Results 131 to 140 of about 62,665 (307)

The Adoption and Profitability of rbST on Connecticut Dairy Farms [PDF]

open access: yes
This work estimates Probit and Tobit models of the adoption of rbST on Connecticut dairy farms and then endogenizes that adoption in estimates of milk production and farm profit rates.
Foltz, Jeremy D., Chang, Hsiu-Hui
core   +1 more source

Dynamic fecal microenvironment properties enable predictions and understanding of peripartum blood oxidative status and nonesterified fatty acids in dairy cows

open access: yesJournal of Dairy Science
: The transition period in dairy cows is a critical stage and peripartum oxidative status, negative energy balance (NEB), and inflammation are highly prevalent.
Sen-Lin Zhu   +7 more
doaj   +1 more source

Comparison of the effects of rectal examination on heart rate and eye temperature in cattle of different parity

open access: yesVeterinary Record, EarlyView.
Abstract Background Rectal examination is a routine procedure in bovine reproductive management, but its physiological impact may vary depending on the cow's age and parity. Stress responses during such procedures can negatively affect animal welfare and compliance, especially in inexperienced animals.
Atakan Cortu, Orsan Gungor
wiley   +1 more source

Open Cow Replacement Decisions: an Application of Asset Replacement Theory [PDF]

open access: yes
Beef producers must decide what to do with a cow that fails to conceive during the breeding season. Keeping the open cow results in a years expenses without any revenue.
Anderson, John D., Ibendahl, Gregory A.
core   +1 more source

Effects of coenzyme Q10 on growth performance, rumen fermentation, blood metabolites, antioxidant status, and immune responses of pre-weaned Holstein dairy calves

open access: yesAnimal Nutrition
This study was conducted to investigate the effects of coenzyme Q10 (CoQ) dietary supplementation on growth performance, rumen fermentation, diarrhea frequency, and serum biochemical metabolites of pre-weaned Holstein dairy calves.
Mahmoud M. Abdelsattar   +7 more
doaj   +1 more source

Temporal and seasonal trends of bovine tuberculosis in the Irish cattle population (2008–2024)

open access: yesVeterinary Record, EarlyView.
Abstract Background Bovine tuberculosis (bTB) has substantial impacts on the Irish cattle industry. Between 2016 and 2024, its burden increased in Irish cattle. As an initial step towards understanding drivers of this increase, we explore long‐term trends in measures of bTB burden and cattle demographics in Ireland. Methods Using data from 2008 to 2024,
Jamie M. Madden   +8 more
wiley   +1 more source

"Teat condition in dairy cows"

open access: yes, 2004
The dairy cow's teat is the first line of defence against mastitis pathogens. The milking process may affect the teat's condition, increasing the risk of mastitis. It is well-proven that teat-ends with severe erosions or broken skin will have an increased risk of mastitis.
openaire   +3 more sources

Understanding Farmer Behaviour for Successful Climate Change Mitigation in Voluntary Initiatives

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT Private and voluntary initiatives, such as voluntary carbon markets, can support public policies aimed at reducing greenhouse gas (GHG) emissions in agriculture. This study investigates the impact of behavioural factors (reluctance to change) and social dynamics (peer imitation) on the adoption of two mitigation practices on Swiss dairy and ...
Marta Tarruella   +5 more
wiley   +1 more source

Effects of vitamin C on production performance, rumen fermentation, and blood antioxidant indices in heat-stressed Holstein dairy cows

open access: yesFrontiers in Veterinary Science
Heat stress exerts severe detrimental effects on lactation performance, rumen health, and antioxidant status in dairy cows, inflicting substantial economic losses on the global dairy industry.
Hongsheng Du   +9 more
doaj   +1 more source

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