Agrociencia最新文献_第8页

Peniocereus serpentinus AND Austrocylindropuntia subulata, NEW HOSTS OF THE CACTUS WEEVIL (Metamasius spinolae Gyllenhal) IN THE STATE OF MEXICO 墨西哥仙人掌象鼻虫(Metamasius spinolae Gyllenhal)的新寄主

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-11-16 DOI: 10.47163/agrociencia.v56i7.2759

J. R. Sánchez Pale, Andres QUEZADA SALINAS, Magnolia Moreno Velázquez, María Margarita Oliva Hurtado

{"title":"Peniocereus serpentinus AND Austrocylindropuntia subulata, NEW HOSTS OF THE CACTUS WEEVIL (Metamasius spinolae Gyllenhal) IN THE STATE OF MEXICO","authors":"J. R. Sánchez Pale, Andres QUEZADA SALINAS, Magnolia Moreno Velázquez, María Margarita Oliva Hurtado","doi":"10.47163/agrociencia.v56i7.2759","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i7.2759","url":null,"abstract":"The cactus weevil (Metamasius spinolae) is a pest of Opuntia ficus-indica. It can develop not only in Opuntia species but also in other cacti and members of the Asparagaceae family. In 2017, damage and presence of adult insects with characteristics similar to the cactus weevil were reported in two species of cacti, Austrocylindropuntia subulata and Peniocereus serpentinus. The objective was to identify the insect and determine if the two cacti species are hosts, field and laboratory research was conducted from 2017 to 2019 in the municipality of Axapusco, State of Mexico. Stems with larval damage were selected at four study sites, whic remained in field conditions until the emergence of adult insects. The behaviour of M. spinolae on the host plant, mating sites, incubation period and damage development over time were recorded. M. spinolae was identified and determined to fulfill its life cycle on A. subulata and P. serpentinus. Larvae cause the most damage by feeding on the internal part (pith) of the stems, which causes tissue rotting and death of the affected part. The adult feeds on tender buds and mature stems, causing deformation and weakening of the plant. The two cacti species proved to be host plants that can harbour populations of M. spinolae and, therefore, have a high potential to act as reservoirs of the pest, which can then migrate to prickly-pear cactus crop. This report expands the knowledge of hosts of the cactus weevil. The information obtained shall be useful for vegetable growers to apply phytosanitary measures in alternate hosts, combat reservoirs and avoid re-infestations of the pest.\u0000","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"38 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88544173","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

GENETIC PARAMETERS AND SELECTION CRITERIA IN QUINOA 藜麦的遗传参数和选择标准

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-11-16 DOI: 10.47163/agrociencia.v56i7.2501

Miriam Gabriela Valverde, M. Valverde-Ramos, Ignacio Benitez-Riquelme, S. Miranda-Colín

{"title":"GENETIC PARAMETERS AND SELECTION CRITERIA IN QUINOA","authors":"Miriam Gabriela Valverde, M. Valverde-Ramos, Ignacio Benitez-Riquelme, S. Miranda-Colín","doi":"10.47163/agrociencia.v56i7.2501","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i7.2501","url":null,"abstract":"Quinoa (Chenopodium quinoa Willd.) is a crop with high nutritional and agronomic potential, adapted to environmental stress conditions. It is grown on a small scale in Mexico, and currently improved varieties are not available. In order to establish the basis to guide genetic improvement in Mexico, the objective was to determine the genetic variability, heritability and interrelationships of yield and its components in 16 quinoa genotypes, in a randomized complete block design, in six environments in the central high valleys of Mexico. The proportion of participation of the sources of variation genetic, environmental, and genotype × environment interaction was determined; as well as heritability, response to selection, and phenotypic correlations among morphological characters, yield and its components. Out of 15 variables evaluated, the genetic effects on thousand-grains weight and grain filling period were the most important; whereas for plant height at flowering, harvest index, and stem diameter, environmental effects were the most relevant. The genotype × environment interaction is not greater than 20 % for the 15 variables evaluated. The highest values for additive variance, heritability, and response to selection were for grains per square meter, yield, thousand-grains weight, grain filling period, and panicle emergence. The variables stem diameter, plant height at maturity, grains per square meter, yield per day, grain filling period, and panicle emergence were the most correlated with yield. Therefore, they can be used as indirect yield selection criteria in breeding programs to obtain materials with better agronomic characteristics. Based on the genetic parameters obtained and the association of the variables with yield, grains per square meter, yield per day and plant height at maturity are the most appropriate traits for indirect selection for yield.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"158 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75405080","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

WATER USE AND SUPPLY IN THE NORTHERN REGION OF BAJA CALIFORNIA, MEXICO 墨西哥下加利福尼亚州北部地区的水使用和供应

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-11-11 DOI: 10.47163/agrociencia.v56i7.2547

Fidel Bautista-Mayorga, J. A. García-Salazar, J. S. Mora-Flores, S. X. Almeraya-Quintero, M. Borja-Bravo

{"title":"WATER USE AND SUPPLY IN THE NORTHERN REGION OF BAJA CALIFORNIA, MEXICO","authors":"Fidel Bautista-Mayorga, J. A. García-Salazar, J. S. Mora-Flores, S. X. Almeraya-Quintero, M. Borja-Bravo","doi":"10.47163/agrociencia.v56i7.2547","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i7.2547","url":null,"abstract":"The demographic and economic growth in the northern region of the Mexican state of Baja California has led to increased water use and competition for this resource among diverse consumer sectors. The regional dynamism has made it increasingly difficult to meet the demand for water provision. The aim of this investigation was to allocate the water withdrawn from the Mexicali Valley and San Luis Río Colorado (SLRC) aquifers in a scenario of water scarcity among the various consumer sectors by municipality of the states of Baja California and Sonora, as well as to determine the price that would allow for a reduction in the amount of water taken from the aquifers. A spatial equilibrium model was formulated and validated, considering fixed supply and functions of demand. The 2019 results show that the total demand for water from municipalities in residential, commercial, industrial, agricultural and livestock sectors were 197.2, 21.7, 16.7, 758 and 5.7 hm3, with Tijuana standing out in the first three sectors, whereas Mexicali and SLRC were highlighted in the farming sector. Regarding the water price, the Tijuana, Tecate, and Ensenada municipalities pay a high tariff for its use, whereas Mexicali and SLRC pay the lowest tariffs. A 10 % reduction in water availability would be achieved if the price in the agricultural sector in Mexicali and SLRC increased by 20 and 22 %, respectively, over the base price. As the price rises, the demand in this sector for both municipalities would decrease by 2.6 %.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85651214","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

EVALUATION OF QUINOA GERMPLASM IN ENVIRONMENTS OF THE CENTRAL HIGH-VALLEY LANDS OF MEXICO 墨西哥中部高河谷地区环境中藜麦种质资源评价

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-11-03 DOI: 10.47163/agrociencia.v56i7.2572

M. Valverde-Ramos, E. Espitia-Rangel, S. Miranda-Colín, Ignacio Benitez-Riquelme

{"title":"EVALUATION OF QUINOA GERMPLASM IN ENVIRONMENTS OF THE CENTRAL HIGH-VALLEY LANDS OF MEXICO","authors":"M. Valverde-Ramos, E. Espitia-Rangel, S. Miranda-Colín, Ignacio Benitez-Riquelme","doi":"10.47163/agrociencia.v56i7.2572","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i7.2572","url":null,"abstract":"Quinoa (Chenopodium quinoa Willd.) is a crop that grows under conditions of environmental stress, has high nutritional value, and agronomic potential. It is grown and marketed on a small scale in Mexico. However, there are no varieties or technology for its production. The objective of this research was to determine the performance of quinoa germplasm in the Central high-valley lands of Mexico. Sixteen genotypes of different origins and characteristics were evaluated in three environments in the localities of Nanacamilpa, Tlaxcala; and Santa Lucía de Prías, Texcoco, State of Mexico. Statistical differences (p ≤ 0.05) were found for genotypes. Late genotypes Suyana, Suma, Pata de Venado, Blanca Ayacucho, and Huauzontle showed higher grain yield (4004.9, 3888.3, 3091.1, 2999.7, and 2967.2 kg ha-1, respectively). Among the intermediate genotypes, Tokio rosa and Pasankalla reventona were the better with 2858.4 and 2118.4 kg ha-1, respectively. Whereas among the early genotypes, Tarpuna had the highest grain yield (3005.8 kg ha-1). Regarding seed diameter, only Huauzontle and Quinoa negra had a seed size equal to or smaller than 1.8 mm; the rest of the genotypes can be marketed as grains because of their seed size. Of the environments evaluated, the least favourable was Nanacamilpa 2019, while Santa Lucía de Prías 2019 was the most favourable environment. Overall, the performance of the evaluated genotypes was as expected, as they mostly come from the Inter-Andean Valleys region, which are very similar in altitude and temperature to the Central high-valley lands of Mexico.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"66 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75468444","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

DEEP LITTER PIG PRODUCTION SYSTEM AS A SUSTAINABLE ALTERNATIVE FOR SMALL FARMERS 深窝养猪生产系统作为一个可持续的替代小农

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-10-27 DOI: 10.47163/agrociencia.v56i6.2755

Ponciano Pérez, M. Á. Solís-Tejeda, F. Lango-Reynoso, Pablo Díaz-Rivera, Jorge Aguilar-Ávila, A. Asiain-Hoyos

{"title":"DEEP LITTER PIG PRODUCTION SYSTEM AS A SUSTAINABLE ALTERNATIVE FOR SMALL FARMERS","authors":"Ponciano Pérez, M. Á. Solís-Tejeda, F. Lango-Reynoso, Pablo Díaz-Rivera, Jorge Aguilar-Ávila, A. Asiain-Hoyos","doi":"10.47163/agrociencia.v56i6.2755","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i6.2755","url":null,"abstract":"Small backyard farmers produce pigs mainly on concrete floors, which generates wastewater rich in nitrogenous substances created by the continuous washing of the sheds. The objective of this study was to integrate a systematic review of the information on the deep litter pig production system (SPCCP) as an environmentally sustainable alternative for small farmers in Mexico. The SPCCP uses a layer of absorbent organic matter on which the animals are kept. This technology is considered economical to implement, as it requires less infrastructure. The height of the bedding that favours the transformation of organic matter is 50 to 60 cm. Agricultural by-products such as plant debris or stubble can be used for bedding. The productive parameters of pigs in deep litter (CP) are adequate, with lower labour costs, and the animals have more time to eat, drink and play, which improves animal welfare. The product obtained from the deep bed at the end of the productive cycle has desirable properties to regenerate degraded soils or to enrich soils and can be used in agricultural crops. The SPCCP is simple and efficient, the infrastructure and equipment required are more economical; this production system improves feed conversion and daily weight gain, and benefits animal health and comfort. Since this system does not require washing the sheds, it reduces labour, as well as water needs, and does not generate wastewater. Therefore, the SPCCP complies with technical, financial, environmental, and animal welfare characteristics; it is an alternative for small backyard producers.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"79 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84115487","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

Consumers’ Perception and Behavior towards Geographical Indication Products: The Case of Traditional Pestil from Gümüşhane, Turkey 消费者对地理标志产品的认知与行为:以土耳其<s:1>姆<e:1>哈内传统鼠疫为例

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-10-12 DOI: 10.47163/agrociencia.v56i6.2731

N. Doğan, H. Adanacıoğlu

{"title":"Consumers’ Perception and Behavior towards Geographical Indication Products: The Case of Traditional Pestil from Gümüşhane, Turkey","authors":"N. Doğan, H. Adanacıoğlu","doi":"10.47163/agrociencia.v56i6.2731","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i6.2731","url":null,"abstract":"The main objective of this study is to assess the relationship between the level of consumers' perception of products with geographical indication (GI) and their consumption of products with GI labels. Geographically indicated products were examined within the scope of Gümüşhane fruit pulp (mulberry pestil), which was registered as a Protected Geographical Indication (PGI) in 2004. This research conducted an online survey of 166 consumers living in Gümüşhane province in Turkey. Binary logistic regression analysis method was used to identify the factors affecting the probability of consuming products with GI labels. The model results show that middle-aged, married, middle-income and consumers who correctly perceive the concept of geographical indication products are more likely to consume products with GI labels. According to the logistic regression results, the increase in consumers' level of correct perception of the product notion with GI label increases the probability of consuming products with GI label 2.5 times. The results of this study also tell us that the market share of these products can be increased by improving the consumer perception towards geographically indicated products. Policymakers can also take advantage of these insights to improve lucid understanding of how labels are actually interpreted by consumers.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"36 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80017469","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

MICROBIOLOGICAL QUALITY OF LEAFY GREEN VEGETABLES GROWN IN THE TOLUCA VALLEY 托卢卡山谷生长的绿叶蔬菜的微生物质量

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-10-05 DOI: 10.47163/agrociencia.v56i6.2545

A. T. Gutiérrez Ibáñez, R. L. Ocaña-de Jesús, I. Rojas-Puebla, J. R. Sánchez-Pale, P. García-Saucedo, L. R. Bernal-Martínez

{"title":"MICROBIOLOGICAL QUALITY OF LEAFY GREEN VEGETABLES GROWN IN THE TOLUCA VALLEY","authors":"A. T. Gutiérrez Ibáñez, R. L. Ocaña-de Jesús, I. Rojas-Puebla, J. R. Sánchez-Pale, P. García-Saucedo, L. R. Bernal-Martínez","doi":"10.47163/agrociencia.v56i6.2545","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i6.2545","url":null,"abstract":"The intake of fresh fruits and vegetables has increased in recent years, as have outbreaks of foodborne illnesses associated with these products. The risk of microbiological hazards in vegetables can occur from the field to the table. The main sources of contamination are agricultural soil and irrigation water, which can affect product quality and be a reservoir of foodborne pathogenic bacteria. This research analysed the microbiological quality of green leafy vegetable crops: spinach (Spinacia oleracea L.), lettuce (Lactuca sativa L.) and coriander (Coriandrum sativum L.), grown in the valley of Toluca. The presence of microorganisms indicating microbiological contamination (mesophilic bacteria, total coliforms, faecal coliforms and Escherichia coli, Salmonella and Listeria) was evaluated in plants, water and soil. Sampling, processing, isolation and bacterial identification were performed in accordance with Mexican Official Standards and the FDA Bacteriological Analytical Manual. The recovered bacteria were subjected to biochemical tests, serotyping and PCR. Microbial counts were present in 100 % of the samples tested. The spinach culture had higher recovery of mesophilic bacteria and total coliforms, while the lettuce culture presented higher values for the faecal coliform group. The results indicated higher microbiological contamination in water and soil > 250 CFU for mesophilic bacteria, total coliforms and faecal coliforms, respectively. The microbiological counts of the three cultures were found within the maximum limits established by Mexican regulations. However, the presence of faecal coliforms, which included E. coli bacteria of serotype O105 ab flagellar, compromises the quality of the product and poses a risk to the health of the consumer.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73553741","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

FORAGE YIELD AND COMPOSITION OF BLACK OAT IN MONOCULTURE AND IN ASSOCIATION WITH WINTER VETCH 单作黑燕麦的饲料产量和组成及与冬野豌豆的关系

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-10-05 DOI: 10.47163/agrociencia.v56i6.2405

Juan Daniel Jiménez, R. Améndola-Massiotti, E. García-Moya, J. Burgueño-Ferreira, R. Ramírez-Valverde, L. Miranda-Romero

{"title":"FORAGE YIELD AND COMPOSITION OF BLACK OAT IN MONOCULTURE AND IN ASSOCIATION WITH WINTER VETCH","authors":"Juan Daniel Jiménez, R. Améndola-Massiotti, E. García-Moya, J. Burgueño-Ferreira, R. Ramírez-Valverde, L. Miranda-Romero","doi":"10.47163/agrociencia.v56i6.2405","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i6.2405","url":null,"abstract":"Associated grass-legume pastures have advantages over grass monoculture; in order to evaluate them the association of black oat (Avena strigosa Schreb) with winter vetch (Vicia villosa Roth) was analysed. The objective of the study was to evaluate forage yield, the botanical, morphological, and chemical composition of black oat in monoculture and in association with winter vetch, at different crop heights and residual stubble heights. Eighteen treatments were evaluated in randomized complete blocks with divided plots. In large plots, the culture type (monoculture or association); and in small plots, nine harvest management options (combinations) of three crop heights (Ch: 40, 50 and 60 cm) and three residual stubble heights (Rsh: 8, 14 and 20 cm). Forage yield was higher (p ≤ 0.05) in Ch50-Rsh8, Ch60-Rsh8 and Ch60-Rsh14 during the second crop cycle, with an average 8555 kg DM ha-1. In monoculture and in association, more cuts were made (three to four) with Ch40-Rsh14 and Ch40-Rsh20 and fewer cuts (one to two) with Ch60-Rsh8, Ch60-Rsh14 and Ch60-Rsh20. Crude protein concentration was 19 % higher (p ≤ 0.05) in monoculture than in association (19.2 and 16.2 %); the highest concentrations (p ≤ 0.05) of crude protein were obtained in Ch40-Rsh8, Ch40-Rsh14 and Ch40-Rsh20 (average 20.5 %), and the lowest was recorded in Ch60-Rsh8 (13.2 %). The forage with the least neutral detergent fibre (p ≤ 0.05) was harvested in Ch40-Rsh8, Ch40-Rsh14 and Ch50-Rsh14 (average 43.4 %), and the highest (49.3 %) was obtained in Ch60-Rsh20. In monoculture and in association, a greater amount of forage was harvested, distributed in at least two harvests, with Ch of 50 and 60 cm in combination with 8 and 14 cm of Rsh. However, the forage did not have the best composition, due to higher concentrations of neutral detergent fibre and lower crude protein concentration.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"21 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81718417","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

EFFECT OF Lemna gibba AND Ulva lactuca ON HEALTH AND PRODUCTIVE PERFORMANCE IN JUVENILES OF NILE TILAPIA (Oreochromis niloticus) 长臂猿和绿叶鱼对尼罗罗非鱼幼鱼健康和生产性能的影响

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-09-29 DOI: 10.47163/agrociencia.v56i6.2497

Martha Elena Aguilera Morales, Cinthya Magaly Antonio-Cisneros, C. Flores-Ortíz

{"title":"EFFECT OF Lemna gibba AND Ulva lactuca ON HEALTH AND PRODUCTIVE PERFORMANCE IN JUVENILES OF NILE TILAPIA (Oreochromis niloticus)","authors":"Martha Elena Aguilera Morales, Cinthya Magaly Antonio-Cisneros, C. Flores-Ortíz","doi":"10.47163/agrociencia.v56i6.2497","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i6.2497","url":null,"abstract":"Currently, mannan-oligosaccharides (MOS) are added to the production costs of Nile tilapia to prevent and avoid diseases. An alternative are aquatic plants rich in biologically active compounds such as Lemna gibba, a freshwater macrophyte, and Ulva lactuca, a green seaweed, which have shown productive and economic efficiency as feed for livestock, poultry, and fish, but their effect as a functional ingredient has not been evaluated. The objective was to demonstrate that dietary supplementation of juvenile Nile tilapia (Oreochromis niloticus) with L. gibba and U. lactuca can have a beneficial effect on the health and productive performance of tilapia allowing to consider these supplements as functional ingredients such as mannan-oligosaccharides (MOS). The base diet was supplemented with L. gibba and U. lactuca at percentages 0, 10, 15 and 20 % (L0, L10, L15, L20; U0, U10, U15, U20; M0, M10, M15, M20) and compared to a mannan-oligosaccharide (MOS) control. Health parameters (hematological study, lysozyme and complement C3 activities) and productive performance (survival, S; final weight, FW; protein efficiency ratio, PER, and feed conversion factor, FCF) were evaluated. Statistical difference was found (p ≤ 0.05) among treatments and supplementation percentages. The U20 diet showed the greatest effect (p ≤ 0.05) on health parameters and L15 showed the best results (p ≤ 0.05) in productive performance. It is concluded that U. lactuca and L. gibba can be used as a functional ingredient at a proportion of 15 % to produce feed for Nile tilapia juveniles in order to promote health and growth.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"18 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85439742","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

Micropropagation of Agave (Agave potatorum Zucc.) through Direct Organo-genesis 龙舌兰(Agave potatorum Zucc.)直接器官发生的微繁殖

IF 0.3 4区农林科学

Agrociencia Pub Date : 2022-09-20 DOI: 10.47163/agrociencia.v56i6.2823

M. A. Ramírez-Mosqueda, Rocío G. Cárcamo-Corona, Daniel Aguilar-Jiménez, J. Bello-Bello

{"title":"Micropropagation of Agave (Agave potatorum Zucc.) through Direct Organo-genesis","authors":"M. A. Ramírez-Mosqueda, Rocío G. Cárcamo-Corona, Daniel Aguilar-Jiménez, J. Bello-Bello","doi":"10.47163/agrociencia.v56i6.2823","DOIUrl":"https://doi.org/10.47163/agrociencia.v56i6.2823","url":null,"abstract":"Populations of Agave potatorum Zucc. have been overexploited from their habitat for the commercial production of mezcal, a traditional Mexican liquor. For this species, micropropagation is the only method for cloning selected genotypes. The aim of this study was to establish an efficient protocol for the in-vitro propagation of A. potatorum by use of individual shoots. In the propagation stage, the interaction between different concentrations of the cytokinin benzylaminopurine (BAP: 0, 1.5, and 3.0 mg L–1)and the auxin indole acetic acid (IAA: 0, 1.5, and 3.0 mg L–1) was evaluated. For in-vitro rooting, the interaction between different auxin concentrations, namely naphthaleneacetic acid (NAA: 0, 1.5 and 3.0 mg L–1) and IAA (0, 1.5 and 3.0 mg L–1) was evaluated. In the propagation stage, the highest number of shoots was obtained with the combinations of 3.0 mg L–1 BAP + 3.0 mg L–1 IAA, 1.5 mg L–1 BAP + 3.0 mg L–1 IAA, and 3.0 mg L–1 BAP + 1.5 mg L–1 IAA, which yielded 9.87, 9.73, and 9.73 shoots per explant, respectively. In the rooting stage, the best shoot development was observed in the control treatment and when only 3.0 mg L–1 IAA was supplemented. Finally, after the rooting stage, the plantlets obtained were acclimatized and grown in the field, yielding a survival rate of 98-100%. In conclusion, this propagation protocol contributes to obtaining commercial propagules suitable for establishment in the field.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":"19 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74016460","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: 2