Abstract:
Studies have been
conducted in the Dancu Research and
Development Station for Cattle Breeding,
Iași County, dairy farm, on Romanian
Frisean (BNR) cows. Investigations on the
biochemical profile were made in cows with
reproductive disorders and in clinically
healthy cows at different stages of lactation.
There were made groups of 10 cows: four
experimental groups of cows with puerperal
genital infections (E1), cows with chronic
genital infections (E2), postpartum anestrus
cows (E3), cows with repeated matings (E4)
and three control groups of cows in lactation
stage: early, 0-2 months (M1), advanced, 4-6
months, (M2) and late, 6-7 months (M3).
Results showed some biochemical changes
in relation to the type of reproductive
disorders and the stage of lactation: in cows
with puerperal genital infections (group E1),
compared with M1 group, have been found
elevated mean values of serum globulin
(62.70 %) and serum enzymes - ALT (45.50
± 0.2 U / l) and values below the species
inferior limit of serum enzymes - AP (7.19
± 2.2 U / l) and of phosphatemia. In cows
with chronic genital infections (group E2),
compared with M2 group, the biochemical
prophile showed low levels of total serum
protein (6.30 ± 0.64 to 9.14 ± 0.5 g / dl) (p
<0.05), of serum urea (16.00 ± 0.3 mg / dl),
alkaline reserve, calcium (8.9 ± 0.10,
respectively, 11.42 ± 2.10 mg / dl) and of
serum enzymes - AST, GGT and AP,
indicating some liver and calciumphosphorus
metabolism disorders, and
elevated values to the species upper limit, in
terms of cholesterol and serum enzymes –
ALT. In cows with postpartum anestrus (E3
group), compared with cows in M2 group
were found slightly higher average values of
serum albumin (45.55 ± 0.4 to 40.0 ± 1.5),
mean values that are above the species
upper limit for the serum enzymes - ALT
and low average values to the lower limit
for serum urea, alkaline reserve, alkalin
phosphatase and Ca/P ratio. In cows with
repeated matings (E4 group), compared with
M2 and M3 groups have been revealed
decreased mean values of serum total
protein (g/dl), (6,7±0,6 compared to
8,3±0,6, respectively 9,14±0,5), and
increased values to the upper limit for serum
albumin (%), (53,73±0,6 compared to
40,0±1,5, respectively 45,40±0,4), low
values for serum ureea (7,3±0,2 mg/dl),
blood glucose, alkaline reserve, alkaline
phosphatase, calcemia, phosphatemia and increased values above the higher limit for
serum enzymes – ALT (U/l) (67,4±3,6).
