Results 71 to 80 of about 11,907 (273)

Age at first calving and first lactation milk yield.

open access: yes, 2018
Predicted means (± 95% confidence intervals) obtained from mixed effects multivariable regression modelling for first lactation (305-day) milk yield (kgs) by different age at first calving (AFC) class.
Amy Coates (5390834)   +5 more
core   +1 more source

A review of high nature value farming systems in Europe: Biodiversity, ecosystem services, drivers, innovations and future prospects

open access: yesPeople and Nature, EarlyView.
Abstract Farming systems of high natural and cultural value represent approximately 30% of farmlands in the European Union and are associated with a high species and habitat diversity and/or the presence of species of European conservation concern. This study aims to synthesize the existing knowledge on the assessment of biodiversity and ecosystem ...
Elsa Varela   +4 more
wiley   +1 more source

Age at first calving and first lactation somatic cell count.

open access: yes, 2018
Back-transformed predicted means (± 95% confidence intervals) obtained from mixed effects multivariable regression modelling for first lactation (305 day) log somatic cell count (cells/ml) by different age at first calving (AFC) class.
Amy Coates (5390834)   +5 more
core   +1 more source

Grass species and climatic season impact on Rhipicephalus microplus temporal abundance in a tropical region

open access: yesPest Management Science, EarlyView.
The interaction between grass species and climatic season shapes the population dynamics of the cattle tick, Rhipicephalus microplus. This information highlights the potential of forage species to influence off‐host tick dynamics. Additionally, minimum temperature and minimum relative humidity were the most influential microclimatic predictors of ...
Valesca Henrique Lima   +8 more
wiley   +1 more source

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann   +2 more
wiley   +1 more source

A combination of nutrition and genetics is able to reduce age at puberty in Nelore heifers to below 18 months

open access: yesAnimal, 2018
Nelore heifers usually begin their reproductive life at ⩾24 months of age mainly due to suboptimal nutritional conditions and genetics. This study aimed to determine the effect of expected progeny difference (EPD) for age at first calving and average ...
M.V.C. Ferraz, Jr   +8 more
doaj   +1 more source

Effect of butorphanol in combination with xylazine during castration of calves: A randomised trial under field conditions

open access: yesVeterinary Record, EarlyView.
Abstract Background In horses, cats and dogs, the opioid butorphanol has been proven effective in management of visceral pain and for peri‐ and postoperative pain relief. The aim of this study was to evaluate physiological responses and indicators of noxious stimuli when adding butorphanol to xylazine for sedation of bull calves during surgical ...
Axel Sannö   +3 more
wiley   +1 more source

Genetic analysis of reproductive performance of Frieswal cattle at Military Farm, Ambala [PDF]

open access: yesVeterinary World, 2015
Aim: This study was carried out to investigate the genetic analysis of reproductive performance of Frieswal cattle at Military Farm, Ambala. Materials and Methods: A total number of 3005 lactation records of 1147 Frieswal cows over a period of 15 years ...
Jagdeep Kumar   +5 more
doaj   +1 more source

Assessment of current colostrum feeding practices and passive transfer of immunity in dairy herds in Great Britain: A cross‐sectional study

open access: yesVeterinary Record, EarlyView.
Abstract Background Updated targets for measuring transfer of passive immunity (TPI) at the herd level have been suggested, but the current performance of dairy herds in Great Britain is unknown. Methods A cross‐sectional study was performed. Serum total protein (STP) data collected between October 2022 and October 2023 by 21 veterinary practices were ...
George Lindley   +3 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

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