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References from Circannual pattern of milk crude protein and urea nitrogen and their relationship in Holstein cows in Swiss grassland-based dairy systems over a 30-year period. Local targets link to admitted publications; unresolved targets remain external evidence.
Unresolved reference
External reference
Genetic variation in milk urea nitrogen concentration of dairy cattle and its implications for reducing urinary nitrogen excretion
10.1017/s1751731119000235 · 2019 · External reference
Long-term area-mean temperature series for Switzerland—Combining homogenized station data and high-resolution grid data
10.1002/joc.5460 · 2018 · External reference
Seasonal variations in the composition of Holstein cow's milk and temperature–humidity index relationship
10.1017/s1751731114000032 · 2014 · External reference
A statistical evaluation of animal and nutritional factors influencing concentrations of milk urea nitrogen
10.3168/jds.s0022-0302(97)76262-3 · 1997 · External reference
Strategies for optimizing nitrogen use by ruminants
10.1017/s1751731110000911 · 2010 · External reference
Effects of heat stress on feed intake, milk yield, milk composition, and feed efficiency in dairy cows: A meta-analysis
10.3168/jds.2023-24059 · 2024 · External reference
Partial substitution of soybean meal with a yeast-derived protein in the diet of dairy cows under a rotational grazing system
10.1016/j.livsci.2019.05.008 · 2019 · External reference
Review of the relationship between milk urea nitrogen and days in milk, parity, and monthly temperature mean in Iranian Holstein cows
10.3168/jds.2011-4349 · 2012 · External reference
Forage systems and sustainability of milk production: Feed efficiency, environmental impacts and soil carbon stocks
10.1016/j.jclepro.2020.121012 · 2020 · External reference
Blood amino acids profile responding to heat stress in dairy cows
10.5713/ajas.16.0428 · 2018 · External reference
Seasonal variation in the Dutch bovine raw milk composition
10.3168/jds.2009-2146 · 2009 · External reference
Dairy cattle in a temperate climate: The effects of weather on milk yield and composition depend on management
10.1017/s1751731114002456 · 2015 · External reference
Milk urea nitrogen as a tool to monitor the protein nutrition of dairy cows
10.3168/jds.s0022-0302(97)76309-4 · 1997 · External reference
The association between milk urea nitrogen and DHI production variables in western commercial dairy herds
10.3168/jds.s0022-0302(03)73899-5 · 2003 · External reference
Nutritional strategies to improve nitrogen use efficiency by grazing dairy cows
10.4067/s0718-58392011000400019 · 2011 · External reference
Using blood urea nitrogen to predict nitrogen excretion and efficiency of nitrogen utilization in cattle, sheep, goats, horses, pigs, and rats
10.2527/2005.834879x · 2005 · External reference
Proxy measures and novel strategies for estimating nitrogen utilisation efficiency in dairy cattle
10.3390/ani11020343 · 2021 · External reference
Evaluation of milk urea nitrogen as a diagnostic of protein feeding
10.3168/jds.s0022-0302(04)73178-1 · 2004 · External reference
Non-genetic factors affecting somatic cell count, milk urea nitrogen, test-day milk yield, and milk protein percent in Czech dairy cattle using individual test-day records
2009 · External reference
Managing variations in dairy cow nutrient supply under grazing
10.1017/s1751731111002394 · 2013 · External reference
Infrared milk analyzers: Milk urea nitrogen calibration
10.3168/jds.2020-18772 · 2021 · External reference
Unresolved reference
External reference
Effects of heat stress and plane of nutrition on lactating Holstein cows: I. Production, metabolism, and aspects of circulating somatotropin
10.3168/jds.2008-1641 · 2009 · External reference
Effects of heat stress on markers of skeletal muscle proteolysis in dairy cattle
10.3168/jds.2022-22678 · 2023 · External reference
The continuing challenge of agricultural nitrogen loss to the environment in the context of global change and advancing research
2008 · External reference
Cow-level factors associated with nitrogen utilization in grazing dairy cows using a cross-sectional analysis of a large database
10.3168/jds.2023-23606 · 2023 · External reference
Effect of temperature and humidity on milk urea nitrogen concentration
10.3390/ani13020295 · 2023 · External reference
Invited review: Emission and mitigation of greenhouse gases from dairy farms: The cow, the manure, and the field
10.15232/aas.2018-01803 · 2019 · External reference
Effect of heat stress on bacterial composition and metabolism in the rumen of lactating dairy cows
10.3390/ani9110925 · 2019 · External reference