全文获取类型
收费全文 | 87篇 |
免费 | 8篇 |
专业分类
林业 | 7篇 |
农学 | 1篇 |
20篇 | |
综合类 | 2篇 |
农作物 | 11篇 |
水产渔业 | 12篇 |
畜牧兽医 | 29篇 |
园艺 | 1篇 |
植物保护 | 12篇 |
出版年
2022年 | 4篇 |
2021年 | 3篇 |
2020年 | 1篇 |
2019年 | 12篇 |
2018年 | 9篇 |
2017年 | 6篇 |
2016年 | 5篇 |
2015年 | 4篇 |
2014年 | 4篇 |
2013年 | 4篇 |
2012年 | 3篇 |
2011年 | 8篇 |
2010年 | 3篇 |
2009年 | 4篇 |
2008年 | 8篇 |
2007年 | 2篇 |
2006年 | 4篇 |
2005年 | 3篇 |
2004年 | 1篇 |
2003年 | 3篇 |
2002年 | 1篇 |
2001年 | 2篇 |
2000年 | 1篇 |
排序方式: 共有95条查询结果,搜索用时 62 毫秒
71.
Gabriela Salim de Castro Rafael Deminice Livia Maria Cordeiro Sim?es-Ambrosio Philip C. Calder Alceu A. Jord?o Helio Vannucchi 《Marine drugs》2015,13(4):1864-1881
This study aimed to examine the benefits of different amounts of omega-3 (n-3) polyunsaturated fatty acids from fish oil (FO) on lipid metabolism, insulin resistance and gene expression in rats fed a high-fructose diet. Male Wistar rats were separated into two groups: Control (C, n = 6) and Fructose (Fr, n = 32), the latter receiving a diet containing 63% by weight fructose for 60 days. After this period, 24 animals from Fr group were allocated to three groups: FrFO2 (n = 8) receiving 63% fructose and 2% FO plus 5% soybean oil; FrFO5 (n = 8) receiving 63% fructose and 5% FO plus 2% soybean oil; and FrFO7 (n = 8) receiving 63% fructose and 7% FO. Animals were fed these diets for 30 days. Fructose led to an increase in liver weight, hepatic and serum triacylglycerol, serum alanine aminotransferase and HOMA1-IR index. These alterations were reversed by 5% and 7% FO. FO had a dose-dependent effect on expression of genes related to hepatic β-oxidation (increased) and hepatic lipogenesis (decreased). The group receiving the highest FO amount had increased markers of oxidative stress. It is concluded that n-3 fatty acids may be able to reverse the adverse metabolic effects induced by a high fructose diet. 相似文献
72.
Gisele Azevedo Picanço Dutra Almy Junior Cordeiro de Carvalho Marta Simone Mendonça Freitas Jalille Amim Altoé Freitas Cláudia Sales Marinho 《Journal of plant nutrition》2016,39(6):828-834
An experiment was conducted in Campos dos Goytacazes in the State of Rio de Janeiro, Brazil, in order to evaluate the applying effect of nitrogen and cattle manure doses on sweet passion fruit yield and quality. The experimental outline used was complete block, in a 5 × 2 factorial arrangement, five nitrogen doses (0, 50, 150, 250 and 350g plant?1 year?1) and two types of organic fertilization (with and without cattle manure), with 4 replications. Sweet passion fruit yield presented an increase of 44.4% due to the application of the best nitrogen doses in comparison with the treatment which did not receive nitrogen fertilization. The treatments that did not receive cattle manure presented higher average weight, diameter and thickness of the fruit skin, while the addition of cattle manure presented greater juice concentration and higher percentage of seeds in sweet passion fruit fruits. The increase in nitrogen doses allowed an increase in concentration and total titratable acidity of the fruits. 相似文献
73.
de Souza Wilza Carla Oliveira do Nascimento Luciana Cordeiro Vieira Daniele Lavra dos Santos Taciana Silva de Assis Filho Francisco Miguel 《European journal of plant pathology / European Foundation for Plant Pathology》2015,142(3):481-488
European Journal of Plant Pathology - Black rot of pineapple caused by the fungus Chalara paradoxa is considered an aggressive and difficult disease to control. The use of natural products has been... 相似文献
74.
Yvens E.M. Cordeiro Hugo A. Pinheiro Benedito G. dos Santos Filho Sofia S. Corrêa Joo R.R. e Silva Moacyr B. Dias-Filho 《Forest Ecology and Management》2009,258(7):1449-1455
Young mahogany (Swietenia macrophylla King) plants were grown under either well-watered (pre-dawn leaf water potential, Ψpd, ca. −0.40 MPa) or drought (Ψpd, ca. −3.52 MPa) conditions to examine some physiological strategies that allow the maintenance of leaf turgor. In well-watered plants, stomatal conductance (gs) was nearly constant (440 mmol m−2 s−1) between 7:00 and 13:00 h. This was accomplished by significant increases in transpiration (E) and apparent total hydraulic conductance (KT), in which averages were higher at 13:00 h. From 13:00 to 17:00 h, gs, E, and KT decreased sharply, reaching their lower values at 17:00 h. In these plants, significant increases in height (116%), stem diameter (50%) and leaf area (200%) were registered over the experimental period (20 days). Analyses of linear regression between gs or E and leaf-to-air vapor pressure deficit (Δw) were not significant. In water-stressed plants, gs and E were higher at 7:00 h and lower from 9:00 to 17:00 h, while KT was higher in early morning (7:00 h) and in late afternoon (17:00 h) than between 9:00 and 15:00 h. Moreover, both gs and E decreased potentially (P < 0.001) with the diurnal increases on Δw. Drought also decreased leaf and leaflet numbers and reduced total leaf area, but had no effect on stem height and diameter. Leaf proline was higher (ca. 400%, between 13:00 and 15:00 h) in water-stressed plants, suggesting osmotic adjustment under drought. Twelve hours after resumption of irrigation, Ψpd was similar (P > 0.05) between well-watered and drought-stressed plants, suggesting an ability of plants to recover turgor after stress cessation. Altogether, our data support the hypothesis that young mahogany plants have the ability to satisfactorily tolerate or postpone drought. 相似文献
75.
Essential oil of Aloysia triphylla in Nile tilapia: anaesthesia,stress parameters and sensory evaluation of fillets
下载免费PDF全文
![点击此处可从《Aquaculture Research》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Rafael Rivas Teixeira Renilde Cordeiro de Souza Artur Cedraz Sena Bernardo Baldisserotto Berta Maria Heinzmann Ricardo David Couto Carlos Eduardo Copatti 《Aquaculture Research》2017,48(7):3383-3392
The optimum concentration of anaesthetic used to facilitate fish handling can be determined based on induction and recovery time, among other factors. This study aimed to evaluate the effectiveness of the essential oil of Aloysia triphylla (EOAT) as an anaesthetic in the handling of Nile tilapia juveniles. Nile tilapias exemplars were immersed at 0 (control group), 10, 20, 30, 40, 80, 150, 300 and 450 μL L?1 EOAT to evaluate sedation, anaesthesia and recovery time. The stress response was evaluated by the determination of plasma glucose, cortisol, lactate and paraoxonase levels in anaesthetized (300 μL L?1 EOAT) and non‐anaesthetized fish. Fillets from both groups were evaluated for organoleptic characteristics (taste and odour). Concentrations of 80–450 μL L?1 EOAT were effective in inducing anaesthesia. There was a significant reduction in plasma cortisol levels one hour after handling in individuals anaesthetized with 300 μL L?1 EOAT compared to the control group. Tasters did not detect differences in fillet taste and odour between fish exposed and not exposed to EOAT. A concentration of 300 μL L?1 EOAT is recommended for handling Nile tilapia because it presents good anaesthetic induction and recovery times, causes a reduction in plasma cortisol levels one hour after handling and does not affect the taste or odour of the fillets. 相似文献
76.
Renilde Cordeiro de Souza Elizngela Maria de Souza Mateus Matiuzzi da Costa Jos Fernando Bibiano Melo Bernardo Baldisserotto Carlos Eduardo Copatti 《Aquaculture Nutrition》2019,25(1):39-45
The objective of this study was to evaluate the effect of dietary addition of the essential oil from Lippia alba (EOLA) on growth performance, biochemical and haematological variables and survival after Aeromonas spp. infection of Nile tilapia juveniles (Oreochromis niloticus). Five diets were evaluated with increasing levels of EOLA (0.0 control; 0.25; 0.50; 1.0; and 2.0 ml/kg diet). After 45 days of feeding, the fish were infected with Aeromonas spp. followed by a 14‐day period of observation. There was no mortality during growth assessment. The addition of 2.0 ml EOLA/kg diet improved feed conversion ratio and condition factor and increased lysozyme activity and haematocrit (Hct), and decreased plasma globulin levels compared to the control group. The survival of fish infected with Aeromonas spp. was higher in those fed with 2.0 ml EOLA/kg diet than in fish fed with 0.0–0.5 ml EOLA/kg diet. We concluded that the inclusion of 2.0 ml EOLA/kg diet is recommended for Nile tilapia juveniles, because it improved feed conversion, Hct and immunological activity, did not provoke metabolic changes, and increased survival after Aeromonas spp. infection. 相似文献
77.
Fabrício Menezes Ramos Higo Andrade Abe Carlos Alberto Martins Cordeiro Luis Andr Luz Barbas Paulo Csar Falanghe Carneiro Alexandre Nizio Maria Rodrigo Yudi Fujimoto 《Aquaculture Research》2019,50(9):2437-2443
Due to the economic potential of Hypancistrus zebra in the ornamental fish market and its current classification as an endangered species in its natural occurrence sites, the present study sought to determine a suitable feed management strategy and stocking density to allow for an adequate captivity maintenance of this fish species. Three experiments were conducted as follows: (1) feed preference (artemia Artemia sp., shrimp Litopenaeus vannamei, fish Cynoscion spp. or mussel Perna perna); (2) determination of feeding rate (5% and 10% live weight day?1) and frequency (1, 2 or 3 meals. Day?1); and (3) evaluation of stocking density (0.25, 0.50, 1.00 and 2.00 g/L). Zebra pleco did not present the characteristic buccal scraping behaviour on the feed, commonly seen in other Loricariids. Artemia was the preferred diet followed by fish, shrimp and mussels. The frequency of two daily meals and the feeding rate of 10% live weight day?1 allowed for an improved zootechnical performance. Zebra pleco showed enhanced specific growth rate at the density of 2 g/L. Our results suggest that, to improve the zebra pleco rearing conditions, it should be maintained at a density of 2 g/L, fed two daily meals at a feeding rate of 10% live weight day?1. These findings correspond to useful information for an adequate management of this species and could assist in the supply of healthy specimens to the ornamental fish market as well for the restocking of declining wild populations. 相似文献
78.
D'arc Felicio J Rossi MH Park HR Gonçalez E Braggio MM David JM Cordeiro I 《Fitoterapia》2001,72(4):453-455
A new flavone dimer, 3-hydroxy-4',5,7-trimethoxyflavone-(6-->8")-3"-hydroxy-3"',4"', 5",7"-tetramethoxyflavone, together with amenthoflavone, have been isolated from the leaves of Ouratea multiflora. Its structure was established by spectroscopic methods, including two-dimensional NMR spectroscopy. 相似文献
79.
dos Santos Milenna Alves Cordeiro Amanda Estefanir da Silva Dielen Janaira Menezes Queiroz Mario Adriano Avila Gois Glayciane Costa Menezes Daniel Ribeiro de Moraes Salete Alves Voltolini Tadeu Vinhas Busato Karina Costa de Souza Rodrigues Rafael Torres 《Tropical animal health and production》2019,51(8):2465-2471
Tropical Animal Health and Production - Bean meal (Phaseolus vulgaris L.) may be a viable alternative in ruminant feeding, mainly as a source of protein due to its high crude protein content. The... 相似文献
80.
Cabral Bárbara Bortolin Raul Hernandes Gonçalves Tays Amanda Felisberto Maciel Priscilla Maria Pereira de Arruda Alinne Villar de Carvalho Thais Gomes Abboud Kahlile Youssef Alves Jovelina Samara Ferreira Cordeiro Lucimara M. C. de Medeiros Isac Almeida de Rezende Adriana Augusto Zucolotto Silvana Maria 《Plant foods for human nutrition (Dordrecht, Netherlands)》2021,76(4):466-471
Plant Foods for Human Nutrition - Passiflora edulis fo. flavicarpa (Passifloraceae) is popularly known as yellow passion fruit and its fruit peels are considered a rich by-product in bioactive... 相似文献