17 R. Kausar G. Muhammad Z. I. Qureshi F. Mahmood Journal of Animal and Plant Sciences JAPS 20152015/06/01 25 3 645-649 1018-7081 NA <p>Quantitative protein profiling of milk of Nili-Ravi buffaloes, Sahiwal and cross-bred cows were performed. Total proteins and caseins were the highest in milk of cross-bred cows while, whey proteins were the maximum in Sahiwal cow&rsquo;s milk. The mean values of milk total proteins were 78.103&plusmn;1.878, 59.333&plusmn;0.611 and 81.594&plusmn;2.026 mg/mL for Nili-Ravi buffaloes, Sahiwal cows and cross-bred cows, respectively. The milk lactoserum proteins were comparatively higher in milk of Sahiwal cows (28.842&plusmn;1.25mg/mL) followed by Nili-Ravi buffaloes (20.026&plusmn;0.665mg/mL), and the lowest in cross-bred cow&rsquo;s milk (10.176&plusmn;0.568mg/mL). The mean value of caseins in milk of Nili-Ravi buffaloes was58.077&plusmn;0.90mg/mL, while the least (30.491&plusmn;1.15mg/mL) in Sahiwal cow&rsquo;s milk and the highest (71.418&plusmn;1.20mg/mL) in milk of cross-bred cows. Effect of different quarters on milk protein profiles was non-significant in all three species/cattle breeds. Bulk milk contained 73.555&plusmn;0.887 mg/mL total proteins, 19.586&plusmn;0.767 mg/mL lactoserum proteins and 53.969&plusmn;1.464 mg/mL caseins.</p> Bulk milk; caseins; lactoserum; mammary gland; Pakistan; quarters; total proteins; whey Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-89