PMID: 8594842Sep 1, 1995Paper

Changes in calcium concentration in bovine udder secretions during the preparatory stages of labor in relation to prediction of the time of calving

Zentralblatt für Veterinärmedizin. Reihe A
E Grunert, E H Birgel

Abstract

Nine heifers and 10 cows of the breed 'German Black Pied' were used in order to evaluate the practicability of measurement of changes in concentration of calcium in udder secretions during the preparatory stage of labour for the prediction of the time of calving. A gradual increase in the concentration of calcium in udder secretions ante partum (a.p.) was determined. Eleven days a.p., the average concentration of calcium was 14.2 mmol/l. Thereafter, the calcium content gradually increased and reached a mean value of 52.1 mmol/l sub partu (secretions of all udder quarters), and 52.4 mmol/l and 51.8 mmol/l in secretions of fore and hind quarters, respectively. Despite the increase in calcium, the time of calving in individual animals could not be predicted reliably, or with a high probability, because the increase in calcium content did not occur in all cows, the variation of the values was high, and the differences between values during the last 48 h a.p. were only small.

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.