HAEMATOLOGICAL PARAMETERS IN EXOTIC COWS DURING GESTATION AND LACTATION UNDER
SUBTROPICAL CONDITIONS
A. SATTAR AND R. H.
MIRZA1
Department of Theriogenology,
University
of
Veterinary
and Animal Sciences,
Lahore;
1Livestock
Experiment Station, Bhunikey (Pattoki), District
Kasur,
Pakistan
Abstract
Seventy Holstein-Friesian and
Jersey
cows of different ages kept at the Livestock Experiment Station, Bhunikey (Pattoki),
district
Kasur,
Pakistan
were used for this study. These cows were divided into seven groups having 10
animals in each group. Group numbers 1 to 7 were named as pregnant heifers,
pregnant lactating cows, non-pregnant dry cows, non-pregnant heifers, parturient
cows, pregnant dry cows and non-pregnant lactating cows, respectively. Blood
samples from all the animals were collected and haematological values were
recorded using routine haematological procedures. The highest Hb concentration
(11.32 ± 0.32 gm/dl) was recorded in group-4, while the lowest (9.24 ± 0.35
gm/dl) was observed in group-7. The highest RBCs count and PCV (6.18 ± 0.47 x 106/µl
and 35.51 ± 1.51%) were recorded in group-4 and the lowest (4.55 ± 0.26 x 106/µl
and 29.23 ±1.09%) values were observed
in group-6. The highest MCV, MCH and MCHC (65.26 ± 1.96 fl, 23.50 ± 1.31 pg and
35.75 ± 0.99 gm/dl) were noted in group-5 and the lowest (55.16 ± 1.72 fl, 16.77
± 1.14 pg and 30.09 ± 1.15 gm/dl) were noted in group-2. The highest ESR (7.60 ±
1.15 mm/24 hours) was recorded in group-6 and the lowest (4.89 ± 0.40 mm/24
hours) values were observed in group-5. The highest WBCs count (9.43 ± 1.15 x 103/µl)
was observed in group-1 and the lowest (6.35 ± 0.72 x 103/µl) was
recorded in group-5. Amongst DLC, highest (P<0.05) lymphocyte count (69.10 ±
2.55%) was observed in group-4, while lowest count (56.70 ± 5.16%) was in
group-5. The differences between monocyte, neutrophil, eosinophil and basophil
counts in all the groups were statistically non-significant.