Abstract
In the course of parturition and lactation, sows are susceptible to stress and make an effort to adapt to the newly-formed situation through different endocrine and metabolic mechanisms. In addition to endocrine, biochemical changes, hematological changes also occur in the sow organism. Having these facts in mind, the objective of this work was to examine the changes in the number of erythrocytes, hemoglobin concentration, hematocrit value, hematological indexes: mean corpuscular erythrocyte volume (MCV), mean corpuscular hemoglobin (MCH) in erythrocyte and mean corpuscular hemoglobin concentration (MCHC) in erythrocytes, as well as sedimentation values during the period of lactation in sows. The experiment was performed on ten sows of the Swedish Landrace breed, from which blood was taken on the first day postpartum (1-6 h), and during the third and fourth weeks of lactation. The obtained results of hematological analyses indicated a reduced number of erythrocytes, haemoglobin concentration and hematocrit value during the lactation period. The number of erythrocytes was significantly lower at the end of lactation in comparison with the number established on the first day postpartum. The hemoglobin concentration and hematocrit value were very significantly lower at the end of lactation against the first day postpartum. The values of the hematological indexes MCV, MCH and MCHC did not differ significantly in any of the examined periods. The rate of erythrocyte sedimentation was determined 1 h and 2 h postpartum.
Highlights
Reproduktivni period krma~a, gestaciju i laktaciju prate brojne endokrine i hematolo{ke promene
Vet. glasnik 64 (5-6) 359 - 365 (2010) Mirjana Joksimovi}-Todorovi} i sar.: Crvena krvna slika u krma~a tokom laktacionog perioda oksitocina i prolaktina (Varlos i sar., 2004), menja se i koncentracija pojedinih digestivnih hormona koji optimiziraju digestivne procese zadovoljavaju}i potrebu za pove}anom energijom tokom laktacije (Algers i Uvnäs-Moberg, 2007)
Sve krma~e u ogledu su bile tre}epraskinje sa telesnom masom od 120±10 kg i hranjene su komercijalnim sme{ama ad libitum
Summary
Tokom partusa i laktacije krma~e su podlone stresu i poku{avaju da se prilagode novonastaloj situaciji putem razli~itih endokrinih i metaboli~kih mehanizama. Dobijeni rezultati hematolo{kih analiza ukazali su na smanjenje broja eritrocita, koncentracije hemoglobina i vrednosti hematokrita tokom laktacionog perioda. Ogled je izveden na deset krma~a rase {vedski landras u toku laktacionog perioda (1-6 h po partusu, tre}e i ~etvrte nedelje laktacije) na jednoj farmi u Srbiji. Vet. glasnik 64 (5-6) 359 - 365 (2010) Mirjana Joksimovi}-Todorovi} i sar.: Crvena krvna slika u krma~a tokom laktacionog perioda vana je samo 1 h i 2 h nakon partusa, na kompletu za odre|ivanje sedimentacije „SEDISPEKT“. Rezultati ispitivanja vrednosti parametara crvene krvne loze: broja eritrocita, koncentracije hemoglobina i vrednosti hematokrita u krvi krma~a rase {vedski landras u toku laktacionog perioda (1-6 h po partusu, tre}e i ~etvrte nedelje laktacije) prikazani su u tabeli 1.
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