A meta-analytic review of monoterpene for fish anaesthesia     

Luís Félix  Raquel Vieira  Sandra M. Monteiro  Carlos Venâncio 《Fish and Fisheries》2023,24(3):367-380

The use of anaesthetic agents has been increasing to address the welfare needs of different fish species in scientific and aquaculture practices. MS-222 is the most used synthetic anaesthetic but some limitations and side effects have been reported. Natural substances have been used as potential substitutes with clove oil playing an important role due to its eugenol content. Yet, other monoterpenes have shown anaesthetic properties in different fish species. As such, a quantitative assessment has been conducted to explicitly relate and summarise the use of monoterpenes with described anaesthetic properties in fish. A combined PubMed, Web of Science, Scopus, PubMed Central and Europe PMC electronic database search was performed, from January 2002 to August 2022, following the PRISMA guidelines. Out of 1555 articles retrieved from the literature search, 30 English reports met the criteria for inclusion in the meta-analysis through a generic inverse-variance method (random-effects model) and according to the fish age. The findings show a total of 10 different monoterpenes with high homogeneity and effectiveness in inducing anaesthesia and recovery according to the fish anaesthetic criteria. Further subgroup analysis showed these effects were independent of fish age. Meta-regression of the included studies revealed an inverse linear association between anaesthesia induction and recovery time and water bath temperature while no further correlation was found with other confounding factors (body weight, water pH and dissolved oxygen levels). Although further studies will be required, this meta-analysis provides robust evidence that different monoterpenes serve as an attractive and effective alternative for fish anaesthesia although water bath temperature also played an important role in anaesthesia outcome.  相似文献   

Bioactivity of extracts and isolated compounds from Vitex polygama (Verbenaceae) and Siphoneugena densiflora (Myrtaceae) against Spodoptera frugiperda (Lepidoptera: Noctuidae)     

Gallo MB  Rocha WC  da Cunha US  Diogo FA  da Silva FC  Vieira PC  Vendramim JD  Fernandes JB  da Silva MF  Batista-Pereira LG 《Pest management science》2006,62(11):1072-1081

The effects of crude extracts, fractions and isolated compounds from Vitex polygama Cham. and Siphoneugena densiflora Berg were evaluated on the development of Spodoptera frugiperda JE Smith, a destructive insect pest of corn and several other crops. The extracts and fractions were incorporated into an artificial diet at 1 mg g(-1) and offered to the insect during its larval stage. Length and viability of larval and pupal stages as well as pupal weight were assessed. Isolated compounds were tested through superficial contamination of the diet at 0.1 mg g(-1). Weight and viability of ten-day-old larvae were determined. Methanolic and hydroalcoholic S. densiflora extracts caused 100% larval mortality, while leaf and fruit hydroalcoholic extracts from V. polygama were the most active. Among the isolated compounds, flavonoids presented the best insecticidal results, and tannins the best larval growth inhibition.  相似文献   

Soybean molasses as an organic carbon source in the farming of Litopenaeus vannamei (Boone, 1931) in a biofloc system          下载免费PDF全文

Carlos Manoel do Espírito Santo  Isabela Claudiana Pinheiro  Gabriel Fernandes Alves de Jesus  José Luiz Pedreira Mouriño  Felipe do Nascimento Vieira  Walter Quadros Seiffert 《Aquaculture Research》2017,48(4):1827-1835

Soybean molasses was evaluated as a partial replacement for sugarcane molasses as a carbon source for biofloc development in the superintensive culture of Pacific white shrimp (Litopenaeus vannamei). A 50‐day study was conducted with juvenile (3.2 g) shrimp stocked in 16 800 L tanks at a stocking density of 250 shrimp m^?3. Control of total ammonia concentration was performed by the addition of combined mixtures of soybean and sugarcane molasses to the culture water. Three different molasses treatments were evaluated using different soybean‐to‐sugarcane molasses ratios: 15–85%, 38–62% and 60–40% respectively. The control group was treated only with sugarcane molasses. Water quality, chlorophyll a concentration, heterotrophic bacterial load, Vibrio spp. concentration and zootechnical indexes were all evaluated. Total ammonia concentration was controlled by heterotrophic and chemotrophic pathways. Biofloc formation, as quantified by measuring the total suspended solids, was not altered. The Vibrio spp. concentration showed a significant reduction in treatments with soybean‐to‐sugarcane molasses ratios of 38–62% and 60–40%. All combined mixtures of soybean and sugarcane molasses could maintain water quality and productivity in the superintensive culture of L. vannamei using the biofloc system. Thus, the potential use of a residue from agroindustry as a carbon source in a biofloc culture is demonstrated.  相似文献   

Mineral salt intake effects on faecal-N concentration and the volume and composition of beef cattle urine     

da Silva Cardoso  Abmael  José Neto  Antônio  Azenha  Mariane Vieira  Morgado  Eliane Silva  Brito  Liziane de Figueiredo  Janusckiewicz  Estela Rossetto  Berchielli  Telma Terezinha  Reis  Ricardo Andrade  Ruggieri  Ana Cláudia 《Tropical animal health and production》2019,51(1):171-177

The effect of mineral salts on water ingestion and urine volume in cattle has been extensively studied. However, recently, this effect has been investigated as a potential mitigator of environmental aspects related to the nitrogen (N) cycle, such as nitrate (NO₃^?) lixiviation, ammonia (NH₃) volatilisation, and nitrous oxide (N₂O) emissions. The effect of mineral salts, particularly sodium chloride (NaCl), on urine-N concentration, urine volume, the proportion of N compounds in the urine, and faecal-N concentration has not yet been explored in field conditions with respect to environmental aspects of beef cattle production. The present study investigated the effect of dietary mineral salt rates on these parameters. A Latin square (5?×?5) experimental design was utilised with five concentrations of mineral salts in the diet: 0.0, 2.0, 4.0, 6.0, and 8.0 g based on dry matter (DM) ingestion (g/kg DM). The nitrogen concentration in the urine and urine volume increased linearly. The total N excreted (g/day) via urine did not vary with increasing mineral salt concentrations. When evaluated, the N compounds of urine (urea-N, allantoin-N, and hippuric acid-N) also reacted to the increased mineral salt concentrations, while creatinine-N did not. Urea-N, allantoin-N, and hippuric acid-N linearly increased their proportions in total N-urine. The N concentration in faeces was not affected by mineral salt concentrations. The urine volume, concentration of N, and proportion of N compounds in the urine affected N₂O emissions and NH₃ volatilisation. Therefore, mineral salt utilisation may be an option for mitigating N pollution from beef cattle, especially for grasslands in tropical countries.

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Intake,digestibility and metabolism in sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)     

Maciel  Laura Priscila Araújo Amaro  de Carvalho  Francisco Fernando Ramos  Batista  Ângela Maria Vieira  Guim  Adriana  do Vale Maciel  Michel  Cardoso  Daniel Barros  de Lima Júnior  Dorgival Morais 《Tropical animal health and production》2019,51(6):1717-1723

Tropical Animal Health and Production - The objective of this study was to evaluate the effect of the substitution of Tifton 85 hay (Cynodon spp.) with spineless cactus (Nopalea cochenillifera) on...  相似文献   

Ingestive behaviour of steers grazing Brachiaria brizantha cultivar Marandu and in feedlot in Brazil     

de Souza  Sinvaldo Oliveira  Silva  Robério Rodrigues  da Silva  Fabiano Ferreira  de Carvalho  Gleidson Giordano Pinto  da Silva  Ana Paula Gomes  da Silva  João Wilian Dias  Santos  Laize Vieira 《Tropical animal health and production》2019,51(8):2161-2166

Tropical Animal Health and Production - The objective of this study was to evaluate the ingestive behaviour of steers grazing Brachiaria brizantha cv. Marandu and in feedlot regimen in Brazil....  相似文献   

Energy to protein ratios in supplements for grazing heifers in the rainy season     

dos Santos  Alyce Raiana Monteiro  Cabral  Carla Heloísa Avelino  Cabral  Carlos Eduardo Avelino  de Barros  Lívia Vieira  de Barros  Jackelliny Melo  Cabral  Welton Batista  Dias  Milene Rodrigues 《Tropical animal health and production》2019,51(8):2395-2403

Tropical Animal Health and Production - This study evaluated the effect of energy and protein supplementation on the nutritional characteristics, ingestive behavior, and productive performance in...  相似文献   

Inclusion of licuri meal in the diet of pasture dairy cows     

Costa  Evely Giovanna Leite  da Silva  Fabiano Ferreira  Silva  Robério Rodrigues  Porto  Antonio Ferraz  Santiago  Bismarck Moreira  Rocha  Leone Campos  Cruz  Aline Gonçalves  Guedes  Anna Caroline Ferreira  Neto  Teotônio Martins  Vieira  Edvaldo Alves 《Tropical animal health and production》2019,51(8):2505-2511

Tropical Animal Health and Production - The objective of this study was to evaluate the inclusion of increasing levels of licuri meal as a substitute for soybean bran in the diet of pasture-based...  相似文献   

Effect of l‐glutamic acid supplementation on performance and nitrogen balance of broilers fed low protein diets          下载免费PDF全文

R. M. Bezerra  F. G. P. Costa  P. E. N. Givisiez  E. R. Freitas  C. C. Goulart  R. A. Santos  J. G. Souza  P. A. Brandão  M. R. Lima  M. L. Melo  V. P. Rodrigues  E. T. Nogueira  D. V. G. Vieira 《Journal of animal physiology and animal nutrition》2016,100(3):590-600

The aim of this study was to evaluate the effect of protein reduction and supplementation of l ‐glutamic acid in male broiler diets. A total of 648 chicks of the Cobb 500 strain were distributed in a completely randomized design with six treatments and six replications with eighteen birds per experimental unit. The study comprised pre‐starter (1–7 days), starter (8–21 days), growth (22–35 days) and final (36–45 days) phases. The first treatment consisted of a control diet formulated according to the requirements of essential amino acids for each rearing phase. The second and third treatments had crude protein (CP) reduced by 1.8 and 3.6 percentage points (pp) in relation to the control diet respectively. In the fourth treatment, l ‐glutamic acid was added to provide the same glutamate level as the control diet, and in the last two treatments, the broilers were supplemented with 1 and 2 pp of glutamate above that of the control diet respectively. The reduction in CP decreased the performance of broilers and the supplementation of l ‐glutamic acid did not influence performance when supplied in the diets with excess of glutamate. The lowest excreted nitrogen values were observed in the control diet, and treatments 2 and 3, respectively, in comparison with treatments with the use of l ‐glutamic acid (5 and 6). Retention efficiency of nitrogen was better in the control diet and in the treatment with a reduction of 1.8 pp of CP. It was verified that the serum uric acid level decreased with the CP reduction. A reduction in CP levels of up to 21.3%, 18.8%, 18.32% and 17.57% is recommended in phases from 1 to 7, 8 to 21, 22 to 35 and at 36 to 42 days, respectively, with a level of glutamate at 5.32%, 4.73%, 4.57%, 4.38%, also in these phases.  相似文献   

Does supplementation of beef calves by creep feeding systems influence milk production and body condition of the dams?     

Sidnei Antônio Lopes  Mário Fonseca Paulino  Edenio Detmann  Ériton Egídio Lisboa Valente  Lívia Vieira de Barros  Luciana Navajas Rennó  Sebastião de Campos Valadares Filho  Leandro Soares Martins 《Tropical animal health and production》2016,48(6):1241-1246

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