation by panting in lactating dairy goats. This panting causes respiratory hypocapnia, which increases the renal excretion of buffer molecules including sodium, potassium, and bicarbonate. In response, renal acid excretion decreases to preserve acidity. Besides hypocapnia, lactation and HTa could further deplete buffer molecules, enhancing acid preservation. This current study restored buffer molecules using high dietary cation and anion difference (DCAD) regimen and hypothesized that renal acid excretion during acute acid load would be increased in dairy goats fed high DCAD under HTa. To investigate this, 12 early-lactating dairy goats were randomly assigned to two groups: control and DCAD, which were fed control and high-DCAD diets, respectively, for 8 weeks. Acute acid loading during HTa was induced by high-dose ascorbic acid (AA) supplementation. During Weeks 4 and 8, the vehicle and AA were supplemented on the last two consecutive days of each week. The results showed that the renal acid excretion in DCAD group was higher than control group during high-dose AA supplementation. Together with high renal buffer excretion by DCAD, an increased renal acid excretion may be partially mediated by an increase in buffer reserve.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143930515","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

The Social Dominance of the Rams Did Not Influence Their Sexual Behavior but Did Affect the Number of Lambs Sired and the Lambing Rates 公羊的社会优势不影响公羊的性行为，但影响公羊的产仔数和产羔率

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-04-23 DOI: 10.1111/asj.70060

Estela Garza-Brenner, Fernando Sánchez-Dávila, Keyla Mauleón-Tolentino, Zurisaday Santos-Jiménez, Cecilia C. Zapata-Campos, Rogelio A. Ledezma-Torres, Carlos Luna-Palomera, Javier Hernández-Melendez, Juraj Girzelj, José F. Vazquez-Armijo

{"title":"The Social Dominance of the Rams Did Not Influence Their Sexual Behavior but Did Affect the Number of Lambs Sired and the Lambing Rates","authors":"Estela Garza-Brenner, Fernando Sánchez-Dávila, Keyla Mauleón-Tolentino, Zurisaday Santos-Jiménez, Cecilia C. Zapata-Campos, Rogelio A. Ledezma-Torres, Carlos Luna-Palomera, Javier Hernández-Melendez, Juraj Girzelj, José F. Vazquez-Armijo","doi":"10.1111/asj.70060","DOIUrl":"https://doi.org/10.1111/asj.70060","url":null,"abstract":"<div>\u0000 \u0000 The objective of this study was to evaluate the sexual behavior of rams based on their social dominance (SD) when paired into dyads consisting of dominant rams (DRams) and subordinate rams (SRams) across two breeding seasons (BS) and to assess its impact on the number of lambs sired and lambing rate. Twelve adult rams (six dyads per BS) were used and introduced to 17 and 18 ewes during the summer breeding (SumB) and winter breeding (WinB) seasons, respectively. There were no differences in SD, except for the flehmen response (p < 0.0001). Significant differences (p < 0.05) were found in body development and scrotal circumference, as well as in the sexual inspection traits between BS and ram group. The breeding week influenced each sexual behavior variable (p < 0.05). A higher percentage of single lambing was observed in WinB (46.2%) compared to SumB (27.4%) (p < 0.05). SD had an effect on the type of lambing (p < 0.05), with DRams exhibiting 35.6% twin lambing, while SRams showed only 10.6%. In conclusion, SD did not impact the sexual behavior of hair rams. SD influenced the lambing rate, with DRams producing a higher percentage of twin lambs compared to SRams in hair ewes during the breeding season.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865924","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

Efficacy of β–Glucan From Microalgae on the Intestinal Health and Growth of Nursery Pigs 微藻β -葡聚糖对苗猪肠道健康和生长的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-04-21 DOI: 10.1111/asj.70056

Naiana E. Manzke, Alexa R. Gormley, Young Ihn Kim, Wanpuech Parnsen, Sung Woo Kim

{"title":"Efficacy of β–Glucan From Microalgae on the Intestinal Health and Growth of Nursery Pigs","authors":"Naiana E. Manzke, Alexa R. Gormley, Young Ihn Kim, Wanpuech Parnsen, Sung Woo Kim","doi":"10.1111/asj.70056","DOIUrl":"https://doi.org/10.1111/asj.70056","url":null,"abstract":"This study aimed to investigate the efficacy of β-glucan from microalgae (Algamune, Algal Scientific, Plymouth, MI, USA) on the intestinal health and growth of nursery pigs. One hundred sixty nursery pigs (6.0 ± 1.6 kg BW) were assigned to four treatments arranged in a 2 × 2 factor: antibiotic use and β-glucan supplementation (0.02% Algamune). Diets were fed for 5 weeks, at which eight pigs from each treatment were selected for tissue sample collection. During the overall experimental period, antibiotics improved (p < 0.05) ADG and G:F. In Week 5, β-glucan supplementation increased (p < 0.05) the ADG of pigs without antibiotics, whereas β-glucan supplementation had no effect in pigs with antibiotics. In Phase 3, β-glucan supplementation tended to increase (p = 0.061) ADFI of pigs without antibiotics, whereas β-glucan supplementation had no effect in pigs with antibiotics. Both antibiotics and β–glucan increased (p < 0.05) villus height in the duodenum. Supplementation of β–glucan reduced (p < 0.05) IgA in the jejunum and tended to reduce (p = 0.053) IgA in the ileum. In conclusion, β–glucan from microalgae may encourage growth and feed intake of nursery pigs by improving intestinal health when antibiotics are not used in the diets.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856807","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

Growth Performance, Apparent Digestibility, Serum Indices, and Fecal Bacterial Community Diversity in Yanbian Cattle Fed Diets With Fermented Spent Mushroom Substrate From Pleurotus Eryngii Instead of Brewers Spent Grain 用杏鲍菇发酵废菌底物替代啤酒废粮对延边牛生长性能、表观消化率、血清指标及粪便细菌群落多样性的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-04-16 DOI: 10.1111/asj.70059

Xin Feng, Yunlong Du, Jiaming Luan, Shihui Lu, Dongxu Yang, Shibin Fang, Yutong Liu, Xiaoxue Yang, Lingzhu Lin, Lianyu Yang, Chunyin Geng

{"title":"Growth Performance, Apparent Digestibility, Serum Indices, and Fecal Bacterial Community Diversity in Yanbian Cattle Fed Diets With Fermented Spent Mushroom Substrate From Pleurotus Eryngii Instead of Brewers Spent Grain","authors":"Xin Feng, Yunlong Du, Jiaming Luan, Shihui Lu, Dongxu Yang, Shibin Fang, Yutong Liu, Xiaoxue Yang, Lingzhu Lin, Lianyu Yang, Chunyin Geng","doi":"10.1111/asj.70059","DOIUrl":"https://doi.org/10.1111/asj.70059","url":null,"abstract":"<div>\u0000 \u0000 This experiment was to evaluate the effect of fermented spent mushroom substrate from Pleurotus eryngii (FSMPE) instead of brewers spent grain (BSG) on growth performance, apparent digestibility, serum indices, and fecal bacterial community of Yanbian cattle. Thirty heifers were randomly divided into three groups: T0 group (control group, fed a diet without FSMPE); T1 group (fed a diet with FSMPE instead of 50% BSG); T2 group (fed a diet with FSMPE instead of 100% BSG). The results showed that replacing BSG with FSMPE increased nutrient intake (except ether extract), average daily gain and economic efficiency, among which T1 group had the best effect. The apparent digestibility of dry matter, organic matter, crude protein, and neutral detergent fiber in the T1 group was not affected by FSMPE, but decreased significantly in the T2 group. In addition, FSMPE instead of BSG improved the serum biochemical and antioxidant indices of cattle. Meanwhile, FSMPE not only had no adverse effects on the bacterial diversity, but also improved the abundance of certain cellulose-degrading bacteria and potentially probiotic bacteria in rectal feces. These findings showed that replacing 50% BSG with FSMPE had positive effects on growth performance, economic efficiency, and health status of Yanbian cattle.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836458","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

Impact of Early-Harvested Orchardgrass (Dactylis glomerata L.) Silage With Reducing the Concentrate Input on Dairy Cow Performance, Milk Production, and N Balance 早期收获的果园草（Dactylis glomerata L.）的影响青贮降低精料投入对奶牛生产性能、产奶量和氮平衡的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-04-06 DOI: 10.1111/asj.70054

Akira Yajima, Makoto Miyaji, Takanori Yagi, Yuka Shinoda, Masaya Komatsu, Shingo Tada, Sadaki Asakuma, Yasuko Ueda

{"title":"Impact of Early-Harvested Orchardgrass (Dactylis glomerata L.) Silage With Reducing the Concentrate Input on Dairy Cow Performance, Milk Production, and N Balance","authors":"Akira Yajima, Makoto Miyaji, Takanori Yagi, Yuka Shinoda, Masaya Komatsu, Shingo Tada, Sadaki Asakuma, Yasuko Ueda","doi":"10.1111/asj.70054","DOIUrl":"https://doi.org/10.1111/asj.70054","url":null,"abstract":"<div>\u0000 \u0000 We evaluated the effects of feeding early-harvested first-cut orchardgrass (Dactylis glomerata L.) silage (EGS) instead of silage harvested at a more mature stage (LGS) while increasing forage-to-concentrate ratio on feed intake, behavior, milk production, milk fatty acids profile, and N balance in dairy cows. Six multiparous cows were used in a crossover design with two isoenergetic and isonitrogenous dietary treatments: (1) ET, containing EGS (51.5% dry matter, DM), ear corn silage (ECS; 20% DM), and concentrate (28.5% DM), and (2) LT, containing LGS (36.5% DM), ECS (20% DM), and concentrate (43.5% DM). Compared to LT, ET maintained DM intake (DMI), milk yield (fat-corrected milk [FCM] and energy-corrected milk [ECM]), and feed efficiency (FCM/DMI and ECM/DMI) and increased eating and ruminating times and milk fat content with a lower concentration of C18:1 trans-10; however, it did not affect the concentration of de novo fatty acid and milk fat yield. ET did not affect fecal, urinary, retained, or productive N compared to LT but decreased milk N. The results indicate that feeding EGS instead of LGS could be a good approach to reduce concentrate supplementation without adversely affecting milk production and N efficiency; however, it could decrease milk N utilization.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786861","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

In Vitro Ruminal Fermentation Profiles of Various Starch-Rich Food By-Products 各种富含淀粉的食品副产品体外瘤胃发酵特性研究

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2025-04-03 DOI: 10.1111/asj.70053

Sandi Nayohan, Komura Erina, Masaya Matamura, Yoshimasa Nishikawa, Didier Kichochi Barwani, Hiroki Matsui, Makoto Kondo

{"title":"In Vitro Ruminal Fermentation Profiles of Various Starch-Rich Food By-Products","authors":"Sandi Nayohan, Komura Erina, Masaya Matamura, Yoshimasa Nishikawa, Didier Kichochi Barwani, Hiroki Matsui, Makoto Kondo","doi":"10.1111/asj.70053","DOIUrl":"https://doi.org/10.1111/asj.70053","url":null,"abstract":"This study evaluated nutritional content, gelatinisation rate and rumen fermentation of 13 starch-rich food by-products compared with grain feeds. Using in vitro rumen gas production rates over 24 h, feeds were classified into five clusters. Cluster 1 (corn grits) showed lower rumen fermentability due to low gelatinised starch. Cluster 2 included steam-flaked corn and barley, brown rice tea and barley tea. Cluster 3 (granola, pancake, bread crust, crepe wrapper) exhibited the highest initial gas production rate (p < 0.01), with high sugar and moderate starch. Cluster 4 (ice-cream cone, spring roll wrapper) showed the highest middle-phase gas production rate (p < 0.01), with high gelatinised starch and low sugar. Cluster 5 (ramen, rice cracker, dumpling wrapper, thin wheat noodle) showed slow initial fermentation, accelerating significantly in middle phase. While Clusters 4 and 5 showed the highest organic acid production over 24 h, Cluster 5 had less lactate accumulation in initial and middle phases and a smaller pH decrease compared with Clusters 3 and 4. By-products in Clusters 3, 4 and 5 demonstrated potential to supply more energy to ruminants compared with grain feeds but may increase the risk of ruminal acidosis due to rapid fermentation and subsequent pH reduction.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"96 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761851","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