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111.
112.
Grazyella Massako Yoshida José Manuel Yáñez Carlos Antonio Lopes de Oliveira Ricardo Pereira Ribeiro Jean Paul Lhorente Sandra Aidar de Queiroz Roberto Carvalheiro 《Aquaculture Research》2017,48(11):5490-5497
An algorithm to perform mate selection in aquaculture breeding using a computational optimization procedure called “differential evolution” (DE) was applied under optimum contribution selection and mate selection scenarios, to assess its efficiency in maximizing the genetic merit while controlling inbreeding. Real aquaculture data sets with 8,782 Nile tilapias from five generations and 79,144 coho salmon from eight generations were used to optimize objective functions accounting for coancestry of parents and expected genetic merit and inbreeding of the future progeny. The mate selection results were compared with those from the realized scenario (real mates), truncation selection and optimum contribution selection method. Mate selection allowed reducing inbreeding up to 73% for Nile tilapia, compared with truncation selection, and up to 20% for coho salmon, compared with realized scenario. There was evidence that mate selection outperformed optimum contribution selection followed by minimum inbreeding mating in controlling inbreeding under the same expected genetic gain. The developed algorithm was computationally efficient in maximizing the objective functions and flexible for practical application in aquaculture breeding. 相似文献
113.
Avila Neto Roberto Costa de Souza Pablo Mazzuco Rubert Jaine Seibt Tiago André Thomasi Rosana Marzari Melo Adriano Arrué Alves Marcelo Plada da Rosa Ulguim André 《Journal of Crop Science and Biotechnology》2023,26(2):161-166
Journal of Crop Science and Biotechnology - Herbicides belonging to the chemical group imidazolinones and the quinclorac herbicide are important to control weeds in flooded rice. The objective of... 相似文献
114.
Evaluation of the sexual dimorphism in Mangalarga Marchador horses using discriminant analysis 总被引:1,自引:0,他引:1
Luís Fernando Batista Pinto Fernando Queiroz de Almeida Clia Raquel Quirino Pedro Cezar Nehme de Azevedo Grasiele Coelho Cabral Edson Mauro Santos Anderson Corassa 《Livestock Science》2008,119(1-3):161-166
This study used discriminant analysis to evaluate body measures and sexual dimorphism in Mangalarga Marchador horses. Discriminant analysis is a multivariate method that generates functions to classify animals using a prior criterion. In this study a prior criterion is male or female. The study analyzed 25 linear and 11 angular measures obtained from 25 stallions and 56 mares registered with the Mangalarga Marchador Brazilian Breeders Association. Knee girth, cannon girth, chest width, chest girth, back-loin length, hip width, distance from elbow to knee, hind limb hoof length, head width, shoulder length, and body length were found to be linear measures that provided evidence of sexual dimorphism. Angular measures with evidence of sexual dimorphism were shoulder–humerus, metacarpal–phalanx, coxae–femur, and femur–tibial angles. Stallions were larger than mares for almost all linear measures, except for back-loin length, hip width, and distance from elbow to knee. Shoulder–humerus and coxal–femur angles were larger in mares, while metacarpal–phalanx and femur–tibial angles were larger in stallions. Using linear measures, two mares were classified as stallions and three stallions were classified as mares. For angular measures, two other mares were classified as stallions and three other stallions were classified as mares. The discriminant functions can be useful for the selection of horses and to avoid registration of animals not meeting the phenotypic standards of the breed association. 相似文献
115.
In this report, we describe Henneguya arapaima n. sp., a parasite of the gill arch and gall bladder of Arapaima gigas (pirarucu) collected in the Araguaia River, in the municipality of Nova Crixás, Goiás State, central Brazil. The plasmodia were white, round or ellipsoidal and measured 200-600mum. Parasite development was asynchronous and the mature spores were fusiform and had smooth wall. The spores measurements were (range, with means+/-S.D. in parentheses): total length-48.4-53.1mum (51.6+/-3.4mum), body length-13.5-15.2mum (14.2+/-0.8mum), body width-5.1-6.1mum (5.7+/-0.5mum), body thickness-4.7-5.3mum (4.9+/-0.2mum) and caudal process length-38.0-41.2mum (38.3+/-2.9mum). The polar capsules were elongated and of unequal size, with lengths of 6.3-6.8mum (6.5+/-0.2) and 6.2-6.6mum (6.3+/-0.1) for the longest and shortest axes, respectively. Capsule width was 1.4-1.6mum (1.5+/-0.1). Histological analysis showed that the plasmodia occurred in the tunica adventitia of the gall bladder and were delimited by a thin capsule of connective tissue. In the gill arch, the plasmodia were also surrounded by connective tissue similar to the endomesium of striated skeletal muscle cells. Sixty-five juvenile specimens of A. gigas weighing 1.0-25.0kg were examined, 17 (26.1%) of which were infected. Of these, 14 (82.3%) had cysts in the gall bladder, two (11.7%) had cysts in the gill arch and only one (5.9%) had cysts in both organs. When the fish were grouped by weight, the prevalence of infection in fish weighing up to 10.0kg (20.7%) was significantly lower than in fish weighing 10.1-25.0kg (50%) (G=3.93; d.f.=1; p<0.05). 相似文献
116.
Antonio Cezar de Oliveira Dearo DVSc Carmen Esther Santos Grumadas DVSc Peter Reichmann DVSc Gustavo Rodrigues Queiroz DVM Marilu Constantino Max DVM Mariana Cosenza DVM 《Journal of Equine Veterinary Science》2008,28(1):34-39
A four-year-old Appaloosa brood mare was referred for evaluation of a colic episode of 24 hours' duration. Physical examination revealed a distended cecum filled predominantly with fluid. A tentative diagnosis of cecal dysfunction was determined, and surgical intervention was performed by means of typhlotomy and ileocolostomy techniques through a complete bypass of the cecum. Postanaesthetic myopathy and incisional infection developed as postoperative complications. The mare was discharged 13 days after surgery. Follow-up information obtained from the owner and referring veterinarian 4 months after discharge revealed full recovery of the mare. 相似文献
117.
Maria V. MAZZAMUTO Andrea GALIMBERTI Giacomo CREMONESI Benoît PISANU Jean‐Louis CHAPUIS Jan STUYCK Giovanni AMORI Haijun SU Gaetano ALOISE Damiano G. PREATONI Lucas A. WAUTERS Maurizio CASIRAGHI Adriano MARTINOLI 《Integrative zoology》2016,11(3):214-228
Integrative taxonomy, a multi‐disciplinary approach adding modern techniques to traditional morphology‐based methods (e.g. molecular and morphological criteria), can play an important role in bioinvasion research to identify introduced taxa, discover pathways of introduction and inform authorities to control and prevent future introductions. The present study is the first on introduced populations of Callosciurus, Asiatic tree squirrels, known as potentially invasive species in Europe (Italy, Belgium and France). We combined molecular (mitochondrial DNA markers: CoxI, D‐loop) and morphometric analysis on skulls, comparing them to the widest morphological and molecular datasets ever assembled for Callosciurus. Squirrels collected in Italy and Belgium share the same haplotypes and skull characteristics, but are conspicuously different from the French population in Antibes. Genetic data revealed close similarity between French squirrels and Pallas's squirrels, Callosciurus erythraeus, from Taiwan, China. Italian and Belgian squirrels formed an independent taxonomic lineage in genetic analyses, whose taxonomic rank needs further investigation. The morphological and morphometric characteristics of these 2 populations are, however, similar to known specimens assigned to Callosciurus erythraeus. These results may indicate a common origin for the populations found in Belgium and Italy. In contrast, French specimens suggest an independent introduction event of squirrels originating from Asia. 相似文献
118.
da Matta CB de Souza ET de Queiroz AC de Lira DP de Araújo MV Cavalcante-Silva LH de Miranda GE de Araújo-Júnior JX Barbosa-Filho JM de Oliveira Santos BV Alexandre-Moreira MS 《Marine drugs》2011,9(3):307-318
Marine natural products have been the focus of discovery for new products of chemical and pharmacological interest. The aim of this study was to evaluate the antinociceptive activity of the methanolic (ME), acetate (AE), hexanic (HE) and chloroform (CE) extracts obtained from Caulerpa mexicana, and ME, CE and HE obtained from Caulerpa sertularioides. These marine algae are found all over the world, mainly in tropical regions. Models such as the writhing test, the hot plate test and formalin-induced nociception test were used to evaluate antinociceptive activity in laboratory mice. In the writhing test, all the extracts were administered orally at a concentration of 100 mg/kg, and induced high peripheral antinociceptive activity, with a reduction in the nociception induced by acetic acid above 65%. In the hot plate test, treatment with extracts from C. sertularioides (100 mg/kg, p.o.) did not significantly increase the latency of response, although the ME, AE and HE from C. mexicana showed activity in this model. This result suggests that these extracts exhibit antinociceptive activity. In the formalin test, it was observed that ME, AE and HE obtained from C. mexicana reduced the effects of formalin in both phases. On the other hand only CE from C. sertularioides induced significant inhibition of the nociceptive response in the first phase. To better assess the potential anti-inflammatory activity of the extracts, the carrageenan-induced peritonitis test was used to test Caulerpa spp. extracts on cell migration into the peritoneal cavity. In this assay, all extracts evaluated were able to significantly inhibit leukocyte migration into the peritoneal cavity in comparison with carrageenan. These data demonstrate that extracts from Caulerpa species elicit pronounced antinociceptive and anti-inflamatory activity against several nociception models. However, pharmacological and chemical studies are continuing in order to characterize the mechanism(s) responsible for the antinociceptive action and also to identify the active principles present in the Caulerpa species. 相似文献
119.
Tiago W.P. Mineo Adriano O.T. CarrascoJosé A. Marciano Karin WertherAramis A. Pinto Rosangela Z. Machado 《Veterinary parasitology》2009
Neospora caninum infections in chickens have been recently described by epidemiological and experimental approaches, and these birds may be considered natural intermediate hosts of the parasite. It has been postulated that other bird species might perform this role in wildlife as well. To better understand the sylvatic life cycle of N. caninum, further studies are required. In that sense, this work aimed to observe infection kinetics in pigeons experimentally infected with N. caninum. Experimental infections were conducted in parallel with a related protozoan, Toxoplasma gondii, which has been already described as able to infect pigeons in nature. Our results demonstrated that N. caninum disseminated through various tissues of this host and induced parasite-specific IgG seroconversion. Infection parameters were similar to that observed in the T. gondii infected group, although N. caninum-infected pigeons presented lower IgG titers during acute phase. The results herein described demonstrate that pigeons are a suitable model for N. caninum infection, considering that these data are in agreement with those observed in chickens experimentally infected with this parasite. As pigeons may be revealed as important reservoirs for N. caninum infection in nature, future studies are necessary to determine the real prevalence of this parasite in this and other birds in wildlife. 相似文献
120.
Rocha Ribeiro SM Queiroz JH Lopes Ribeiro de Queiroz ME Campos FM Pinheiro Sant'ana HM 《Plant foods for human nutrition (Dordrecht, Netherlands)》2007,62(1):13-17
This work was carried out to investigate the pulp composition of four mango cultivars (Haden, Tommy Atkins and Ubá) at the
ripening stage in relation to three components with antioxidant potential (total phenolics, carotenoids and ascorbic acid).
Total phenolic compound content was estimated by the Folin-Ciocalteu reagent and total carotenoid content by spectrophotometry
at 450 nm. The contents of β-carotene and total vitamin C (ascorbic acid and dehydroascorbic acid) were quantified by high performance liquid chromatography.
Differences were found among the four mango cultivars in all the components analyzed. The content of phenolic compounds ranged
from 48.40 (Haden) to 208.70 mg/100 g (Ubá); total carotenoid from 1.91 (Haden) to 2.63 mg/100 g (Palmer); β-carotene from 661.27 (Palmer) to 2,220 μg/100 g (Ubá) and total ascorbic acid ranged from 9.79 (Tommy Atkins) to 77.71 mg/100 g
(Ubá). These results corroborated previous information that mangoes are a good source of antioxidants in human diet. 相似文献