| 
              
              
              Open Access  
 
              
              
              
              Research 
              
              
(Published 
				online: 16-06-2016)  
              10. 
				
				
				Test day variability in yield and 
				composition of Surti and Mehsani buffaloes milk at day 15 and 60 
				postpartum - 
				
				K. K. Tyagi, B. P. Brahmkshtri, U. V. Ramani, V. B. Kharadi, G. 
				M. Pandaya, M. Janmeda, K. J. Ankuya, M. D. Patel and L. M. 
				Sorathiya 
              
              Veterinary World, 9(6): 595-600   
              
   
                
                
doi: 
              
				
				10.14202/vetworld.2016.595-600 
                
				  
				
				K. K. Tyagi: 
				
				Livestock Research Station, Navsari Agricultural University, 
				Navsari, Gujarat, India; naulrs@gmail.com 
				
				B. P. Brahmkshtri: 
				
				Department of Animal Genetics and Breeding, College of 
				Veterinary Sciences, Navsari Agricultural University, Navsari, 
				Gujarat, India; bpbkhatri@gmail.com 
				
				U. V. Ramani: 
				
				Department of Animal Biotechnology, College of Veterinary 
				Sciences, Navsari Agricultural University, Navsari, Gujarat, 
				India; umedramani@yahoo.co.in 
				
				V. B. Kharadi: 
				
				Livestock Research Station, Navsari Agricultural University, 
				Navsari, Gujarat, India; vishnukharadi2@gmail.com 
				
				G. M. Pandaya: 
				
				Department of Animal Genetics and Breeding, College of 
				Veterinary Sciences, Navsari Agricultural University, Navsari, 
				Gujarat, India;
				
				
				gmp2004@gmail.com 
				
				M. Janmeda: 
				
				Department of Animal Genetics and Breeding, College of 
				Veterinary Sciences, Navsari Agricultural University, Navsari, 
				Gujarat, India; mamtajanmeda@yahoo.co.in 
				
				K. J. Ankuya: 
				
				Livestock Research Station, Sardarkrushinagar Dantiwada 
				Agricultural University, Sardarkrushinagar, Gujarat, India; 
				ankuya@rediffmail.com 
				
				M. D. Patel: 
				
				Livestock Research Station, Navsari Agricultural University, 
				Navsari, Gujarat, India; drmanish911@yahoo.com 
				
				L. M. Sorathiya: 
				
				Livestock Research Station, Navsari Agricultural University, 
				Navsari, Gujarat, India; lmsorthiya@yahoo.co.in   
				
				Received: 06-12-2015, Accepted: 03-05-2016, Published online: 
				16-06-2016   
				
              	
              	Corresponding author: 
              	
				
				K. K. Tyagi, e-mail: naulrs@gmail.com 
 
              Citation: 
				
				Tyagi KK, Brahmkshtri BP, Ramani UV, Kharadi VB, Pandaya GM, 
				Janmeda M, Ankuya KJ, Patel MD, Sorathiya LM (2016) Test day 
				variability in yield and composition of Surti and Mehsani 
				buffaloes milk at day 15 and 60 postpartum, 
				
				Veterinary World, 9(6): 
				595-600. 
 
              
				Abstract 
 
				
				
				Aim: 
				
				To estimate individual test day variability in yield and 
				composition of Surti and Mehsani buffaloes milk at day 15 and 60 
				postpartum (pp). 
				
				
				Materials and Methods: 
				
				A total of 13 normally calved Surti and Mehsani buffaloes each 
				maintained at Livestock Research Stations of Navsari and 
				Sardarkrushinagar Dantiwada Agricultural Universities, 
				respectively, were selected for the study. Milk sample was 
				collected from each selected buffalo at day 15 and 60 pp to 
				study milk yield and composition variability between these two 
				breeds. Buffaloes were categorized for the ease of data analysis 
				and comparisons into four groups, viz., S15 (Surti buffaloes 
				15th day pp), S60 (Surti buffaloes 60th day pp), M15 (Mehsani 
				buffaloes 15th day pp), and M60 (Mehsani buffaloes 60th day pp). 
				
				
				Results: 
				
				There were 37.20% and 25.03% significant (p≤0.05) increase in 
				mean test day milk yield (TDMY) of S60 and M60 as compared to 
				S15 and M15 groups, respectively. The mean TDMY of Mehsani 
				buffalo was 99.19% and 81.53% significantly (p≤0.05) higher than 
				Surti buffaloes at day 15 and 60 pp, respectively. The mean fat 
				and protein corrected test day milk yield (FPCTDMY) of all the 
				groups was found to be significantly different (p≤0.05) from 
				each other. There was significant (p≤0.05) increase of 1.94 and 
				3.45 kg in mean FPCTDMY with the progression of lactation 
				between day 15 and 60 pp in Surti and Mehsani buffaloes, 
				respectively. Similarly, the mean FPCTDMY of Mehsani buffaloes 
				were approximately double with 103.27% and 96.36% higher yield 
				as compared to Surti buffaloes at day 15 and 60 pp, 
				respectively. Among milk composition, significant differences 
				were observed for solid not fat (SNF) and protein%, whereas fat 
				and lactose% were steady among four groups. The only significant 
				(p≤0.05) difference was observed for SNF in M60 group, which was 
				8.29%, 6.85%, and 10.70% higher as compared to S15, S60, and M15 
				groups, respectively. The mean protein% in milk of Mehsani 
				buffaloes was 21.01% and 33.05% significantly (p≤0.05) higher 
				than Surti buffaloes milk at day 15 and 60 pp, respectively. 
				However, there was a significant difference in protein% observed 
				with the advancement of lactation in Mehsani buffaloes, but it 
				was not so in the case of Surti buffaloes. 
				
				
				Conclusion: 
				
				Major consistent finding of the present study reveals that milk 
				yield and protein% of Mehsani buffalo was significantly higher 
				than Surti buffalo at day 15 and 60 pp. 
				
				Keywords: 
				
				buffalo, Mehsani, milk composition, milk yield, Surti. 
 
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