Agricultural and Food Science最新文献_第2页

Quality assessment of cold dried chicken slices during storage in different packages and temperatures 冷干鸡片在不同包装和温度下贮藏的质量评价

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-07-11 DOI: 10.23986/afsci.130323

Elif Aykın Dinçer, M. Erbaş

{"title":"Quality assessment of cold dried chicken slices during storage in different packages and temperatures","authors":"Elif Aykın Dinçer, M. Erbaş","doi":"10.23986/afsci.130323","DOIUrl":"https://doi.org/10.23986/afsci.130323","url":null,"abstract":"In this study, dried chicken slices were packaged in MAP (modified atmosphere packaging) and AP (atmospheric packaging), and stored at 4 °C and 25 °C. The CO2 content of MAP packaged samples decreased as the storage temperature and time increased. The slices exhibited lower aw values when they were packaged in AP at 25 °C. The pH increased from 6.1 to 6.2, 2-thiobarbituric acid reactive substances (TBARS) increased from 10.6 to 37.3 µmol MDA kg-1, and non-protein nitrogen (NPN) increased from 4.9 to 5.3 g 100 g-1 in MAP for 90 days of storage. The microbiological quality of the samples was assessed by enumerating total aerobic mesophilic bacteria (TAMB), total psychrophilic bacteria (TPB), Micrococcus/ Staphylococcus, lactic acid bacteria (LAB), Enterobacteriaceae and yeast-mold, and was higher in the sample stored in MAP at 4 °C. Moreover, the sensory quality was determined by sensory evaluation with a 9-point hedonic scale. When the sensory and microbiological qualities were evaluated together, the shelf lives of the samples were determined to be 90 days at 4 °C and 75 days at 25 °C for MAP and 45 days at 4 °C and 30 days at 25 °C for AP. It could be concluded that the cold dried chicken slices can be stored in MAP for 90 days without much change in physicochemical, microbiological, and sensory quality.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"139 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86267682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Yield predictions of timothy (Phleum pratense L.) in Norway under future climate scenarios 未来气候情景下挪威蒂莫西草(Phleum pratense L.)产量预测

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-06-27 DOI: 10.23986/afsci.127935

Kristoffer H. Hellton, H. Amdahl, T. Thorarinsdottir, M. Alsheikh, T. Aamlid, M. Jørgensen, Sigiridur Dalmannsdottir, O. Rognli

引用次数: 0

Shortened first regrowth interval of grass silage as a harvesting strategy to improve nutrient supply for dairy cows: a case study 缩短牧草青贮第一次再生间隔作为提高奶牛营养供应的收获策略:一个案例研究

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-05-30 DOI: 10.23986/afsci.127253

A. Sairanen, S. Kajava, A. Palmio, M. Rinne

{"title":"Shortened first regrowth interval of grass silage as a harvesting strategy to improve nutrient supply for dairy cows: a case study","authors":"A. Sairanen, S. Kajava, A. Palmio, M. Rinne","doi":"10.23986/afsci.127253","DOIUrl":"https://doi.org/10.23986/afsci.127253","url":null,"abstract":"Dairy cows have a highly valuable ability to convert grass into milk. A modification of the normal three-cut harvesting strategy was evaluated consisting of shortened first grass regrowth period to increase the energy value of the silage crop over the whole growing season under Boreal conditions. Grass was ensiled from timothy-meadow fescue-red clover swards over two years at three consecutive harvests within the growing season. Diets based on the silages (D1, 1st cut; D2, 2nd cut and D3, 3rd cut) were fed to dairy cows in two milk production experiments using change-over designs and an average concentrate proportion of 0.41 on dry matter basis. Consistently high energy value in silages was achieved and despite minor differences in silage D-values, feed intake was highest for D1. The differences in energy-corrected milk yield between treatments were limited to an increase for D2 in Exp 2 so that feed energy conversion into milk was decreased with D1. A shortened first regrowth interval for grass silage harvest was a viable option, but forage area per animal and other farm specific factors should be considered when choosing the silage harvesting strategy.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"106 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75720392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Response of forage maize yield and quality to mulch film and harvest time in Northern Europe 北欧饲用玉米产量和品质对地膜和收获时间的响应

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-03-02 DOI: 10.23986/afsci.125326

Anniina Lehtilä, A. Sairanen, S. Jaakkola, T. Kokkonen, K. Kuoppala, T. Jokiniemi, D. Wasonga, P. Mäkelä

{"title":"Response of forage maize yield and quality to mulch film and harvest time in Northern Europe","authors":"Anniina Lehtilä, A. Sairanen, S. Jaakkola, T. Kokkonen, K. Kuoppala, T. Jokiniemi, D. Wasonga, P. Mäkelä","doi":"10.23986/afsci.125326","DOIUrl":"https://doi.org/10.23986/afsci.125326","url":null,"abstract":"Forage maize (Zea mays L.) yield and nutritional quality fluctuate markedly in Northern Europe due to weather conditions. A field experiment was conducted in Southern Finland (Helsinki, 2018–2020) and in Central Finland (Maaninka, Kuopio, 2019–2020) to study the effect of harvest time and use of mulch film, in order to optimize the dry matter (DM) yield and quality. Treatments included oxo-biodegradable mulch film and no mulch, and three harvest times (the latter only in Helsinki). Mulch film increased DM yield on average by 2.3 Mg ha-1 in Helsinki and by 3.8 Mg ha-1 in Maaninka. Mulch film had a minor effect on the quality, and overall, the quality improved, although DM yield accumulation had already ceased. Nevertheless, the starch contents fluctuated and remained mostly below the target rate – 300 g kg-1 DM – especially in Central Finland. The results indicate that mulch film improves forage maize yield, but a late harvest is still required to improve forage quality. However, climate conditions still restrict starch accumulation to ears in Northern European climate conditions, especially in the important milk production area in Central Finland.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"75 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84012733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Evaluation of the Finnish action plan for the sustainable use of pesticides 2018–2022 评估芬兰2018-2022年农药可持续使用行动计划

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-02-16 DOI: 10.23986/afsci.122220

S. Autio, Emilia Laitala, Kaija Kallio-Mannila

引用次数: 0

Increasing selenium concentration in Finnish organic milk using participatory action approach 采用参与式行动方法提高芬兰有机牛奶中的硒浓度

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-02-14 DOI: 10.23986/afsci.119804

E. Kuusela, L. Okker, Juho Kopra

引用次数: 0

Action-oriented knowledge for sustainable management of organic soils in Finnish agriculture 芬兰农业有机土壤可持续管理的行动导向知识

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2023-01-09 DOI: 10.23986/afsci.120743

Ellen Huan-Niemi, S. Huttunen, Ari Paloviita, Antti Puupponen, H. Lehtonen, J. Niemi

{"title":"Action-oriented knowledge for sustainable management of organic soils in Finnish agriculture","authors":"Ellen Huan-Niemi, S. Huttunen, Ari Paloviita, Antti Puupponen, H. Lehtonen, J. Niemi","doi":"10.23986/afsci.120743","DOIUrl":"https://doi.org/10.23986/afsci.120743","url":null,"abstract":"Agriculture is a contributing force to climate change due to unsustainable changes in land use with the usage of peatlands for food production in Finland. The use of organic soils in food production is a complex and politically driven issue, thus multistakeholder and participatory approaches to policy development, implementation and evaluation are essential. This study is integrating qualitative and quantitative methods in an iterative process to produce action-oriented knowledge for supporting actions to sustainably manage peatlands and reduce the enormous greenhouse gas emissions from agricultural peatlands. This study has engaged inter-disciplinary researchers and transdisciplinary actors in the Finnish food system via farmers, regional and ministry officials, food industry representatives along with education and research representatives to produce action-oriented knowledge for sustainability. The results indicate that actions are needed to develop a shared understanding between relevant actors and stakeholders in the food system to create activities and effective policy measures to remove peatlands from active production in Finland. Therefore, there is a necessity to identify and define incentives from both the public and private sectors to remove peatlands from food production, and thus reducing greenhouse gas emissions from agriculture. Interventions that account for local, regional, and national perspectives should be co-created among the inter-disciplinary researchers and transdisciplinary actors in the food system to generate transformative and system-wide change in the transition towards a low-carbon society.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89948668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Variations of early postmortem pH in carcasses of grass-fed steers and its relationship with glycolytic potential and meat quality traits 草饲肉牛死后早期pH值的变化及其与糖酵解潜能和肉质性状的关系

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2022-12-31 DOI: 10.23986/afsci.121501

N. Jerez-Timaure, Gaspar Brinckmann, M. Berkhoff, A. Ramírez-Reveco, P. Strobel

{"title":"Variations of early postmortem pH in carcasses of grass-fed steers and its relationship with glycolytic potential and meat quality traits","authors":"N. Jerez-Timaure, Gaspar Brinckmann, M. Berkhoff, A. Ramírez-Reveco, P. Strobel","doi":"10.23986/afsci.121501","DOIUrl":"https://doi.org/10.23986/afsci.121501","url":null,"abstract":"This study aimed to investigate the multivariate relationship between the glycolytic potential, and meat quality traits from grass-fed steers carcasses with variations in early postmortem pH. From a contemporary group of steers (n=70) from the same production unit and slaughtered under similar conditions, thirty carcasses (10/group) were selected based on pH values measured at 3h (pH3h): Low (< 6.2), Intermediate pH3h (6.2–6.5), and High (> 6.5). Carcasses segregated by pH3h groups were different (p < 0.05) in muscular glycogen (MCG), glucose (G+G6P) content, glycolytic potential (GP) and GPstrict (GP without lactate content). The interaction pH3h groups × sampling time was significant only for lactate content (LC) (p < 0.05). Quality traits, except redness, did not vary (p > 0.05) among pH3h groups. Color variables had a positive and moderate correlation with MGC, G+G6P, LC, and GP. Results does not allow to recommend early carcass segregation by very early pH (3h postmortem); however, important bivariate and multivariate relationships between G+G6P, lactate content and instrumental color parameters in LL muscle from grass-fed cattle were demonstrated.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"123 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78409483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Chemical treatment of straw for ruminant feeding with NaOH or urea – investigative steps via practical application under current European Union conditions 用氢氧化钠或尿素化学处理秸秆用于反刍动物饲养-在当前欧盟条件下通过实际应用的研究步骤

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2022-12-31 DOI: 10.23986/afsci.115262

S. Martens, Vicki Wildner, Johanna Schulze, W. Richardt, J. Greef, A. Zeyner, O. Steinhöfel

{"title":"Chemical treatment of straw for ruminant feeding with NaOH or urea – investigative steps via practical application under current European Union conditions","authors":"S. Martens, Vicki Wildner, Johanna Schulze, W. Richardt, J. Greef, A. Zeyner, O. Steinhöfel","doi":"10.23986/afsci.115262","DOIUrl":"https://doi.org/10.23986/afsci.115262","url":null,"abstract":"Weather extremes in parts of Europe have led to a renewed search for alternative feeds for ruminants. Cereal straw presents one source of fibre, which is hard to digest due to its lignin-carbohydrate complexes. Chemical and biological treatments have been investigated to improve digestibility. Here, the applicability of alkaline treatments for farming conditions under EU legislation and their efficacy were checked. Thus, we tested caustic soda (60, 120 g kg-1straw) and urea (15, 30, 45, 60 g kg-1 straw without and with urease addition) applications both at laboratory scale and using a mixer-wagon. The nutritive value was evaluated analyzing chemical parameters including fibre components and estimating in vitro digestibility. The in vitro digestibility indicated by gas production, enzymatically soluble substrate and neutral detergent fibre digestibility (30h) was highest for the NaOH treatments, which did not differ by dose. Remoistening the straw to 600 g DM kg-1 was a precondition for the effectiveness of both treatments. Urease addition enhanced the intended ammonification when urea was applied at ≥ 30 g kg-1. An ambient temperature for urea treatment ≥ 25 °C was necessary and had to be maintained for at least 14 d post treatment. The determination of crude ash in NaOH treated feeds by the standard procedure and time overestimated the mineral fraction and had to be modified. This systematic approach provides guidance for feasible straw treatments for EU farmers. However, trials for feed acceptance and in vivo digestibility are needed to demonstrate the real effect in animals.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"8 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86211901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Testing the aerobic stability of silage-based mixed rations using a multiple indicator approach 采用多指标法测定青贮混合口粮的有氧稳定性

IF 1.2 4区农林科学

Agricultural and Food Science Pub Date : 2022-12-08 DOI: 10.23986/afsci.115968

S. Martens, Annette Jilg, M. Schneider, Barbara Misthilger, S. Ohl, O. Steinhöfel

{"title":"Testing the aerobic stability of silage-based mixed rations using a multiple indicator approach","authors":"S. Martens, Annette Jilg, M. Schneider, Barbara Misthilger, S. Ohl, O. Steinhöfel","doi":"10.23986/afsci.115968","DOIUrl":"https://doi.org/10.23986/afsci.115968","url":null,"abstract":"Total Mixed Rations (TMR) including silages are commonly fed to cattle in many parts of the world, but they tend to deteriorate on exposure to air, especially in the warm season. The aim of the study was to develop an easy to implement protocol in order to compare the aerobic stability of different feed mixtures for lactating dairy cattle and to test the potential of TMR stabilizing products to delay spoilage. The experimental conditions were standardized to 25 °C ambient, and the sample dry matter was adjusted to 400 g kg-1 to challenge shelf life. Temperature rise in an insulated vessel, which is frequently used when testing silages, was shown to be one promising indicator of spoilage activity. Furthermore, determination of pH, scores for visual occurrence of yeasts and moulds and condensation from 0–4 were successfully applied at the end of the 72 h period. A dosage of 4.5 l propionic acid t-1 proved suitable as a positive control when compared to 1.5 and 3.0 l t-1. The commercial products tested at the recommended dose had a similar efficacy. The stabilizing effect depended principally on the original hygienic condition of the ration. Visual evaluation plus the recording of pH, in addition to continuous temperature measurement facilitated this appraisal. Early signs of spoilage, in particular, can only be assessed by visual appraisal. Thus, an evaluation of a combination of indicators of aerobic stability is recommended.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":"88 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79727273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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