Nutritional planning for Nellore heifers post-weaning to conception at 15 months of age: performance and nutritional,metabolic, and reproductive responses     

de Almeida  Daniel Mageste  Marcondes  Marcos Inácio  Rennó  Luciana Navajas  Pereira Silva  Luiz Henrique  Martins  Leandro Soares  Marquez  David Esteban Contreras  Castaño Villadiego  Faider Alberto  Velez Saldarriaga  Felipe  Franco  Julian David Castaño  Moreno  Deilen Paff Sotelo  de Moura  Felipe Henrique  Paulino  Mário Fonseca 《Tropical animal health and production》2019,51(1):79-87

Tropical Animal Health and Production - The objective of this study was to evaluate the effects of strategic supplementation in the dry period and dry/rainy transition period on the performance and...  相似文献   

Genetic parameters for nitrogen fractions content in Mexican Brown Swiss cattle milk     

Saavedra-Jiménez  Luis Antonio  Ramírez-Valverde  Rodolfo  Núñez-Domínguez  Rafael  Ruíz-Flores  Agustín  García-Muñiz  José Guadalupe 《Tropical animal health and production》2019,51(8):2235-2241

Tropical Animal Health and Production - Nitrogen plays an important role in the metabolism of living organisms due to the variety of physiological functions that involve molecules that contain it....  相似文献   

Analysis of domestic animal movements in Colombia (2006–2014) and their possible influence on the bovine brucellosis spread     

Cárdenas  Liliana  Cañas-Álvarez  Jhon J.  Vázquez  Ana  Boixadera  Ester  Casal  Jordi 《Tropical animal health and production》2019,51(2):383-388

Tropical Animal Health and Production - Bovine brucellosis is a zoonotic disease that causes great economic losses. The disease is endemic in Colombia and animal movements from infected herds carry...  相似文献   

Prevalence study of the lungworm Aelurostrongylus abstrusus in stray cats of Portugal     

Payo-Puente P  Botelho-Dinis M  Carvaja Urueña AM  Payo-Puente M  Gonzalo-Orden JM  Rojo-Vazquez FA 《Journal of Feline Medicine and Surgery》2008,10(3):242-246

In this study we have investigated the prevalence of aelurostrongylosis, one of the most common feline pulmonary parasitic diseases, in cats from the north-west region of Portugal. For this purpose, 97 faecal samples were collected from cats at risk of being infected by Aelurostrongylus abstrusus in an animal shelter and in a municipal facility. Using the Baermann-Wetzel coprological technique, faecal shedding of first stage larvae (L1) was detected in 17.4% of the cats. Based on this result, it can be concluded that this lungworm infection seems to be common among feral cats in the north-west region of Portugal, in spite of the fact that clinical aelurostrongylosis is not frequently diagnosed by feline practitioners in the area. This parasitic disease should be included in the differential diagnosis of cats presenting with coughing or dyspnoea, and it also should be extended to asymptomatic animals with pulmonary nodules detected by image diagnosis.  相似文献   

Resistance Reaction of Conifer Species (European Larch, Norway Spruce, Scots Pine) to Infection by Selected Necrotrophic Damping-off Pathogens     

M. Kacprzak  F.O. Asiegbu  G. Daniel  J. Stenlid  M. Mañka  M. Johansson 《European journal of plant pathology / European Foundation for Plant Pathology》2001,107(2):191-207

Three conifer species (European larch, Norway spruce, Scots pine) were investigated for their resistance to five damping-off pathogens (Rhizoctonia solani, Fusarium solani, F. oxysporum, F. culmorum, F. avenaceum). Inoculation of the primary roots of seedlings with these pathogens caused host cell death which did not prevent the invasive growth of these fungi; seedlings that had formed secondary and tertiary roots could overcome the infection to a significant degree. Infections with R. solani caused significant mortality to all the conifer species. In contrast, the tree species expressed different levels of resistance when challenged with the Fusarium isolates, with Norway spruce being the most resistant compared to uninoculated controls. Some of the Fusarium isolates were more pathogenic to certain hosts than others; F. oxysporum for European larch, F. avenaceum for Scots pine, F. solani for European larch; only F. culmorum was significantly pathogenic to Norway spruce. No significant differences in disease severity were observed at different soil pH (4.3–7.5). Disease progression was delayed at lower (10–15°C) rather than higher temperatures (20–25°C).  相似文献   

Improving Control of Green and Blue Molds of Oranges by Combining Pantoea Agglomerans (CPA-2) and Sodium Bicarbonate   总被引：7，自引：0，他引：7  

N. Teixidó  J. Usall  L. Palou  A. Asensio  C. Nunes  I. Viñas 《European journal of plant pathology / European Foundation for Plant Pathology》2001,107(7):685-694

The potential of using Pantoea agglomerans (strain CPA-2) alone, or in combination with sodium bicarbonate or sodium carbonate solutions, for control of Penicillium digitatum (green mold) and Penicillium italicum (blue mold) on oranges was investigated under ambient (20 °C) and cold storage (3 °C) conditions. P. agglomerans controlled both pathogens on oranges at 2 × 10⁸ cfu ml^-1. The biocontrol agent was found to be completely tolerant to 2% sodium bicarbonate at room temperature, although its culturability was reduced by > 1000-fold after 30 min in 2% sodium carbonate. The efficacy of P. agglomerans for control of green mold was improved when combined with sodium bicarbonate, resulting in complete and 97.6% reduction of decay incidence at 3 °C and 20 °C, when compared to untreated controls. Satisfactory results were also obtained with the combined treatment for control of blue mold. P. agglomerans grew well inside wounds on oranges at both 20 °C and 3 °C. In contrast, it showed a reduced growth on the surface of intact fruit. Sodium bicarbonate at 2% concentration did not noticeably affect antagonist population development. Thus, use of bicarbonate treatment at 2% followed by the antagonist P. agglomerans CPA-2 could be an alternative to chemicals for control of postharvest diseases on oranges.  相似文献   

亚洲玉米螟对氰戊菊酯抗性遗传初步分析     

王开运  慕立义 《植物保护学报》1992,19(1):22-22,32

亚洲玉米螟(Ostrinia furnacalis Guenee)在我国分布广,为害较重。近年来国内对该虫的分布、防治及抗药性方面做了大量的工作,但对该虫的抗性遗传研究尚不多。作者利用室内选育的氰戊菊酯抗性玉米螟品系及敏感品系做了抗性遗传研究,并采用生  相似文献   

Influence of Post‐Mortem Sperm Recovery Method and Extender on Unstored and Refrigerated Rooster Sperm Variables          下载免费PDF全文

S Villaverde‐Morcillo  MC Esteso  C Castaño  J Santiago‐Moreno 《Reproduction in domestic animals》2016,51(1):40-46

Many post‐mortem sperm collection techniques have been described for mammalian species, but their use in birds is scarce. This paper compares the efficacy of two post‐mortem sperm retrieval techniques ‐ the flushing and float‐out methods ‐ in the collection of rooster sperm, in conjunction with the use of two extenders, i.e., L&R‐84 medium and Lake 7.1 medium. To determine whether the protective effects of these extenders against refrigeration are different for post‐mortem and ejaculated sperm, pooled ejaculated samples (procured via the massage technique) were also diluted in the above extenders. Post‐mortem and ejaculated sperm variables were assessed immediately at room temperature (0 h), and after refrigeration at 5°C for 24 and 48 h. The flushing method retrieved more sperm than the float‐out method (596.5 ± 75.4 million sperm vs 341.0 ± 87.6 million sperm; p < 0.05); indeed, the number retrieved by the former method was similar to that obtained by massage‐induced ejaculation (630.3 ± 78.2 million sperm). For sperm collected by all methods, the L&R‐84 medium provided an advantage in terms of sperm motility variables at 0 h. In the refrigerated sperm samples, however, the Lake 7.1 medium was associated with higher percentages of viable sperm, and had a greater protective effect (p < 0.05) with respect to most motility variables. In conclusion, the flushing method is recommended for collecting sperm from dead birds. If this sperm needs to be refrigerated at 5°C until analysis, Lake 7.1 medium is recommended as an extender.  相似文献   

A Placebo‐Controlled,Prospective, Randomized Clinical Trial of Polyethylene Glycol and Methylprednisolone Sodium Succinate in Dogs with Intervertebral Disk Herniation          下载免费PDF全文

N.J. Olby  A.C. Muguet‐Chanoit  J.‐H. Lim  M. Davidian  C.L. Mariani  A.C. Freeman  S.R. Platt  J. Humphrey  M. Kent  C. Giovanella  R. Longshore  P.J. Early  K.R. Muñana 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2016,30(1):206-214

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Effects of age and breed on corneal thickness,density, and morphology of corneal endothelial cells in enucleated sheep eyes          下载免费PDF全文

Natalia Coyo  Maria Teresa Peña  Daniel Costa  José Ríos  Rodrigo Lacerda  Marta Leiva 《Veterinary ophthalmology》2016,19(5):367-372

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