The experiment was carried out on a group of 180 Holstein-Friesian dairy cows. The used animals were 3 to 7 years old. All animals underwent pregnancy testing: ultrasonography with a real-time, B-mode diagnostic ultrasound Scanner (Alloka SSD 500, Japan) equipped with a - 0 MHz linear-...
Identifying non-pregnant cows early and accurately after insemination and calving means shorter calving intervals, increased milk production, increased reproductive efficiency and more profit. Previous testing for pregnancy in cows relied on testing levels of progesterone and estrogen hormones, but these lev...
The accuracy of the forecast for pregnancy (positive forecast) thus is often lower than desirable, in most cases ranging between 75% and 90%. The negative forecast, however, is more accurate because cows having low progesterone concentrations in milk or blood 21 days postbreeding will almost ...
Therefore, the currently tested PCR assay was unreliable for prenatal fetal sexing in pregnant beef cattle at the stage of pregnancy when beef cows are typically handled for pregnancy evaluation. Under our laboratory conditions, the minimum concentrations of cffDNA needed for successful detection in ...
paper describes detection of environmental contaminants, pregnancy diagnosis and many other useful applications of animal dried samples. The paper also analyses dried sample stability and storage conditions for antibodies, viruses and other substances. Finally, recent developments and future research for DBS...
A possible explanation for the greater frequency of BLVp24 expression in cattle could relate to hormones. Dairy and beef cows are kept in a constant state of pregnancy and lactation during their adult life, whereas most human females are not. BLV genomic transcription is hormone responsive via a...
Pregnancy (Cows & sheep)• High fat diets• Fasting or starvation• Impaired liver function How long should you centrifuge a urine sediment 3-5 minutes at what speed should you spin a urine sediment 1000-2000 rpm What do urine cast look like ...
(e.g. inflammatory leucogram)69. It is known to be diffused from blood into the milk, but it is also produced endogenously by milk leukocytes and epithelial cells during mammary gland processes70. For these reasons, haptoglobin has been proposed has an inflammatory indicator in dairy cows70. ...
From the testing of close to 1000 serum samples collected from 230 dairy cows, we clearly detected an immune status change in the periparturient cows around prepartum period and this change is associated with the IgG1/IgG2 relatively quantity change during this time. Except for a few cases,...
Naturally occurring neonatal isoerythrolysis has not been reported in cattle, but it occurs in some calves born to cows previously vaccinated foranaplasmosisor other bovine origin vaccines containingRBC membranes(Dimmock and Bell, 1970;Lutheret al., 1985). Several blood group isoantigens have been...