Scientia Agropecuaria最新文献_第9页

The frequency range in THz spectroscopy and its relationship to the water content in food: A first approach 太赫兹光谱的频率范围及其与食品中含水量的关系:第一种方法

IF 1.5

Scientia Agropecuaria Pub Date : 2021-12-15 DOI: 10.17268/sci.agropecu.2021.066

H. Arteaga, Noemí León-Roque, Jimy Oblitas

{"title":"The frequency range in THz spectroscopy and its relationship to the water content in food: A first approach","authors":"H. Arteaga, Noemí León-Roque, Jimy Oblitas","doi":"10.17268/sci.agropecu.2021.066","DOIUrl":"https://doi.org/10.17268/sci.agropecu.2021.066","url":null,"abstract":"The objective of this review is to report on the progress made so far in the development of THz spectroscopy technology with application in the food industry, as well as, to evaluate the range of frequencies used by this technology in relation to the water content of food, to find patterns in which the physicochemical characterization of food samples is most effective. From the literature reviewed, it has been found that THz spectroscopy is still in constant development, both in the physical part of the equipment and in the data processing techniques. Despite these advances, the frequency ranges in which the identification of compounds are influenced by the interference of the water composition of food have not been clearly identified, even molecular behavior of water in the frequency ranges corresponding to the spectral band of THz is still little known. When performing a meta-analysis of the data specifying the frequency ranges in relation to the water content of food samples, reported in the literature, two intervals have been identified, where the action of THz waves have a better response in terms of the quantification of water, as well as of other compounds, which are mainly evidenced in lower water content, explained by the mechanisms of water relaxation in response to the interaction of THz waves. This result suggests that the influence of water content on the quantification of compounds should be considered, as it may be under or overestimated.","PeriodicalId":21642,"journal":{"name":"Scientia Agropecuaria","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48500438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Lasiodiplodiatheobromae(Pat.) Griffon & Maubl [(syn.) Botryodiplodia theobromae Pat] in the cocoa crop: symptoms, biological cycle,and strategies management 可可作物中的Lasiodiplodiatheobromae（Pat.）Griffon&Maubl[（syn.）Botryodiplodia theobromea-Pat]：症状、生物周期和策略管理

IF 1.5

Scientia Agropecuaria Pub Date : 2021-12-15 DOI: 10.17268/sci.agropecu.2021.068

Anthony A. Moreira-Morrillo, Ángel V. Cedeño-Moreira, Fabricio Canchignia-Martínez, F. R. Garcés-Fiallos

引用次数: 1

Global studies of cadmium in relation to Theobroma cacao: A bibliometric analysis from Scopus (1996 -2020) 镉与可可可可相关的全球研究:来自Scopus的文献计量学分析(1996 -2020)

IF 1.5

Scientia Agropecuaria Pub Date : 2021-12-15 DOI: 10.17268/sci.agropecu.2021.065

L. García, Fabio Angulo Castro, Ángel David Hernández-Amasifuen, M. Corazon-Guivin, Javier Alburquerque Vásquez, J. C. Guerrero-Abad, Erick Arellanos, J. Veneros, Nilton B. Rojas B., Segundo Chavez Quintana, M. Oliva

{"title":"Global studies of cadmium in relation to Theobroma cacao: A bibliometric analysis from Scopus (1996 -2020)","authors":"L. García, Fabio Angulo Castro, Ángel David Hernández-Amasifuen, M. Corazon-Guivin, Javier Alburquerque Vásquez, J. C. Guerrero-Abad, Erick Arellanos, J. Veneros, Nilton B. Rojas B., Segundo Chavez Quintana, M. Oliva","doi":"10.17268/sci.agropecu.2021.065","DOIUrl":"https://doi.org/10.17268/sci.agropecu.2021.065","url":null,"abstract":"The maximum cadmium tolerance standards were established by the European Union in 2014, for the importation of cocoa-based products, causing concern in the countries. Global studies on Theobroma cacao research related to cadmium activity in the atmosphere were analyzed. Bibliometric analyses in R and VOSviewer programs were used to examine 64 documents published in the Scopus database according to keywords. We identified 811 keywords in the co-occurrence of terms, 5 thematic groups in the bibliographic coupling, 20 institutions as most important affiliations, 20 countries of origin of corresponding authors, 112 institutions in co-authorship network of which 5 are in primary documents, and two groups in thematic similarity in co-citation of documents. The United States leads the scientific production with 11 papers, followed by Colombia (8) and Ecuador (7). In 1996, the first scientific article was registered for the network, with increases of up to 11 publications by 2020. In conclusion, the need to strengthen and create more research networks between countries, institutions, authors, and co-authors is evident. It is hoped that the results will allow a comprehensive unraveling of the cadmium-cocoa research trajectory, while at the same time yielding new prospective research.","PeriodicalId":21642,"journal":{"name":"Scientia Agropecuaria","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42437442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Genetic diversity and phylogeny of the genus Cinchona in Cutervo National Park, Peru 秘鲁Cutervo国家公园金鸡纳属的遗传多样性和系统发育

IF 1.5

Scientia Agropecuaria Pub Date : 2021-12-15 DOI: 10.17268/sci.agropecu.2021.056

Karla Andrea Peña Yacila, Erick Antonio Suarez-Peña, Carlos Alberto Torres Pera, Luis Alberto Bermejo Requena, Luis Xavier Llacsa Sánchez, Iris Zárate Rodríguez, O. Paredes-Vilca, José Yasser Dávila García

引用次数: 2

Allometric model of biomass of white bolaina (Guazuma crinitaMart.) trees in forest plantations of Ucayali, Peru 秘鲁乌卡亚利森林人工林中白bolaina (Guazuma crinitaMart.)树木生物量异速生长模型

IF 1.5

Scientia Agropecuaria Pub Date : 2021-12-15 DOI: 10.17268/sci.agropecu.2021.062

Jorge Manuel Revilla-Chávez, Edinson Eduardo López-Galán, Wilson Francisco Guerra-Arévalo, Diego Gonzalo García-Soria, Krystel Clarissa Rojas-Mego, Gilberto Domínguez-Torrejón, Carlos Abanto-Rodríguez

引用次数: 1

Effects of different amounts of crude glycerol supplementation on dry matter intake, milk yield, and milk quality of lactating dairy cows grazing on a Kikuyu grass pasture 饲粮中添加不同量的粗甘油对基库尤草牧场泌乳奶牛干物质采食量、产奶量和乳品质的影响

IF 1.5

Scientia Agropecuaria Pub Date : 2021-10-08 DOI: 10.17268/sci.agropecu.2021.053

Diana Marcela Valencia E, Luis Alfonso Giraldo, A. Marín, Yury Tatiana Granja Salcedo, T. Berchielli

{"title":"Effects of different amounts of crude glycerol supplementation on dry matter intake, milk yield, and milk quality of lactating dairy cows grazing on a Kikuyu grass pasture","authors":"Diana Marcela Valencia E, Luis Alfonso Giraldo, A. Marín, Yury Tatiana Granja Salcedo, T. Berchielli","doi":"10.17268/sci.agropecu.2021.053","DOIUrl":"https://doi.org/10.17268/sci.agropecu.2021.053","url":null,"abstract":"The aim of this study was to determine the effects of different amounts of crude glycerol (CGL) on dry matter intake, milk yield, milk protein yield, and milk fatty acid profile of dairy cows grazing on a Kikuyu-based pasture. Six Holstein cows were used in the first third of lactation (mean ± SD 559 ± 22.5 kg body weight, 43 ± 10 days in milk, and 26.8 ± 1.2 kg milk/day) and were randomized within a replicated 3 × 3 Latin square arrangement. Animals grazed the Kikuyu grass and were supplemented with a commercial energy-protein concentrate at 1.0 kg/4.0 kg of milk. The experimental period was 69 days. The following treatments were administered: CGL0 (control, without glycerol), CGL1 (750 g/cow/day), and CGL2 (1,500 g/cow/day). The addition of 750 and 1,500 g of CGL did not affect grass and concentrate intake (P > 0.05). However, milk yield (FCM 3.5%) increased by 14.2% in the CGL2 group compared to that obtained in the control group (CGL0) (P = 0.02). The addition of 1,500 g of CGL to the diet resulted in a 2.1% greater yield of milk protein compared to that obtained with CGL0 treatment (P = 0.01). Further, the addition of 1,500 g of CGL did not impact grass intake, milk fat concentration, or fatty acid composition (P < 0.05). Thus, the inclusion of CGL as a co-product may be a nutritional strategy to increase the productivity of dairy production systems in tropical perennials, such as Kikuyu grass.","PeriodicalId":21642,"journal":{"name":"Scientia Agropecuaria","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48427910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bacteriophage cocktail as a substitute for antibiotic-type growth promoters in poultry 噬菌体鸡尾酒作为抗生素型生长促进剂在家禽中的替代品

IF 1.5

Scientia Agropecuaria Pub Date : 2021-10-08 DOI: 10.17268/sci.agropecu.2021.054

C. E. Honorio-Javes, Y. Vallenas-Sánchez, J. T. Bazán Pérez

{"title":"Bacteriophage cocktail as a substitute for antibiotic-type growth promoters in poultry","authors":"C. E. Honorio-Javes, Y. Vallenas-Sánchez, J. T. Bazán Pérez","doi":"10.17268/sci.agropecu.2021.054","DOIUrl":"https://doi.org/10.17268/sci.agropecu.2021.054","url":null,"abstract":"Aviculture is forced to find alternatives to replace antibiotic-type growth promoters to reduce antimicrobial resistance. Among these alternatives we have bacteriophages that are the natural predators of bacteria; however, research point out to their use as therapeutics and not as growth promoters. For this reason, this review article focuses on discussing and projecting the use of lithic bacteriophage cocktails as growth promoters in commercial breeding of broilers, laying hens and quails. Evaluating its effects on production parameters, its application in drinking water and food, phage protection strategies on gastrointestinal pH changes and high pelleting temperatures, strategies against phage-resistance, its effects on the intestinal microbiota, and the use of autophages versus commercial products. It is concluded that the optimal use of bacteriophages in aviculture is through mixed cocktails of protected lithic autophages. Finally, it is recommended to compare the use of mixed lithic autophage cocktails with mixed commercial phage cocktails that exist on the market; Additionally, the combination of mixed cocktails of protected lithic autophages with other alternatives such as probiotics, prebiotics, essential oils and organic acids should be evaluated, and this combination should be compared with the use of growth-promoting antibiotics.","PeriodicalId":21642,"journal":{"name":"Scientia Agropecuaria","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45022970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

High throughput sequencing for the detection and characterization of new virus found in arracacha (Arracacia xanthorrhiza) 用于检测和鉴定在arracacha（Arracacia xanthorhiza）中发现的新病毒的高通量测序

IF 1.5

Scientia Agropecuaria Pub Date : 2021-10-08 DOI: 10.17268/sci.agropecu.2021.051

J. De Souza, S. Fuentes, G. Müller, H. Gamarra, M. Guzmán, W. Cuellar, J. Kreuze

引用次数: 0

Evaluation of the crop water stress index (CWSI) in chili pepper (Capsicum) under drip irrigation in the arid conditions of the north coast of Peru 秘鲁北海岸干旱条件下滴灌辣椒作物水分胁迫指数(CWSI)的评价

IF 1.5

Scientia Agropecuaria Pub Date : 2021-10-08 DOI: 10.17268/sci.agropecu.2021.052

M. Duran, F. Ramos, R. Alvarado, L. Altamirano

{"title":"Evaluation of the crop water stress index (CWSI) in chili pepper (Capsicum) under drip irrigation in the arid conditions of the north coast of Peru","authors":"M. Duran, F. Ramos, R. Alvarado, L. Altamirano","doi":"10.17268/sci.agropecu.2021.052","DOIUrl":"https://doi.org/10.17268/sci.agropecu.2021.052","url":null,"abstract":"As irrigation water decreases, crop transpiration also decreases, resulting in an increase in leaf temperature and an increase of the crop water stress index (CWSI). Therefore, in the study, the response of Capsicum to different irrigation regimes was evaluated with periodic measurements of leaf temperature, stomatal conductance and estimation of the CWSI. The treatments consisted of a complete drip irrigation (RO) and deficit irrigation (RD-78 and RD-58) that received 78% and 58% of the complete irrigation, applying a total volume of water of 3363, 2618 and 1956 m 3 ha -1 for RO, RD-78 and RD-58, respectively; and obtaining maximum yields of 30.2, 13.9 and 12.9 t ha -1 with CWSI of 0.50, 0.62 and 0.54 in C. bacatum , C. annumm and C. chinense , respectively. The highest stomatal conductance values ranged from 724 to 887 mmol s -1 m -2 , with CWSI from 0.1 to 0.3. The CWSI value of 0.3 (soil moisture from 25 to 33%) results in a good indicator of the time of irrigation, and it might be a criterion to be incorporated to save water and improve the management of Capsicum irrigation programs.","PeriodicalId":21642,"journal":{"name":"Scientia Agropecuaria","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44416695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pollination with drones: A successful response to the decline of entomophiles pollinators? 用雄蜂授粉:对昆虫传粉者数量下降的成功回应?

IF 1.5

Scientia Agropecuaria Pub Date : 2021-10-08 DOI: 10.17268/sci.agropecu.2021.055

Argenis de Jesús Montilla-Pacheco, Henry Antonio Pacheco-Gil, Félix Reinaldo Pastrán-Calles, Irene Rosario Rodríguez-Pincay

{"title":"Pollination with drones: A successful response to the decline of entomophiles pollinators?","authors":"Argenis de Jesús Montilla-Pacheco, Henry Antonio Pacheco-Gil, Félix Reinaldo Pastrán-Calles, Irene Rosario Rodríguez-Pincay","doi":"10.17268/sci.agropecu.2021.055","DOIUrl":"https://doi.org/10.17268/sci.agropecu.2021.055","url":null,"abstract":"Some types of unmanned aerial vehicles (UDs) are called drones. These equipment’s of wide versatility have been applied very recently for different tasks, among which is agriculture. From there, this technology is responding to the decline of biopolynizers in different fields around the world. The objective of this work was to analyze the implications of the use of such devices in agricultural practices in the absence of entomophiles pollinators. Methodologically it was developed as a bibliographic review, consulting databases such as Scopus, Science Direct, Google academic and others; filtering by keywords, selecting the works according to the subject of interest and the criteria of the authors. Key information from the selected documents was extracted through the documentary analysis. As a result of this review, experiences related to the application of USNs in crop fertilization were found; the literature consulted also agrees to point out that drones are a viable strategy for such activity and is at the same time a solution to the diminution of entomophiles pollinators in certain regions of the Earth. However, the reference literature, very little reports possible adverse effects, which from an ecological point of view could arise from the use of USRs in agri-food production. It is concluded that further research is needed to understand the ecological consequences that may arise from the use of the equipment.","PeriodicalId":21642,"journal":{"name":"Scientia Agropecuaria","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46671804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1