As one of the most important ruminant breeds, Holstein cattle supply a significant portion of milk and dairy for human consumption, playing a crucial role in agribusiness. The goal of our study was to examine the molecular adaptation of gastrointestinal tissues that facilitate milk synthesis in dairy cattle. DATA DESCRIPTION: We performed RNA-seq analysis on epithelial cells from the rumen, duodenum, and colon at eight different time points: Days 3, 14, 28, 45, 120, 220, and 305 in milk, as well as the dry period.
View Article and Find Full Text PDFPurpose: To determine the effectiveness of administering intravenous (IV) tranexamic acid (TXA) on altering visual field clarity (VFC) during arthroscopic hip preservation surgery for patients with femoroacetabular impingement syndrome (FAIS).
Methods: This randomized, double-blind, parallel-design trial was conducted over a seven-month period between October 2023 and May 2024 at a single tertiary musculoskeletal hospital. Inclusion criteria included consecutive patients that were diagnosed with FAIS through clinical history, physical exam and advanced imaging and indicated for hip arthroscopy after having failed conservative management.
Pest Manag Sci
January 2025
Background: Roof rats (Rattus rattus) are a substantial pest throughout citrus crops, yet little is known about efficacious, cost-effective strategies to manage this rodent. Therefore, we developed two integrated pest management (IPM) programs that incorporated elevated bait stations containing diphacinone-treated oats and trapping, and we compared those programs to a bait-station only approach to determine which strategies were most practical for the management of roof rats in citrus orchards.
Results: Bait applications substantially reduced rat activity within orchards.
Native ecosystem and biodiversity loss from land use conversion into human-modified landscapes are evident in the United States and globally. In addition to public land conservation, there is an increase in private land conservation through conservation easements (CEs) across exurban landscapes. Not every CE was established strictly for biodiversity protection and permitted land uses can increase human modification.
View Article and Find Full Text PDFPurpose: To synthesize the current literature on posterolateral corner (PLC) reconstruction and repair, focusing on a comparison of surgical techniques and outcomes based on injury chronicity in the setting of sports-related ligament tears.
Methods: A systematic review of the literature, including queries of the PubMed/MEDLINE, Embase, and Cochrane Library databases, was performed in March 2024. Studies were included if they were of Level IV evidence or greater, reported PLC reconstruction or repair outcomes, and had a minimum 2-year follow-up.
Background: Children in out-of-home-care (OOHC) are a vulnerable population, typically with complex needs, however there is minimal research examining the behavioural presentations that lead to the increased use of acute emergency care by OOHC children.
Objective: This study aimed to describe differences in lifetime complexity factors identified during ambulance attendances between children with and without an identified history of OOHC. Further, this study aimed to describe whether having an identified history of being in OOHC was associated with increased utilisation of emergency care resources and increased likelihood of multiple ambulance attendances.
Research into mosquito-borne illnesses faces hurdles because feeding fresh animal blood to rear female mosquitoes presents logistical, economic, and safety challenges. In this study, a shelf-stable additive (spray-dried porcine blood; SDPB) hypothesized to supply accessible hemoglobin was evaluated within an alternative meal (AM) containing whey powder and PBS for rearing the yellow fever mosquito . LC-MS/MS proteomics, microbial assays, and particle reduction techniques confirmed and characterized the functionality of hemoglobin in SDPB, while engorgement, fecundity, egg viability, and meal stability bioassays assessed AM performance.
View Article and Find Full Text PDFPresence-absence variations (PAVs) are important structural variations, wherein a genomic segment containing one or more genes is present in some individuals but absent in others. While PAVs have been extensively studied in plants, research in cattle remains limited. This study identified PAVs in 173 Holstein bulls using whole-genome sequencing data and assessed their associations with 46 economically important traits.
View Article and Find Full Text PDFDuring lactation, dairy cattle's digestive tract requires significant adaptations to meet the increased nutrient demands for milk production. As we attempt to improve milk-related traits through selective pressure, it is crucial to understand the biological functions of the epithelia of the rumen, small intestine, and colonic tissues in response to changes in physiological state driven by changes in nutrient demands for milk synthesis. In this study, we obtained a total of 108 transcriptome profiles from three tissues (epithelia of the colon, duodenum, and rumen) of five Holstein cows, spanning eight time points from the early, mid, late lactation periods to the dry period.
View Article and Find Full Text PDFFeed efficiency is important for economic profitability of dairy farms; however, recording daily DMI is expensive. Our objective was to investigate the potential use of milk mid-infrared (MIR) spectral data to predict proxy phenotypes for DMI based on different cross-validation schemes. We were specifically interested in comparisons between a model that included only MIR data (model M1); a model that incorporated different energy sink predictors, such as body weight, body weight change, and milk energy (model M2); and an extended model that incorporated both energy sinks and MIR data (model M3).
View Article and Find Full Text PDFObjective: With same-day online alcohol sales increasing, there is a need to study their regulation. Test purchasing of alcohol home delivery was conducted to measure compliance with regulations for identification checks and unattended deliveries in two Australian jurisdictions (Perth, Western Australia, and Geelong, Victoria), which have differing regulations.
Method: Alcohol orders for same-day or rapid (<2 hours) delivery on Friday and Saturday nights were made by research assistants ages 18-24 years in Perth ( = 34) and Geelong ( = 29).
Large datasets allow estimation of feed required for individual milk components or body maintenance. Phenotypic regressions are useful for nutrition management, but genetic regressions are more useful in breeding programs. Dry matter intake records from 8,513 lactations of 6,621 Holstein cows were predicted from phenotypes or genomic evaluations for milk components and body size traits.
View Article and Find Full Text PDFPatient-reported outcomes (PROs) are increasingly used in healthcare research to provide evidence of the benefits and risks of interventions from the patient perspective and to inform regulatory decisions and health policy. The use of PROs in clinical practice can facilitate symptom monitoring, tailor care to individual needs, aid clinical decision-making and inform value-based healthcare initiatives. Despite their benefits, there are concerns that the potential burden on respondents may reduce their willingness to complete PROs, with potential impact on the completeness and quality of the data for decision-making.
View Article and Find Full Text PDFMuscles consume metabolic energy for force production and movement. A mathematical model of metabolic energy cost will be useful in predicting instantaneous costs during human exercise and in computing effort-minimizing movements via simulations. Previous in vivo data-derived models usually assumed either zero or linearly increasing cost with force, but a nonlinear relation could have significant metabolic or behavioural implications.
View Article and Find Full Text PDFVarious methods have been proposed to estimate daily yield from partial yields, primarily to deal with unequal milking intervals. This paper offers an exhaustive review of daily milk yields, the foundation of lactation records. Seminal advancements in the late 20th century concentrated on two main adjustment metrics: additive additive correction factors (ACF) and multiplicative correction factors (MCF).
View Article and Find Full Text PDFFeed costs can amount to 75 percent of the total overhead cost of raising cows for milk production. Meanwhile, the livestock industry is considered a significant contributor to global climate change due to the production of greenhouse gas emissions, such as methane. Indeed, the genetic basis of feed efficiency (FE) is of great interest to the animal research community.
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