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Genetic selection for postweaning growth rate shows no relevant negative impact on reproductive performance in breeding rabbit does.
Animal
December 2024
Institute of Animal Science and Technology, Universitat Politècnica de València, Camino de Vera, s/n. 46022 Valencia, Spain.
Genetic selection for growth rate has often been related with potential negative effects on various reproductive traits across different species. Using rabbit as a model, this study has evaluated for the first time how genetic selection for growth rate has affected feed efficiency, resource allocation, blood traits, reproductive performance and survival during five reproductive cycles in rabbit does. To this end, we used 88 reproductive rabbit females from two vitrified and rederived populations of the same paternal line, differing only in 18 generations of genetic selection for growth rate (n = 44 for R19V and n = 44 for RV37V).
View Article and Find Full Text PDFStress Biomarkers in Pigs: Current Insights and Clinical Application.
Vet Sci
December 2024
Clinic of Medicine, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece.
Our study aimed to contribute to the understanding of the stress process in pigs to better assess and control their stress levels. Nowadays, pigs in intensive farming are exposed to several stress factors, such as weaning, transportation, diseases and vaccinations. As a result, the animals experience significant stress responses and inflammatory reactions that affect their health, growth and productivity.
View Article and Find Full Text PDFArtificial intelligence-assisted echocardiographic monitoring in pediatric patients on extracorporeal membrane oxygenation.
Front Cardiovasc Med
December 2024
Department of Ultrasonography, Shenzhen Children's Hospital, Shenzhen, China.
Background: Percutaneous extracorporeal membrane oxygenation (ECMO) is administered to pediatric patients with cardiogenic shock or cardiac arrest. The traditional method uses focal echocardiography to complete the left ventricular measurement. However, echocardiographic determination of the ejection fraction (EF) by manual tracing of the endocardial borders is time consuming and operator dependent.
View Article and Find Full Text PDFUnmasking culprits: novel analysis identifies complement factors as potential therapeutic targets to mitigate inflammation during children's heart surgery.
Eur J Med Res
December 2024
Division of Cardiac Surgery, IWK Children's Heart CentreDivision of Cardiac Surgery, Dalhousie University, Halifax, Canada.
Background: Cardiopulmonary bypass (CPB) causes systemic inflammation during pediatric cardiac surgery, which can contribute to post-operative organ dysfunction and prolonged recovery. This study aims to identify key inflammatory mediators related to this clinically significant immunologic response.
Methods: Pediatric patients were enrolled in a single-arm prospective clinical study (NCT05154864) and received standard cardiac operation, CPB and subzero-balance ultrafiltration.
Lysine requirement of weaned piglets.
Animal
September 2024
Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Scheldeweg 68, 9090 Melle, Belgium. Electronic address:
Lysine, often referred to as the 'first limiting amino acid' in pig nutrition, plays a pivotal role in growth performance. Variability in lysine requirements arises due to factors such as age, sex and environmental conditions. Optimising pig health and production efficiency and minimising nitrogen excretion require accurate knowledge of estimated lysine requirements accounting for factors such as genetics, feeding practices, scientific advancements, and environmental considerations.
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