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Tropentag, September 14 - 16, 2022, Prague

"Can agroecological farming feed the world? Farmers' and academia's views."


Effect of exogenous oxytocin residues in the milk Nili-Ravi buffalo following long term oxytocin administration

Talha Omer1, Abdul Sattar2, Nasim Ahmad3, Muhammad Ijaz4, Talha Omer5, Abdul Abdul Moqeet6

1University veterinary and animal sciences lahore, Talha omer, Pakistan
2University of veterinary and animal sciences, lahore, Pakistan, Theriogenology
3University of veterinary and animal sciences, lahore, Pakistan, Theriogenology
4University of Veterinary and Animal Sciences, Lahore, Pakistan, Clinical Medicine, Pakistan
5University Veterinary and Animal Sciences Lahore, Statistics and Computer Science, Pakistan
6University Veterinary and Animal Sciences Lahore, Biotechnology, Pakistan


Abstract


Long-term exogenous oxytocin administration in lactating animals especially buffaloes remains unacceptable by the public due
to misconceptions about its harmful effect on human health after consuming oxytocin injected milk. A study was planned
and conducted to investigate the traces of exogenous oxytocin concentration in milk following long-term usage in buffaloes
for milk letdown. For this purpose, 12 Nili-Ravi buffaloes were equally and randomly divided into three groups having
four animals in each group viz Control (Cont; n=4), Low dose I0IU (Low; n=4), and High dose 30IU (High; n=4), and were
injected oxytocin intramuscularly @ 10IU and 30IU respectively twice daily at the time of morning and evening milking
while control on saline for five months within one week of calving. 50 mL milk samples were collected fortnightly and
monthly basis for oxytocin quantification in raw and boiled milk respectively. The samples were stored at -40C°. The
analysis was carried out at HPLC in Quality Operations Laboratory, UVAS Lahore. Data were analysed through repeated
measure one-way ANOVA to know the treatment effect on traces of oxytocin in treated raw and boiled milk. Results
showed that there was no significant difference (P>0.05) in the concentrations of oxytocin treated and saline-treated milk
of Nili-Ravi buffaloes (raw and boiled) at fortnightly and monthly intervals among three treatment groups. Normally, mean
concentrations estimated in raw and boiled milk samples were 15.95±1.14 ng/mL and 13.55±1.47 ng/mL respectively. It can
be concluded that nonphysiological concentrations of oxytocin traces were not present in raw and boiled milk in lactating
Nili-Ravi buffaloes following long-term exogenous oxytocin administration.


Keywords: Buffalo, exogenous, milk, Nili-Ravi, oxytocin, residues


Contact Address: Talha Omer, University veterinary and animal sciences lahore, Talha omer, Main outfall road lahore, 54000 Lahore, Pakistan, e-mail: talha.omer@uvas.edu.pk


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