Coffee ripeness monitoring using a UAV-mounted low-cost multispectral camera     

Rosas  Jorge Tadeu Fim  de Carvalho Pinto  Francisco de Assis  de Queiroz  Daniel Marçal  de Melo Villar  Flora Maria  Magalhães Valente  Domingos Sárvio  Nogueira Martins  Rodrigo 《Precision Agriculture》2022,23(1):300-318

Coffee beverage quality is highly correlated with the degree of fruit ripeness. In this sense, monitoring fruit ripeness is of utmost importance for harvest planning and, especially for obtaining high-quality beverages. Currently, this process is carried out through manual counts of unripe fruits, which is laborious and limited to a few plants within the field. This study aimed at evaluating the potential of a low-cost multispectral camera for coffee ripeness monitoring in the Zona da Mata region of Minas Gerais State, Brazil. For that, five fields of Arabica coffee with distinct characteristics were evaluated. During the coffee ripeness period, four flights were carried using a Phantom 4 Pro quadcopter equipped with a Mapir Survey 3W camera for imagery acquisition. After that, nine vegetation indices (VIs) were obtained. For the same dates, the percentage of unripe fruits was obtained using an irregular grid in all fields. The data was split into two ripeness classes: suitable for harvest (R) with?<?30% of unripe fruits; and not suitable for harvest (U), with?>?30% of unripe fruits. Then, a principal component analysis was used to infer the importance of the VIs to discriminate plants with unripe fruits from those with ripe fruits. The first two principal components explained?>?75% of the variance in the datasets from all coffee fields. The VIs were able to discriminate the ripeness classes (U and R) in most fields; however, their performance was directly influenced by the crop yield and canopy volume.

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Effects of combined use of keratinolytic enzymes and sugarcane fibre on the hairball excretion in cats     

Tânia Zóia Miltenburg  Rosane Marina Peralta  Carlos Antônio Lopes de Oliveira  Vanderly Janeiro  Edilenia Queiroz Pereira  Julia Teodoro de Souza Nicolau  Leonir Bueno Ribeiro  Ricardo Souza Vasconcellos 《Journal of animal physiology and animal nutrition》2021,105(Z2):129-137

Grooming is a natural hygienic behaviour of cats that favours the formation of hairballs. Increased fibre concentration in the diets is a strategy to minimize hairball formation, but it is not fully effective. Because cat hair is formed mostly by keratin, the addition of keratinases in the diets might be an alternative for hairball control. Thus, the objective was to evaluate the effect of the combined use of sugarcane fibre and a protease complex to reduce the hairball excretion in cats. Twenty-four adult cats were divided into four treatment groups (n = 6 per treatment) in a 2 × 2 factorial arrangement. Treatments were as follows: control diet (Control; containing low concentration of insoluble fibre, 5.34% of total dietary fibre), control diet plus enzyme (Co-e), high-fibre diet (HF; containing high amounts of insoluble fibre, 17.8% of total dietary fibre), and HF diet plus enzyme (HF-e). Proteases from Bacillus licheniformis PWD-1 were administered orally (5 mg/day) as gastro-resistant capsules. Total collection of faeces was carried out to determine the number of excreted hairballs and the coefficient of total tract apparent digestibilities (CTTAD) of the diets. Separate addition of insoluble fibre (HF; p = .5947) or enzyme complex (Co-e; p = .3633) had no effect on the hairballs excreted in the faeces. However, the combined use of insoluble fibre and enzymes (HF-e) reduced (p = .0344) the total number of hairballs excreted. The size distribution of hairballs (small, medium, or large) was not affected by treatments (p = .3763). The CTTAD of crude protein was not affected by protease addition (p = .781) but was reduced by HF and HF-e treatments. Sugarcane fibre associated to keratinolytic enzymes reduces the hairball excretion in cats. This strategy can be adopted for this purpose; however, methods for faecal hairball quantification must be improved. If you have not already completed a Copyright Transfer Agreement, please log on to Wiley Author Serivices, https://authorservices.wiley.com/bauthor/ , sign-in and complete the License Agreement form"  相似文献   

Branchiomycosis in tambaqui, Colossoma macropomum (Cuvier), from the eastern Brazilian Amazon     

Pereira WL  de Souza AJ  Gabriel AM  Cardoso AM  Monger SG  Seligmann IC  Pereira AC  Queiroz DK 《Journal of fish diseases》2012,35(8):615-617

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Medicinal plants popularly used in the Brazilian Tropical Atlantic Forest     

Di Stasi LC  Oliveira GP  Carvalhaes MA  Queiroz M  Tien OS  Kakinami SH  Reis MS 《Fitoterapia》2002,73(1):69-91

A survey of medicinal plants used by rural and urban inhabitants of the three cities of the Tropical Atlantic Forest, Region of Vale do Ribeira, State of S?o Paulo, Brazil was performed by means of 200 interviews with medicinal plant users and extractors and, traditional healers. One hundred fourteen herbal remedies were recorded and the following information reported: Latin, vernacular and English names, plant part used, forms of preparation and application of the herbal remedies, medicinal or food uses, areas of plant collection, economic importance (when available) and other data.  相似文献   

Introduced <Emphasis Type="Italic">Eucalyptus</Emphasis> psyllids in Brazil     

Dalva Luiz de Queiroz Santana  Daniel Burckhardt 《Journal of Forest Research》2007,12(5):337-344

In the last 10 years, four species of psyllid were detected in Brazil on eucalypts: Ctenarytaina spatulata in 1994, Blastopsylla occidentalis in 1997, Ctenarytaina eucalypti in 1998 and Glycaspis brimblecombei in 2003. The latter two are serious pests in several countries. In Brazil, G. brimblecombei caused significant damage to the eucalypt plantations in the first years of its introduction. Now this pest is under control due to the programmes of integrated pest management, where the parasitoid is the principal control agent. The four eucalypt psyllid species introduced into Brazil are presented with information on distribution, hosts, biology and control.  相似文献   

Pulmonary cryptococcosis in slaughtered sheep: anatomopathology and culture     

Lemos LS  Siqueira de O dos Santos A  Vieira-da-Motta O  Texeira GN  Queiroz de Carvalho EC 《Veterinary microbiology》2007,125(3-4):350-354

Cryptococcosis is considered a zoonosis but is rare in stock animals. In humans it is imputed to be a mortality cause in immunocompromised patients. This case study reports the anatomopathology of respiratory cryptococcosis in ovine and the recuperation and identification of Cryptococcus neoformans var. neoformans from 1-year frozen lung tissue sample. The findings from haematoxylin/eosin staining microscopy and special staining showed the destruction of the columnar respiratory epithelium architecture associated to suppuration, and the growth of spherical yeast buddings sometimes involved by clear halo produced by unstained capsular substance. The agent was identified by miniApi ID32C, while variety neoformans was further identified by culture in CGB agar. The diagnosis in stock animal suggests the involvement of an exogenous source of the agent as an alert to public health and contributes for epidemiological investigations.  相似文献   

Prevalence of ibeA gene in avian pathogenic Escherichia coli (APEC)     

Vidotto MC  Queiroz MB  de Lima NC  Gaziri LC 《Veterinary microbiology》2007,119(1):88-89

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The Mycobiota and Toxicity of Equine Feeds     

Keller KM  Queiroz BD  Keller LA  Ribeiro JM  Cavaglieri LR  Pereyra ML  Dalcero AM  Rosa CA 《Veterinary research communications》2007,31(8):1037-1045

Feed contamination can lead to nutrient losses and detrimental effects on animal health and production. The purposes of this study were to investigate the mycobiota in equine mixed feeds and to determine natural contamination with aflatoxin B₁ (AFB₁) and fumonisin B₁ (FB₁). Fungal enumeration of equine feed samples was done. A commercially available enzyme-linked immunosorbent assay kit was applied to quantify AFB₁ and FB₁. A comparison between ELISA and HPLC was carried out. Feed mould counts ranged from <1× 10² to 1× 10⁵ cfu/g. The most frequent genus isolated was Aspergillus (40.54%), followed by Penicillium (18.38%) and Fusarium (16.22%). The most prevalent Aspergillus sp. was A. flavus (36%). AFB₁ values ranged between 0.01 and 99.4 μg/kg. FB₁ levels ranged between 0.01 and 7.49 μg/kg. HPLC and ELISA methods showed positive correlation for AFB₁ and FB₁ determinations (r = 0.9851 and r = 0.9791, respectively). The ELISA analytical method was efficient for AFB₁ and FB₁ detection. The scarcity of studies on natural fungal contamination and on the presence of AFB₁ and FB₁ in materials used as equine feed ingredients highlights the value and contribution of this study.  相似文献   

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   

Surgical Management of Cecal Impaction/Dysfunction by Ileocolostomy in a Horse     

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