Monitor outcomes to ensure long-term PRRS control success. Track diagnostic results and pig performance data across sow, grow-finish, and whole production systems to detect low-level virus circulation, guide decisions, and move herds toward stable or negative status.
The Guilty Gilt Guide was written with a clear objective – to maximize the whole-herd performance of pig populations by helping gilts to reach their full reproductive potential and produce healthy pigs that reach their full genetic potential during grow-finish.
The open reading frames (ORF)5 represents approximately 4% of the porcine repro- ductive and respiratory syndrome virus (PRRSV)-2 genome (whole-PRRSV) and is often determined by the Sanger technique, which rarely detects >1 PRRSV strain if present in the sample.
Porcine reproductive and respiratory syndrome virus (PRRSV) is an important swine pathogen affecting the global swine industry.
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is one of the leading swine pathogens1. The availability of sequence data from PRRSV from widespread geographic territories has enabled a better understanding of the fight against PRRS.
The Porcine Reproductive and Respiratory Virus (PRRSV) genome is a single-strand positive sense RNA of 15 kb in length, containing several structural and non-structural proteins. Among those proteins, GP5 is a structural glycosylated protein and the most variable of PRRSV1. ORF5 sequences from PRRSV type 2 have been grouped per lineages and sublineages2 that can be used as a reference to determine diversity of PRRSV isolates by regions or countries. The objective of this study was to sequence and analyze the ORF5 segment in PRRSV isolates obtained in different regions of Mexico during 2015–2019, thus documenting the genetic variation in the circulating variants of PRRSV according to their different linages and assisting in the understanding of the patterns of geographical distribution of this virus in Mexico.
The use of INGELVAC PRRS vaccines can significantly reduce lung lesions following challenge with heterologous isolates (86- 94% ORF5 nucleotide similarity) in the three-week-old pig respiratory challenge model.1 INGELVAC PRRS MLV demonstrated heterologous protection against challenge with current PRRSV lineage-1 RFLP 1-7-4 and 1-3-4 isolates.2 The objective of this study was to evaluate the efficacy of two commercially available PRRSV vaccines in a three-week-old pig respiratory challenge model, using a heterologous PRRSV lineage-1 RFLP 1-7-4 field strain that was isolated in 2016.
In China, porcine reproductive and respiratory syndrome (PRRS) remains the major disease that endangers and restricts the reproductive performance of sows. PRRS 5 steps is a systemic strategy with multiply tools for PRRS control, which including gilts management and herd closure, vaccination, laboratory diagnostic, biosecurity, production management data analysis. The purpose of this study was to study the effects of different PRRS control measures on sow reproductive performance.