Successful multimodal treatment of extreme hypertriglyceridemia in a juvenile diabetic dog     

Aria L. Guarino DVM  DACVIM  Laura A. Cagle DVM  PhD  DACVECC  Caryn M. Ehrhardt DVM  Sarah S. K. Beatty DVM  DACVP  Jere K. Stern DVM  Chen Gilor DVM  DACVIM  Andrew J. Specht DVM  DACVIM  Leo A. Londoño DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2023,33(2):247-256

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Fertility of Holstein cows and heifers submitted to timed artificial insemination and receiving one or two doses (12 h apart) of semen     

Miguel Mellado  Lucía M. Treviño  María I. Chavez  Francisco G. Véliz  Ulises Macías-Cruz  Leonel Avendaño-Reyes  José E. García 《Reproduction in domestic animals》2023,58(1):39-47

The objective of this retrospective study was to assess the effect of receiving a single (n = 50,285) or double (n = 4392) artificial insemination (AI), 12 h apart, within a timed artificial insemination protocol on pregnancy per AI (P/AI) in nulliparous heifers (inseminated with either sex-sorted or conventional semen) and pluriparous Holstein cows in a commercial dairy herd. Also, this study aimed to investigate the relationship between temperature-humidity index (THI) and time of the first AI and fertility. Fertility of cows receiving two AI with normothermia (THI <68) was higher (p < .05) than cows receiving a single AI (42.9% vs. 36.4%). P/AI of cows receiving two AI with severe heat stress (THI >85) was higher (p < .05) than cows receiving a single AI (21.0% vs. 12.6%). Regardless of heat stress conditions, applying the first AI in the morning increased (p < .05) P/AI in cows with double AI than in cows whose first AI occurred in the afternoon (38.4 vs. 33.3%). With moderate heat stress, and sexed-sorted semen, P/AI to timed AI was higher (65.0 vs. 51.9%; p < .05) in heifers receiving double AI than those serviced once. It was concluded that double AI, 12 h apart, enhanced fertility at timed AI than herd mates with a single AI, particularly with heat stress at breeding.  相似文献   

Genomic prediction for meat and carcass traits in Nellore cattle using a Markov blanket algorithm     

Fernando Brito Lopes  Fernando Baldi  Ludmilla Costa Brunes  Marcos Fernando Oliveira e Costa  Eduardo da Costa Eifert  Guilherme Jordão Magalhães Rosa  Raysildo Barbosa Lobo  Cláudio Ulhoa Magnabosco 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2023,140(1):1-12

This study was carried out to evaluate the advantage of preselecting SNP markers using Markov blanket algorithm regarding the accuracy of genomic prediction for carcass and meat quality traits in Nellore cattle. This study considered 3675, 3680, 3660 and 524 records of rib eye area (REA), back fat thickness (BF), rump fat (RF), and Warner–Bratzler shear force (WBSF), respectively, from the Nellore Brazil Breeding Program. The animals have been genotyped using low-density SNP panel (30 k), and subsequently imputed for arrays with 777 k SNPs. Four Bayesian specifications of genomic regression models, namely Bayes A, Bayes B, Bayes Cπ and Bayesian Ridge Regression methods were compared in terms of prediction accuracy using a five folds cross-validation. Prediction accuracy for REA, BF and RF was all similar using the Bayesian Alphabet models, ranging from 0.75 to 0.95. For WBSF, the predictive ability was higher using Bayes B (0.47) than other methods (0.39 to 0.42). Although the prediction accuracies using Markov blanket of SNP markers were lower than those using all SNPs, for WBSF the relative gain was lower than 13%. With a subset of informative SNPs markers, identified using Markov blanket, probably, is possible to capture a large proportion of the genetic variance for WBSF. The development of low-density and customized arrays using Markov blanket might be cost-effective to perform a genomic selection for this trait, increasing the number of evaluated animals, improving the management decisions based on genomic information and applying genomic selection on a large scale.  相似文献   

The effect of salinity on corn yield using the CERES-maize model     

José Beltrão  Jiftah Ben Asher 《Irrigation and Drainage Systems》1997,11(1):15-28

In most cases, when calculating soil water availability, only thewater content is considered. The effect of salinity on the wiltingpoint is neglected. The objective of this work is to use asimulation model (CERES-maize) in order to predict cornyields as a function of water salinity under severalenvironmental, agrotechnical, and plant characteristics. A modelis presented in which the wilting point is a function of the soilsalt content. At high salinity, the water content at wilting pointis higher than at low salinity, resulting in an insufficient amountof available water and, therefore, a reduced yield. The modelwas used to simulate several theoretical and experimentalsituations for forage corn and grain corn. Simulation resultsshowed that nitrogen fertilization increases the salinity thresholdvalue and the yield sensitivity (rate of yield reduction per unitof salinity). The also showed that forage corn is more sensitiveto salinity than grain corn. If the soil is not leached, a heaviersoil texture has a higher salinity threshold value. On the otherhand, if the soil is leached, the soil texture has no influence onthe salinity threshold value and the yield is less sensitive tosalinity in sandy soils. The determination coefficient (r²= 0.75) indicated that the results of the simulations were in goodagreement with the field data.  相似文献   

Outbreak of shoot blight and dieback of Eucalyptus spp., caused by Pseudoplagiostoma eucalypti in Brazil     

Edival Ângelo Valverde Zauza  Lúcio Mauro da Silva Guimarães  Nilza de Lima Pereira Sales  Samuel Alves dos Santos  Rafael Ferreira Alfenas  Acelino Couto Alfenas 《Forest Pathology》2023,53(2):e12806

An outbreak of a new and severe disease was observed in Eucalyptus plantations of Bahia state, Brazil. An Ascomycota fungus has been frequently associated with the main symptoms of the disease namely leaf spot, branch cankers, shoot blight, defoliation, and dieback. Based on morphological characteristics, phylogenetic analysis (ITS and TEF-1α genes), and pathogenicity test on Eucalyptus plants, Pseudoplagiostoma eucalypti was identified as the causal agent of the disease. Although P. eucalytpi has been known from in Brazil since 1998, this is the first report of it causing severe disease and die-back on Eucalyptus spp. and we also record new symptoms associated with the pathogen.  相似文献   

Profile and Content of Residual Alkaloids in Ten Ecotypes of Lupinus mutabilis Sweet after Aqueous Debittering Process     

Cortés-Avendaño  Paola  Tarvainen  Marko  Suomela  Jukka-Pekka  Glorio-Paulet  Patricia  Yang  Baoru  Repo-Carrasco-Valencia  Ritva 《Plant foods for human nutrition (Dordrecht, Netherlands)》2020,75(2):184-191

Plant Foods for Human Nutrition - The evaluation of the level of alkaloids in edible Lupinus species is crucial from a food safety point of view. Debittering of lupin seeds has a long history;...  相似文献   

Ovicidal lectins from Moringa oleifera and Myracrodruon urundeuva cause alterations in chorionic surface and penetrate the embryos of Aedes aegypti eggs     

Robson RV Alves  Tatiana Soares  Elinaldo FL Bento  Ricardo S Roldan‐Filho  Brbara SS Souza  Marcele KN Lima  Jssica S Nascimento  Luana CBB Coelho  Roberto A S  Thmarah A Lima  Gabriel GA Gonalves  Fbio A Brayner  Luiz C Alves  Daniela MAF Navarro  Thiago H Napoleo  Patrícia MG Paiva 《Pest management science》2020,76(2):730-736

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Climate‐based seasonal dynamics of the invasive red palm mite Raoiella indica     

Ricardo Siqueira da Silva  Elisngela Gomes Fidelis  George Amaro  Rodrigo Soares Ramos  Paulo Antnio Santana Junior  Marcelo Coutinho Picano 《Pest management science》2020,76(11):3849-3856

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Delineating site-specific management zones on pasture soil using a probabilistic and objective model and geostatistical techniques     

Moral  Francisco J.  Rebollo  Francisco J.  Serrano  João M. 《Precision Agriculture》2020,21(3):620-636

Precision Agriculture - In recent years, different algorithms have been utilised to delineate management zones, areas with similar properties, within agricultural fields. However, there are few...  相似文献   

Temporal and spatial progress of the diseases caused by the crinivirus tomato chlorosis virus and the begomovirus tomato severe rugose virus in tomatoes in Brazil     

M. A. Macedo  A. K. Inoue-Nagata  T. N. Z. Silva  D. M. S. Freitas  J. A. M. Rezende  J. C. Barbosa  M. Michereff-Filho  A. R. Nascimento  A. L. Lourenção  A. Bergamin Filho 《Plant pathology》2019,68(1):72-84

Efficient management of whitefly-borne diseases remains a challenge due to the lack of a comprehensive understanding of their epidemiology, particularly of the diseases tomato golden mosaic and tomato yellowing. Here, by monitoring 16 plots in four commercial fields, the temporal and spatial distribution of these two diseases were studied in tomato fields in Brazil. In the experimental plots these diseases were caused by tomato severe rugose virus (ToSRV) and tomato chlorosis virus (ToCV), respectively. The incidence of each virus was similar in the plots within a field but varied greatly among fields. Plants with symptoms for both diseases were randomly distributed in three of four spatial analyses. The curves representing the progress of both diseases were similar and contained small fluctuations, indicating that the spread of both viruses was similar under field conditions. In transmission experiments of ToSRV and ToCV by Bemisia tabaci MEAM1 (former biotype B), these viruses had a similar transmission rate in single or mixed infections. It was then shown that primary and secondary spread of ToCV were not efficiently controlled by insecticide applications. Finally, in a typical monomolecular model of disease progress, simulation of the primary dissemination of ToSRV and ToCV showed that infected plants were predominantly randomly distributed. It is concluded that, although the manner of vector transmission differs between ToSRV (persistent) and ToCV (semipersistent), the main dispersal mechanisms are most probably similar for these two diseases: primary spread is the predominant mechanism, and epidemics of these diseases have been caused by several influxes of viruliferous whiteflies.  相似文献