Male and female cats have different regional body compositions and energy requirements for weight loss and weight maintenance     

Ricardo Souza Vasconcellos  Karina Nogueira Venturelli Gonalves  Naida Cristina Borges  Francisco Jos Albuquerque de Paula  Júlio Carlos Canola  Mrcia de Oliveira Sampaio Gomes  Tnia Zia Miltenburg  Aulus Cavalieri Carciofi 《Journal of animal physiology and animal nutrition》2019,103(5):1546-1555

Body composition and energy requirements are different between males and females in several species, and both interfere with weight loss. The aim of this study was to compare the total and regional body composition and energy requirements in obese male (n = 8) and female (n = 8) cats, during weight loss and weight maintenance over 17 subsequent weeks after regimen. The total and regional (thoracic and pelvic limbs, and trunk) body composition was assessed by dual‐energy X‐ray absorptiometry (DXA). Females exhibited a higher fat mass (FM) than males (p < 0.05), and the trunk was the site with greater fat accumulation regardless of gender. A 23.0 ± 2.8% reduction in body weight was followed by a 50.3 ± 9.4% and a 37.0 ± 8.9% reduction in fat in the trunk region in males and females respectively. Lean mass (LM) mobilization was also increased in the trunk (p < 0.05), and the loss of LM was associated with a reduction in bone mass. The energy intake to achieve the same rate of weight loss was 12.9 ± 3.4% higher in males (p < 0.05). The cats exhibited a gradual increase in energy requirements to maintain their body weight after weight loss (p < 0.05). It was concluded that obese cats mainly accumulate fat in the trunk. The reduction in lean mass after the regimen also occurred in the trunk, with no modifications in the skeletal muscle mass of the limbs. Neutered male cats have higher energy requirements than neutered females, and gender should be considered during obesity management in cats.  相似文献   

Impact of land-use change on biodiversity and ecosystem services in the Chilean temperate forests     

James Rodríguez-Echeverry  Cristian Echeverría  Carlos Oyarzún  Luis Morales 《Landscape Ecology》2018,33(3):439-453

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Albendazole treatment in laying hens: Egg residues and its effects on fertility and hatchability          下载免费PDF全文

Laura Moreno  Mariana Bistoletti  Hector Fernández  Lucila Cantón  Laura Ceballos  Candela Cantón  Carlos Lanusse  Luis I. Álvarez 《Journal of veterinary pharmacology and therapeutics》2018,41(5):726-733

This work characterized the egg residual concentrations of albendazole (ABZ ) and its sulphoxide (ABZSO ) and sulphone (ABZSO ₂) metabolites and evaluated their effect on egg fertility and hatchability after ABZ treatments to laying hens. Seventy hens were allocated in groups: Group‐1 was the control without treatment; Group‐2 received a single ABZ oral dose (10 mg/kg); Group‐3, ‐4 and ‐5 were treated with ABZ in medicated feed over 7 days at 10, 40, or 80 mg kg^?1 day^?1, respectively. Eggs were analyzed to determine the ABZ /metabolite level by HPLC or subjected to incubation to evaluate the fertility and hatchability. Only ABZSO and ABZSO ₂ metabolites were quantified in egg after ABZ single oral administration with maximum concentrations of 0.47 ± 0.08 and 0.30 ± 0.07 μg/ml, respectively. ABZ and its metabolites were found in eggs after 7‐day ABZ treatments. The egg residue exposure estimated as AUC s (areas under the concentration vs . time curve) were 100.5 (ABZ ), 56.3 (ABZSO ) and 141.3 μg hr g^?1 (ABZSO ₂). ABZ administration did not affect the egg fertility at any dosages. Egg hatchability was not affected by ABZ treatment at 10 mg/kg in medicated feed, but it decreased when the dose was 4–8 times higher. These results should be considered when ABZ is used for deworming laying hens.  相似文献   

Lipid droplets in clusters negatively affect Bos indicus embryos during cryopreservation          下载免费PDF全文

Eva Patricia López‐Damián  José Alfredo Jiménez‐Medina  Miguel Angel Lammoglia  Jaime Arturo Pimentel  Lourdes Teresa Agredano‐Moreno  Chris Wood  Carlos Salvador Galina  Tatiana Fiordelisio 《Anatomia, histologia, embryologia》2018,47(5):435-443

Embryo transfer using cryopreserved B. indicus embryos results in low pregnancy rates. The low viability of B. indicus embryos is likely a result of their low freezability relative to embryos from other species, notably B. taurus. Freezability is probably related to the quantity of lipid droplets in the embryonic cells. However, the mechanism underlying this association is unknown. Using multiphoton and transmission electron microscopy, the proportion, volume, morphology and composition of lipid droplets in fresh and cryopreserved B. indicus and B. taurus embryos were studied. B. indicus embryos have more droplets than B. taurus and a greater percentage of lipid droplets in clusters (34% vs. 24%; p < 0.05). Also, B. indicus individual droplets are of greater volume than those of B. taurus (47 μm³ vs. 34 μm³; p < 0.05). After freezing, the percentage of clusters decreased in B. indicus (11% vs. 5%; p < 0.05), while in B. taurus they increased (2% vs. 7%; p < 0.05). Freezing influenced the lipid droplet morphology, increasing the number of cracked droplets in B. indicus embryos (33% fresh vs. 62% frozen; p < 0.05), but not in B. taurus embryos (35% fresh vs. 34% frozen; ns). Regarding composition, saturated lipid droplets prevail in B. indicus embryos, contrary to B. taurus embryos. We observed differences in lipid droplet organization, proportion, volume, morphology and composition between B. indicus and B. taurus embryos which are altered in opposite directions following freezing.  相似文献   

Evaluation of C‐reactive protein as an inflammatory marker of pemphigus foliaceus and superficial pyoderma in dogs          下载免费PDF全文

Julia So Severo  Aline Elisa Santana  Valeria Aoki  Nilceo S. Michalany  Matheus Matioli Mantovani  Carlos Eduardo Larsson Jr  Carlos Eduardo Larsson 《Veterinary dermatology》2018,29(2):128-e51

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Total cysto-prostatectomy: Technique description and results in 2 dogs     

Nicholas Bacon  Carlos H. de M. Souza  Sarah Franz 《The Canadian veterinary journal. La revue veterinaire canadienne》2016,57(2):141-146

We describe a novel technique for total cysto-prostatectomy, followed by uretero-urethral anastomosis in 2 dogs. The technique was successful and was performed without pubic osteotomy. Post-operative urinary tract infections may be a potentially serious event.  相似文献   

Population genetic structure in the Holstein breed in Brazil     

Mário Henrique Magalhães Araújo da Silva  Carlos Henrique Mendes Malhado  José Lauro Costa  Jaime Araujo Cobuci  Claudio Napolis Costa  Paulo Luiz Souza Carneiro 《Tropical animal health and production》2016,48(2):331-336

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Pancarpal Arthrodesis Without Rigid Coaptation Using the Hybrid Dynamic Compression Plate in Dogs          下载免费PDF全文

Juan M. Ramirez  Carlos Macias 《Veterinary surgery : VS》2016,45(3):303-308

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Case Report: Strawberry Disease in Farmed Chilean Rainbow Trout     

Carlos Sandoval  Jorge Infante  Jessica Abad  Hugh W. Ferguson  Enrique Paredes  Samuel Valdebenito 《Journal of aquatic animal health》2016,28(1):1-10

Strawberry disease is a chronic, nonlethal skin condition that affects Rainbow Trout Oncorhynchus mykiss in the United States and several European countries, where it is also known as red-mark syndrome. We provide the first identification and characterization of three strawberry disease outbreaks occurring at two aquaculture farms in southern Chile. Clinically affected fish weighing an average of 400 g presented multiple bright-red, usually raised, skin lesions on the flank, ventral surface, and dorsal surface. A PCR using Rickettsia-like-organism (RLO)-specific primers was performed on nine affected fish, and all skin samples were positive for the RLO 16S ribosomal RNA sequence. All PCR results for Flavobacterium psychrophilum and other bacterial and viral pathogens were negative. Histopathological examination of the skin lesions revealed extensive dermatitis, with severe lymphocytic infiltration in advanced cases. This report is the first to describe strawberry disease in farmed Chilean Rainbow Trout. Additional studies are needed to evaluate the risk for Rainbow Trout culture; fish challenge experiments should be performed to fulfill Koch’s postulates and to demonstrate that RLO is the cause of this disease.

Received December 27, 2014; accepted October 23, 2015.  相似文献   

Susceptibility of cork oak (Quercus suber) to canker disease caused by Diplodia corticola: when time is of the essence     

Muñoz-Adalia  Emigdio Jordán  Colinas  Carlos 《New Forests》2021,52(5):863-873

New Forests - Cork is a renewable resource mainly produced in Mediterranean countries thanks to sustainable management of cork oak (Quercus suber) stands. The infection caused by the ascomycete...  相似文献