By -Dr.V.Rajnikanth B.V.Sc.,
Veterinary Assistant surgeon
Theni, Tamilnadu.
ABSTRACT:
An organised farm have more than sixty cows.In this farm past six month period of time ,fiften cows were calved
All cows were given the allontoic fluid orally upto two litres immediately after parturition.All fourteen cows were shed the fetal membrane within 2-3hours period of time.Fetal membrane of one cow removed manually with out any difficulties.
KEY WORDS:
Allontoic fluid,fetal membrane,cow
INTRODUCTION:
Allontoic fluid is clear,watery,amber in coluor and contain albumin,fructose and urea(SJ Roberts 1971).Allontoic fluid of cow contain metabolic constituents,electrolytes,enzymes,hormones and other structures(ESE Hafez and B Hafez,2013).Oestrone,oestradiol,oestrone sulphate and oestrodial sulphate are present in both amnion and allontoic fluid of cows.Oestrone sulphate is major component of allontoic and amniotic fluids.Peak concentration of oestrone sulphate is 475 ng/ml around day 133.Consistent changes of oestrone and estrodial were found in amniotic fluid but not in allontoic fluid after second half of pregnancy(Robertson HA et al(J Reprod Fertil)1979).Prostaglandin(PG)F are also measured in allontoic fluid(RM Eley,WW Thatcher,Fuller W Bazer,1979).
MATERIALS AND METHOD:
In the well organised farm have more than sixty cows.In the last six month period fiftenn cows were calved normally.During parturition in the second stage labour allontoic fluids collected after rupture of allontoic sac by clean vessel.Then allontoic fluid filtered through clean cotton cloth.Upto two litres of allontoic fluid were given orally,immediately after parturition.Fetal membrane of fourteen cows shed within 2-3hours after parturition.Fetal membrane of one cow removed manually with out any difficulties.
DISCUSSION:
The presence of oestrone sulphate and prostaglandin(PG)F in the allontoic fluid play a important role in the process of expulsion of fetal membrane.Oestrone sulphate exert a definite action on the uterus by increasing its tone and muscular activity,stimulating the flow of mucous,increasing the circulation and relaxing the cervix(SJ Roberts,et al 1971).Prostaglandin F2 alpha and its analogues have also been used as ecbolic agents in post partum cow.Prostaglandin may assist in the detachment of membrane through direct action upto placentomes rather than just by an ecbolic action(Gross et al,1986).Oral feeding of allontoic fluid immediately after parturition is very useful one for expulsion of fetal membrane.
REFERENCES:
1.Conjugated and unconjugated estrogen in fetal and maternal fluids of cow by HA Robertson 1979-cited by 122-related articles.
2.Hormonal and physical changes associated with bovine conceptus development. RM Eley,WW Thatcher,Fuller W Bazer Reproduction 55(1),181-190,1979.
3.Gross TS;Williams WF,Moreland TW,Therioginology.1986:26;365-370.
4.Reproduction in Farm Animals by ESE Hafez and B Hafez,7th Edition,Wiley blackwell 2013,page no 149.
5.Veterinary Obstetrics and Genital Diseases by Stephen J Roberts,2nd Edition,CBS Publishers and Distributors,page no 41.
