Results 111 to 120 of about 676,864 (307)
Studies of Autumn calving suckler cows, bulls at pasture and winter grazing [PDF]
, 2010 End of project reportMost beef and dairy cows are spring calving leading to distinct seasonality of supply. Calving a proportion of the beef herd in the autumn would lead to a more uniform annual supply of cattle for slaughter and potentially increase ...
Black, Alistair D +3 more
core
Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope
Animal Research and One Health, EarlyView.FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad +7 more
wiley +1 more source
The Mad Cow Disease Trade Ban and Changes in the U.S. and Canadian Cull Cow Markets: A DAG Analysis [PDF]
A directed a cyclical graph (DAG) methodology was used to discover changes in price relationships among cull cow markets in the U.S. and Canada resulting from the trade ban initiated by the discovery of bovine spongiform encephalopathy (BSE, also called ...
Feuz, Dillon M., Stockton, Matthew C.
core +1 more source
Animal Research and One Health, EarlyView.Unregulated inflammation increases non‐esterified fatty acids (NEFAs), and triggers multi‐pathway hepatocyte damage including oxidative stress, mitochondrial dysfunction, and metabolic disorders in dairy cows. ABSTRACT Circulating concentrations of nonesterified fatty acids (NEFAs) are elevated due to lipid mobilization from adipose tissue in ...
Siqing Mao +12 more
wiley +1 more source
Open Cow Replacement Decisions: an Application of Asset Replacement Theory [PDF]
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
Establishment of goat mammary organoid cultures modeling the mammary gland development and lactation
Journal of Animal Science and BiotechnologyBackground Although several cell culture systems have been developed to investigate the function of the mammary gland in dairy livestock, they have potential limitations, such as the loss of alveolar structure or genetic and phenotypic differences from ...
Lei Jia +9 more
doaj +1 more source
Veterinary SciencesThis study investigated the protective effects and mechanisms of cow placenta peptides (CPP) on intestinal barrier damage in aging model mice. Forty-eight male ICR mice were assigned to four groups: a control group (N), an aging model group (M), a CPP ...
Yuquan Zhao +11 more
doaj +1 more source
Environmental sampling to assess the bioburden of Mycobacterium avium subspecies paratuberculosis in drylot pens on California dairies. [PDF]
, 2019 Mycobacterium avium subspecies paratuberculosis (MAP) is a bacterium that can cause substantial economic losses in infected dairy herds due to reduced milk production and increased cow-replacement costs.
Adaska, John M +4 more
core
An Economic Performance Analysis of the Beef Cow-herd Enterprise Using a Stochastic Frontier Function [PDF]
Standardized Performance Analysis (SPA) data from Texas, Oklahoma, and New Mexico were used to examine the economic performance of beef cow herd operations in the Southern Plains region by measuring their technical efficiency index.
Bevers, Stanley J. +2 more
core +1 more source
AntioxidantsOur preliminary study identified dairy cow placenta extract (CPE) as a mixture of peptides with potent antioxidant activity both in vivo and in vitro. However, the specific antioxidant peptides (AOPs) responsible for this activity were not yet identified.
Xinyu Tian +10 more
doaj +1 more source