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Genetic parameters for worm resistance in Santa Inês sheep using the Bayesian animal model
Rodrigues, Francelino Neiva,Sarmento, Jose Lindenberg Rocha,Leal, Tania Maria,de Araujo, Adriana Mello,Filho, Luiz Antonio Silva Figueiredo Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.2
Objective: The objective of this study was to estimate the genetic parameters for worm resistance (WR) and associated characteristics, using the linear-threshold animal model via Bayesian inference in single- and multiple-trait analyses. Methods: Data were collected from a herd of Santa Inês breed sheep. All information was collected with animals submitted to natural contamination conditions. All data (number of eggs per gram of feces [FEC], Famacha score [FS], body condition score [BCS], and hematocrit [HCT]) were collected on the same day. The animals were weighed individually on the day after collection (after 12-h fasting). The WR trait was defined by the multivariate cluster analysis, using the FEC, HCT, BCS, and FS of material collected from naturally infected sheep of the Santa Inês breed. The variance components and genetic parameters for the WR, FEC, HCT, BCS, and FS traits were estimated using the Bayesian inference under the linear and threshold animal model. Results: A low magnitude was obtained for repeatability of worm-related traits. The mean values estimated for heritability were of low-to-high (0.05 to 0.88) magnitude. The FEC, HCT, BCS, FS, and body weight traits showed higher heritability (although low magnitude) in the multiple-trait model due to increased information about traits. All WR characters showed a significant genetic correlation, and heritability estimates ranged from low (0.44; single-trait model) to high (0.88; multiple-trait model). Conclusion: Therefore, we suggest that FS be included as a criterion of ovine genetic selection for endoparasite resistance using the trait defined by multivariate cluster analysis, as it will provide greater genetic gains when compared to any single trait. In addition, its measurement is easy and inexpensive, exhibiting greater heritability and repeatability and a high genetic correlation with the trait of resistance to worms.
José Meneses de Morais Filho,João Nogueira Neto,Lyvia Maria Rodrigues de Sousa Gomes,Izabelle Smith Fraza˜o Ramos,Salie Santos Rodrigues Oliveira,George Castro F. Melo,Lucilene Amorim Silva,Ed Carlos 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.4
Endometriosis was induced (autotransplant) in Wistar rats. After 21 days, the rats were randomly divided into two groups (16 female rats each). Control group was forced-fed 0.9% sodium chloride solution, and the ginger group was forced-fed 0.5 mg/100 g of Zingiber officinale Roscoe fresh extract, both by gavage, for 14 days, in addition to their normal diet. After that, an anesthetic dose (ketamine/xylazine) was administered until euthanasia. Peritoneal lavage fluid was collected to evaluate tumor necrosis factor (TNF)-α and interleukin (IL)-6, and autotransplant was measured and excised to evaluate histology. The final mean volumes were larger in the control group (120.92 mm3 ± 78.91) than in the ginger group (40.50 mm3 ± 19.57) (P = .01). The endometriosis foci increased in the control group from 45.10 mm3 ± 29.96 at 21 days postimplantation to 120.92 mm3 ± 78.91 on the day of euthanasia (P = .02). In the ginger group, a slight increase was observed from 38.43 mm3 ± 19.96 to 40.50 mm3 ± 19.57, without statistical difference (P = .83). In addition, a greater increase in growth of the endometriosis foci was found when compared with the control (75.81 mm3 ± 58.95) and ginger groups (2.07 mm3 ± 18.87) (P = .004). No difference was found in TNF-α (P = .51) and in IL-6 (P = .12). The degree of lesion atrophy was higher in the ginger group (1 ± 0.92) than in the control group (2.25 ± 1.16) (P = .03). The ginger extract reduced and atrophied autotransplanted endometriosis foci, but did not reduce IL-6 and TNF-α in the peritoneal lavage fluid.
Wladimir Costa Paradas,Leonardo Rodrigues Andrade,Leonardo Tavares Salgado,Ligia Collado-Vides,Renato Crespo Pereira,Gilberto Menezes Amado-Filho 한국조류학회I 2015 ALGAE Vol.30 No.4
The present study described with different microscopy approaches chloroplasts lobes in Laurencia sensu latu (Rhodophyta) species and found inter-specific differences among them. Chloroplasts were investigated using confocal laser scanning microscopy (LSM), transmission electron microscopy (TEM) and high resolution scanning electron microscopy (HRSEM). Using and TEM and HRSEM images we distinguished chloroplasts with lobes than chloroplasts without lobes in Yuzurua poiteaui var. gemmifera (Harvey) M. J. Wynne and Laurencia dendroidea J. Agardh cortical cells. The LSM images showed chloroplasts lobes (CLs) with different morphologies, varying from thicker and longer undulated projections in Y. poiteaui var. and L. dendroidea to very small and thin tubules as in Laurencia translucida Fujii & Cordeiro-Marino. The diameter and length of CLs from Y. poiteaui var. and L. dendroidea were significantly higher than L. translucida CLs (p < 0.01). Based on LSM observations, we suggest that lobes morphology has a taxonomic validity only to characterize L. translucida species.
Fertirrigation for Vegetables Grown in Greenhouses
Putti, Fernando Ferrari,Cremasco, Camila Pires,Filho, Luis Roberto Almeida Gabriel,Reis, Andre Rodrigues Do Korean Society for Agricultural Machinery 2014 바이오시스템공학 Vol.39 No.4
Purpose: Concerns over the quantity of available freshwater for agriculture have triggered the development of technologies intended to increase efficiency of water use, especially with regard to irrigation. A new technique called fertirrigation has been developed to use the same irrigation equipment for fertilization. Methods: Since the above-mentioned technique requires care during installation and use on farms, current analysis focuses on some of its characteristics. Results: High uniformity irrigation systems provide the best distribution of fertilizers, especially when used in combination with drip irrigation or micro-aspersion. The factors purity, compatibility, acidification, salinity, and solubility should be taken into account. Conclusions: Fertirrigation provides a significant increase in productivity as it allows for highly controlled nutrient application during the entire growing season. However, it may cause serious problems if misused or overused.
Prosthetic misfit of implant-supported prosthesis obtained by an alternative section method
Rodrigo Tiossi,Hilmo Barreto Leite Falcão-Filho,Fábio Afrânio de Aguiar, Júnior,Renata Cristina Silveira Rodrigues,Maria da Gloria Chiarello de Mattos,Ricardo Faria Ribeiro 대한치과보철학회 2012 The Journal of Advanced Prosthodontics Vol.4 No.2
PURPOSE Adequate passive-fitting of one-piece cast 3-element implant-supported frameworks is hard to achieve. This short communication aims to present an alternative method for section of one-piece cast frameworks and for casting implant-supported frameworks. MATERIALS AND METHODS Three-unit implant-supported nickel-chromium (Ni-Cr) frameworks were tested for vertical misfit (n = 6). The frameworks were cast as one-piece (Group A) and later transversally sectioned through a diagonal axis (Group B) and compared to frameworks that were cast diagonally separated (Group C). All separated frameworks were laser welded. Only one side of the frameworks was screwed. RESULTS The results on the tightened side were significantly lower in Group C (6.43 ± 3.24 µm) when compared to Groups A (16.50 ± 7.55 µm) and B (16.27 ± 1.71 µm) (P<.05). On the opposite side, the diagonal section of the one-piece castings for laser welding showed significant improvement in the levels of misfit of the frameworks (Group A, 58.66±14.30 µm; Group B, 39.48±12.03 µm; Group C, 23.13±8.24 µm) (P<.05). CONCLUSION Casting diagonally sectioned frameworks lowers the misfit levels. Lower misfit levels for the frameworks can be achieved by diagonally sectioning one-piece frameworks.
Silva Yeda da,Munhoz Luciana,Filho José Rodrigues Parga,Damasceno Andreza Gomes,da Rosa Cesar Felipe França,Zukovski Eduardo Bilaqui,Teng Erik Zhu,de Castro Cláudio Campi 대한영상치의학회 2023 Imaging Science in Dentistry Vol.53 No.1
Purpose: This study evaluated maxillary sinus volume changes in military jet aircraft pilot candidates before and after the training program, in comparison with a control group, considering the effects of pressurization, altitude, and total flight hours, through multislice computed tomography. Materials and Methods: Fifteen fighter pilots were evaluated before initiating the training program and after the final approval. The control group consisted of 41 young adults who had not flown during their military career. The volumes of each maxillary sinus were measured individually before and at the end of the training program. Results: When comparing the initial and final volumes in the pilots, a statistically significant increase was observed both in the left and right maxillary sinuses. When evaluating the average total volume of the maxillary sinuses (i.e., the average volume of the right and left maxillary sinuses together), a significant increase in the volume of the maxillary sinuses was observed in the pilot group when compared to the control group. Conclusion: The maxillary sinus volumes in aircraft pilot candidates increased after the 8-month training program. This may be explained by changes in the gravitational force, the expansion of gas, and positive pressure from oxygen masks. This unprecedented investigation among pilots might lead to other investigations considering paranasal sinus alterations in this singular population.
Dietary chia (Salvia hispanica L.) improves the nutritional quality of broiler meat
Mendonça Nicole Batelli de Souza Nardelli,Sobrane Filho Sérgio Turra,Oliveira David Henrique de,Lima Eduardo Machado Costa,Rosa Priscila Vieira e,Faria Peter Bitencourt,Naves Luciana de Paula,Rodrigue 아세아·태평양축산학회 2020 Animal Bioscience Vol.33 No.8
Objective: The current study was conducted to evaluate the quality and profile of fatty acid in the breast and thigh, and the performance of broilers fed diets containing seed or oil of chia (Salvia hispanica L.) as a replacement for soybean, in the rearing period from 29 to 42 days of age. Methods: On the 29th day of age, 120 broilers were distributed in four treatments evaluated in five replicates of six birds. The grain or oil of soybean was respectively replaced on a weight-to-weight basis in the formulation by the seed or oil of chia, constituting the experimental diets. The roasted whole soybean and chia seed were included in the feed at 16.4%, whereas the soybean and chia oils were included at 2.5%. Results: The dietary chia oil increased the lipid peroxidation in the thigh meat, and the dietary chia seed increased the cooking loss of the thigh. However, for the other physicochemical parameters evaluated and for the proximate composition of the breast and thigh, in general, the inclusion of chia seed or oil in the diet provided similar or better results than those observed when the diets contained soybean oil or roasted whole soybean. With regard to the fatty acid profile and associated parameters, dietary chia increased the concentrations of α-linolenic, eicosapentaenoic, and docosahexaenoic acids and reduced the Σω-6:Σω-3 ratio and the atherogenicity and thrombogenicity indices of the broiler meat. However, the dietary chia seed worsened the feed conversion ratio. Conclusion: Diet containing 2.5% chia oil supplied to broilers during the period from 29 to 42 days of age improves the feed conversion ratio, increases the deposition of the ω-3 fatty acids in the breast and thigh, in addition to reducing the Σω-6:Σω-3 ratio and the atherogenicity and thrombogenicity indices, thereby resulting in meat with higher nutritional quality.
Nelson Luis Costa dos Santos Filho,Eden Santos Silva,Clodualdo Aranas Jr.,Fulvio Siciliano,Gedeon Silva Reis,Samuel Filgueiras Rodrigues 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.11
The correlation between hardening and softening in an ASTM F-1586 stainless steel used as biomaterial was investigatedby means of hot torsion simulations. Multi-pass deformation under continuous cooling was employed to simulate industrialhot rolling. Samples were subjected to 17 deformation passes of strains of 0.20 and 0.30, strain rate of 1.0 s−1 in a temperaturerange of 1250 to 930 °C. Interpass times (tp) of 5.0, 10, 20, 40, and 80 s were used. The obtained results showed directdependence of the mean flow stress (MFS) and all applied thermomechanical parameters. The work hardening rate associatedwith the degree of stress accumulation (Δσ) inhibited the metadynamic recrystallization. This led to the variation ofthe non-recrystallization temperature (Tnr), associated with intense static recovery in the material. From the experimentaldata, a constitutive function of the mean flow stress (MFS) obtained through multiple nonlinear regression technique wasproposed. The study aimed to have a better understanding of the physical metallurgy behind the thermomechanical behaviorof the steel under a multi-pass process. The results allowed to monitor the recrystallized fraction (X) and the grain size (d)during the simulated conditions.
Paradas, Wladimir Costa,Andrade, Leonardo Rodrigues,Salgado, Leonardo Tavares,Collado-Vides, Ligia,Pereira, Renato Crespo,Amado-Filho, Gilberto Menezes The Korean Society of Phycology 2015 ALGAE Vol.30 No.4
The present study described with different microscopy approaches chloroplasts lobes in Laurencia sensu latu (Rhodophyta) species and found inter-specific differences among them. Chloroplasts were investigated using confocal laser scanning microscopy (LSM), transmission electron microscopy (TEM) and high resolution scanning electron microscopy (HRSEM). Using and TEM and HRSEM images we distinguished chloroplasts with lobes than chloroplasts without lobes in Yuzurua poiteaui var. gemmifera (Harvey) M. J. Wynne and Laurencia dendroidea J. Agardh cortical cells. The LSM images showed chloroplasts lobes (CLs) with different morphologies, varying from thicker and longer undulated projections in Y. poiteaui var. and L. dendroidea to very small and thin tubules as in Laurencia translucida Fujii & Cordeiro-Marino. The diameter and length of CLs from Y. poiteaui var. and L. dendroidea were significantly higher than L. translucida CLs (p < 0.01). Based on LSM observations, we suggest that lobes morphology has a taxonomic validity only to characterize L. translucida species.