Kalaivani, GBharathidhasan, AKarunakaran, RTANUVAS2020-08-052020-08-052020-03http://krishikosh.egranth.ac.in/handle/1/5810150401TNV_IVJ_2020_97(3)39-41Data regarding the feeding practices followed in lactating dairy cattle at Puzhal and Kadirvedu Villages of Tiruvallur District was recorded and categorized into four groups. The categorized groups were Group I- high yielders, group II medium yielders, group III- average yielders and group IV- low yielders. The DMI of group I, II, III and IV was deficit by 8.5, 24, 25 and 40 % respectively. The DCP given for group I, II, III & IV was also deficit by 22, 30, 34 and 16%, respectively. The TDN given for all four groups was also deficit than ICAR standard.enVeterinary ScienceArticle