Feed Efficiency and Surplus Feed Intake among Norwegian Red Dairy Cows.

Feed in livestock production is a major cost driver and closely linked to GHG emissions from the sector. Hence, there is a lot of interest to improve feed efficiency of livestock and promote economic and environmental sustainability of livestock production. Residual feed intake (RFI) is one common indicator of feed efficiency of dairy cows.

Feed Efficiency Estimation from Stochastic Feed Requirement Frontier.

Feed accounts 40 to 70 percent of livestock production cost. Therefore, improving feed efficiency of production animals will promote farm profitability. To this end, precise estimation of animal level feed efficiency is important.

Impact of Improper Storage of ChAdOx1-S (AstraZeneca) Vaccine on Its Efficacy and Safety.

Background: In May 2021, there was an incident regarding giving patients AstraZeneca vaccines stored improperly. They were stored at room temperature (21 degrees centigrade) for 18 h, 12 h longer than the producer recommends. Aim of the study: The paper aims to contribute to the body of knowledge concerning the efficacy and safety of the ChAdOx1-S (AstraZeneca) vaccine concerning the requirements for cold supply chain specification.