Results 61 to 70 of about 8,538 (245)

Estimation of the Genetic Components of (Co)variance and Preliminary Genome-Wide Association Study for Reproductive Efficiency in Retinta Beef Cattle

open access: yesAnimals, 2023
In this study, we analyzed the variation of reproductive efficiency, estimated as the deviation between the optimal and real parity number of females at each stage of the cow’s life, in 12,554 cows belonging to the Retinta Spanish cattle breed, using ...
José María Jiménez   +5 more
doaj   +1 more source

Identification of genomic regions related to age at first calving and first calving interval in water buffalo using single‐step GBLUP

open access: yesReproduction in Domestic Animals, 2020
AbstractIn Brazil, water buffaloes have been used to produce milk for mozzarella cheese production. Consequently, the main selection criterion applied for the buffalo genetic improvement is the estimated mozzarella yield as a function of milk, fat and protein production.
Francisco Ribeiro de Araujo Neto   +8 more
openaire   +4 more sources

Overview of the re‐evaluation of trace elements as nutritional feed additives in the European Union: characterization, safety, and efficacy

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract The re‐evaluation of feed additives in the European Union was outlined in the Regulation (EC) No 1831/2003. The primary objectives were to ensure safety and verify efficacy, as well as to update authorizations and phase out unsafe additives or those in which the industry expressed no interest.
Gloria López‐Gálvez   +11 more
wiley   +1 more source

Validating antler‐ and movement‐based estimates of caribou reproduction using video camera collars Validation des estimations de la reproduction du caribou basées sur la rétention des bois et  sur le déplacement à l'aide de colliers‐caméras

open access: yesThe Journal of Wildlife Management, EarlyView.
We used GPS video camera collar data from barren‐ground caribou in the Porcupine and Western Arctic herds to validate antler‐ and movement‐based methods for estimating annual reproductive metrics. Antler retention was highly accurate for estimating parturition, but the movement methods we tested performed marginally for estimating parturition and ...
Heather E. Johnson   +6 more
wiley   +1 more source

Recovery of southern mountain caribou habitat following wildfire in Ulkatcho territory, British Columbia, Canada

open access: yesThe Journal of Wildlife Management, EarlyView.
Caribou forage lichens were present in post‐burn lodgepole pine stands multiple decades before stem‐density was likely open enough to attract wintering caribou. We posit that the prolonged self‐thinning of lodgepole pine after fire may be a greater limiting factor than lichen abundance for habitat recovery in lodgepole pine forests.
Olivier P. Bélanger‐Jumeau   +2 more
wiley   +1 more source

Genetic relationships between calving date, calving interval, age at first calving and type traits in beef cattle [PDF]

open access: yesLivestock Production Science, 2002
In this paper the genetic relationships between major reproductive traits in beef cattle (Calving Date, Calving Interval and Age at First Calving) and type traits have been estimated to evaluate the usefulness of type classification in predicting reproductive performance in beef cattle.
Gutiérrez, Juan P.   +5 more
openaire   +2 more sources

MRI‐based deep learning models match or surpass physician performance for early detection and staging of avascular necrosis of the femoral head: A systematic review

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Efficient and reliable magnetic resonance imaging (MRI)‐based diagnosis of early avascular necrosis of the femoral head (AVNFH) is essential for guiding treatment but remains challenging due to variability in clinician experience. Deep learning (DL) models offer a promising solution. This review evaluates and summarizes the performance
Khaled Skaik   +4 more
wiley   +1 more source

Advancing Therapies for Mycobacterial Diseases: From Small Molecules to Host‐Directed Strategies

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT The global burden of multidrug‐resistant tuberculosis (MDR‐TB) and the rising incidence of nontuberculous mycobacterial (NTM) infections highlight the urgent need for innovative therapeutic strategies. Current treatments are prolonged, toxic, and increasingly compromised by resistance and limited diagnostic capacity.
Tânia Silva   +23 more
wiley   +1 more source

Genetic parameters and environmental effects on temperament score and reproductive traits of Nellore cattle

open access: yesAnimal, 2012
Animal temperament is a trait of economic relevance and its use as a selection criterion requires the identification of environmental factors that influence this trait, as well as the estimation of its genetic variability and interrelationship with other
D. Barrozo   +5 more
doaj   +1 more source

Forecasting the impact of food‐provisioning and other stressors on a marine top‐predator population

open access: yesOikos, EarlyView.
Wildlife tourism can alter animal behavior, affect vital rates and diminish population viability but its impact in the context of other human‐ and environmental disturbances, remain largely unstudied. Using simulation models and leveraging a robust long‐term dataset spanning eight years, we evaluated the contribution of wildlife feeding, in the context
Valeria Senigaglia   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy