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991.
992.
Emanuell Felipe Silva Marcelo Augusto Soares Nathalia Ferreira Calazans Joana Lyra Vogeley Bruna Cáritas do Valle Roberta Soares Silvio Peixoto 《Aquaculture Research》2012,44(1):13-21
The effect of the addition of Bacillus probiotic during larvae and postlarvae culture of the white shrimp Litopenaeus vannamei was examined in three separate experiments: (I) Nauplius4‐5 to Zoea3, which were exposed to probiotic in the water (Pw), only in the microalgae (Pm), in the water and microalgae (Pwm) and a control with no probiotic (C); (II) Mysis1 to Mysis3, which were exposed to probiotic in the water (Pw), only in Artemia (Pa), in the water and Artemia (Pwa) and a control (C); (III) PL1 to PL10, which were exposed to similar treatments for mysis experiment. The use of probiotic Bacillus spp. resulted in an increase in the survival and growth of zoea and mysis phases, especially when the probiotic was added only in the water. For postlarvae, the use of the probiotic had no influence on the zootechnical parameters, however, there was a reduction in the count of presumptive Vibrio both for water and shrimp. 相似文献
993.
Jenniffer Hauschildt Dias Maria Amélia Pupin Gabriela Saloni Duarte Viviane Lopes Brair Cleber Jonas Carvalho de Paula Marco Antonio Paula de Sousa Ribrio Ivan Tavares Pereira Batista Joanna Maria Gonçalves Souza-Fabjan Maria Emília Franco Oliveira Jeferson Ferreira Fonseca 《Reproduction in domestic animals》2020,55(7):844-850
This study assessed the efficiency of cervical relaxation protocol using none, half or full dose (1.0 mg) of oestradiol benzoate in Dorper ewes subjected to non-surgical embryo recovery (NSER). Thirty-six pluriparous ewes received progestogen sponge (60 mg) for 9 days plus eCG administration (300 IU i.m.) 24 hr before sponge removal. Ewes were not mated and were randomly assigned to receive at 16 hr before NSER 37.5 µg d-cloprostenol i.m. and different doses of oestradiol benzoate: 0.0 mg (0EB group; n = 12); 0.5 mg (0.5EB group; n = 12) or 1.0 mg of oestradiol (1.0EB group, n = 12). All ewes received oxytocin (50 IU) i.v. 20 min before NSER, which was performed 8 days after sponge removal. Corpora lutea were counted by transrectal ultrasonography 24 hr before NSER. After procedure, the ewes were kept in natural breeding period to check their post-NSER fertility. NSER was performed in 91.7% (33/36) of the animals with overall fluid recovery efficiency over 97% (p > .05). The cervical transposing with Hegar dilator was longer (p < .05) in 0EB (4.2 ± 0.3 min) compared to 0.5EB (1.7 ± 0.3 min) and 1.0EB group (1.5 ± 0.3 min). The cervical transposing with mandrel/catheter was longer (p < .05) in 0EB (2.4 ± 0.5 min) than 1.0EB group (1.3 ± 0.5 min). Overall duration of uterine flushing was 25.4 min with structure recovery rate of 43.5%, with no difference among groups (p > .05). The post-NSER fertility was higher (p < .05) in 0.0EB (90%) than 0.5EB group (36.4%). In conclusion, NSER can be successfully performed in Dorper ewes by using a cervical relaxation protocol without oestradiol benzoate. 相似文献
994.
Marina Marrari Sergio R. Signorini Charles R. McClain Marcelo Pájaro Patricia Martos María Delia Viñas Jorge Hansen Roxana Dimauro Georgina Cepeda Claudio Buratti 《Fisheries Oceanography》2013,22(3):247-261
The mid‐shelf front (MSF) of the Buenos Aires province continental shelf in the Southwestern Atlantic Ocean plays a central role in the pelagic ecosystem of the region acting as the main spring reproductive area for the northern population of the Argentine anchovy Engraulis anchoita and supporting high concentrations of chlorophyll as well as zooplankton, the main food of anchovy. To investigate the influence of environmental variability on the reproductive success of E. anchoita, we analyzed a 13‐yr time series (1997–2009) of environmental data at MSF including chlorophyll dynamics, as well as zooplankton composition and abundance, ichthyoplankton distributions, and recruitment of E. anchoita. Spring chlorophyll concentrations showed high interannual variability and were mainly influenced by changes in water temperature and vertical stratification, which in turn control nutrient supply to the surface. Chlorophyll dynamics (magnitude, timing, and duration of the spring bloom) explained most of the variability observed in E. anchoita recruitment, most likely via fluctuations in the availability of adequate food for the larvae. Our results suggest that satellite ocean color products can be valuable tools for understanding variability in ecosystem dynamics and its effects on the recruitment of fish. 相似文献
995.
Monção Flávio Pinto Santana Pedro Felipe Júnior Vicente Ribeiro Rocha Ruas José Reinaldo Mendes Rigueira João Paulo Sampaio Borges Lucas Daniel Alcântara de Castro Menezes Gustavo Chamon Sousa Thais Eleonora Santos da Costa Maria Dulcinéia Oliveira Laura Lúcia Santos de Queiroz Fausto Expedito 《Tropical animal health and production》2020,52(1):141-149
Tropical Animal Health and Production - The quantitative feed restriction of lactating cows has been used in intensive production systems as a strategy to reduce production costs. However, the... 相似文献
996.
Marcelo F. Tognelli Elizabeth P. Anderson Luz F. Jimnez‐Segura Junior Chuctaya Luisa Chocano Javier A. Maldonado‐Ocampo Lina Mesa‐Salazar Jos I. Mojica Fernando M. Carvajal‐Vallejos Vanessa Correa Hernn Ortega Juan F. Rivadeneira Romero Paula Snchez‐Duarte Neil A. Cox Max Hidalgo Pedro Jimnez Prado Carlos A. Lasso Jaime Sarmiento Miguel A. Velsquez Francisco A. Villa‐Navarro 《水产资源保护:海洋与淡水生态系统》2019,29(7):1123-1132
997.
M. I. Abdo de la Parra L. E. Rodríguez Ibarra G. Velasco Blanco A. C. Puello‐Cruz B. González Rodríguez A. Ibarra‐Soto L. Ibarra Castro 《Journal of the World Aquaculture Society》2012,43(3):411-422
The scale‐up of spotted rose snapper, Lutjanus guttatus, larval rearing is described. Fertilized eggs (480,000) were obtained from a 1‐d harvest of a natural spawning captive broodstock acclimatized for 1 yr and 6 mo in two fiberglass tanks (18 m3). Fourteen hours after spawning, 89.6% of the collected eggs were floating, of which 96.2% were transparent with live embryos. Incubation at 25–26 C lasted 21 h, with 90.2 ± 2.1% hatching percentage of normal larvae. The percentage of viable larvae at 48 h after hatching was 79.7 ± 1.9%. Initial stocking density was 10.4 ± 1.0 larvae/L 2 days after hatching (d.p.h.). A total of 22,600 juveniles (1256 ± 170 juveniles/m3) were harvested from six 3‐m3 cylindrical fiberglass tanks. Average survival was 12.1 ± 1.1%. Final mean length and weight were 5.5 ± 0.05 cm and 2.24 ± 0.04 g, respectively. Growth expressed in total length was TL = 2.1476e0.0543t (R2 = 0.9911). Final mean biomass and condition factor were 2.8 kg/m3, 12.3% and 1.346. General length‐weight ratio was W = 0.05460 LT2.2306. 相似文献
998.
Ana Pérez de Castro José Miguel Blanca María José Díez Fernando Nuez Viñals 《European journal of plant pathology / European Foundation for Plant Pathology》2007,117(4):347-356
During the process of breeding programmes, several resistance genes have been introgressed into tomato (Solanum lycopersicum) cultivars from different wild tomato relatives. A number of these resistance genes have been mapped to chromosome 6. Among
them, Ty-1 and Mi, which confer resistance to Tomato yellow leaf curl disease and to Meloidogyne spp., respectively, are in most cases incorporated in commercial hybrids. Several molecular markers tightly linked to Mi have been identified. This study was conducted in order to find an informative molecular marker linked to Ty-1. Six markers mapped in the same region as Ty-1 were analysed in plant material carrying different combinations of Ty-1 and Mi alleles. Three of the six markers revealed polymorphism among the assayed accessions. One allele of JB-1 marker showed association
with Ty-1. Furthermore, the presence of Mi did not interfere with the results. The analysis of several accessions of wild tomato relatives with the three polymorphic
markers allowed the establishment of the origin of the alleles found in cultivated plant material, showing that introgressions
from S. lycopersicum, S. pimpinellifolium and S. habrochaites will not interfere with the results of this marker which tags Ty-1. Furthermore this analysis enabled the location of CT21, the RFLP marker from which JB-1 was designed. 相似文献
999.
1000.
Pires Teixeira Weslen Fabricio de Oliveira Márcio Leite de Faria Peres Pedro Henrique Miranda Oliveira Bruno César Nagata Walter Bertequini da Silva Vieira Dielson de Andrade Junior Anassilton Moreira Domingos Ferrari Elis Barbanti Duarte José Maurício Vasconcelos Meireles Marcelo Zanetti Lopes Welber Daniel Saraiva Bresciani Katia Denise 《Veterinary research communications》2022,46(1):49-58
Veterinary Research Communications - We analyzed Cryptosporidium spp. in fecal samples of wild cervids (Ozotoceros bezoarticus, Blastocerus dichotomus, Mazama nana, Mazama americana, and Mazama... 相似文献