Augmented Feeding with By-passed Amino Acid and Slow-released Non-protein Nitrogen Supplement on Milk Peak, Lactation Persistency, and Post-partum Reproduction of Brazilian Buffaloes

Daniel L Aquino, M V Del Rosario, K F Vergara, L C Cruz

Abstract


Twenty five pregnant and primiparous Brazilian buffaloes were allotted in a Randomized Completed Block Design involving five dietary treatments namely; without (T1) or with (T2) augmented feeding plus supplementary by-passed amino acid (BPAA, T3); slow-released non-protein nitrogen (SRNPN, T4) and its combination (T5) to assess their milk peak, lactation persistency and post-partum reproductive performance. Five cows were assigned per treatment and each cow served as a replicate. The feed ration was composed of corn silage (67.3%), rice straw (9.5%) and dairy concentrate pellets (23.2%). The supplementary concentrates, BPAA and SRNPN were given at 0.5kg/kg milk production, 100 grams and 50 grams/hd/day, respectively. Results showed that augmented feeding alone or with supplementary BPAA and SRNPN gave significantly higher (P<0.05) peak milk of 12 and 12.5 kg/d, respectively. The milk peak was observed during 68 (T1) and 71 days (T5) in milk of the cows. The dry matter and crude protein digestibility were significantly increased in T2 and T5. No significant differences were observed on lactation persistency but the observed value of 91.8% was closer to the reported ideal lactation persistency of 95% in dairy buffaloes. No significant differences were observed on the post-partum reproductive performance, feed intake, and the feed cost to produce a kilogram of milk. At 146 days service period using artificial insemination, 80% of the buffaloes were already confirmed pregnant. The use of augmented feeding with BPAA and SRNPN supplements gave a significant (P<0.05) net income of P33,762.00 (US$ 720/cow) per lactation of the buffaloes.

Keywords


Augmented Feeding; By-passed Amino Acid; Slow-released Non-protein Nitrogen; Milk Peak; Brazilian Buffaloes

References


Alexiev A. 1998. The water buffalo. (Sofia) Bulgaria: St. Kliment Ohridski University Press.

Anwar M, Cain PJ, Rowinson P, Khan MS, Abdullah M, Babar ME. 2009. Factors affecting the shape of the lactation curve in Nili-Ravi Buffaloes in Pakistan. Pakistan J Zool. 9:201-207.

Capuco AV, Ellis SE, Hale SA, Long E, Erdman RA, Zhao X, Paape MJ. 2003. Lactation persistency: Insights from mammary cell proliferation studies. J Anim Sci. 81:18-31.

Drackley JK. 2002. Nutritional management for transition dairy cows. Urbana (US): Department of Animal Sciences, University of Illinois.

Habib G. 2009. Nutritional management strategies to improve milk production in buffaloes. Pakistan J Zool. 9:533-544.

Cowan RT, Reid GW, Greenhalgh JFD, Tait CAG. 1981. Effects of feeding level in late pregnancy and dietary protein concentration during early lactation on food intake, milk yield, live weight change and nitrogen balance of cows. J Dairy Res. 48:201-212.

Kearl LC. 1982. Nutrient requirements of ruminants in developing countries. Logan (US): International Feedstuff Institute. Utah Agricultural Experiment Station. Utah State University.

Kohls D.2002. Feed and nutrition consultant form-a-feed. Minnesota (US): Form-A-Feed.

Moran J. 2005. Tropical dairy farming for small holder dairy farmers in the humid tropics. Clayton (AUS): Landlinks Press.

Nadeem SM, Pasha TM, Jabbar MA, Javed K, Khan MZ, Naveed S, Ditta YA. 2014. Effect of different non-protein nitrogen (NPN) sources on performance of lactating Nili-Ravi buffaloes. J Anim Plant Sci. 24:1-4.

Russell JB, Strobel HB. 1989. Effect of ionophores on ruminal fermentation. Appl Environ Microbiol. 55:1-6.

Satter LD, Roffler RR. 1977. Protein requirement and non-protein nitrogen utilization of ruminant. Trop Anim Prod. 2:31.

Socha MT. 1994. Determining the methionine requirements of lactating dairy cows [Thesis]. [Durham (US)]: University of New Hampshire.

Wood PDP. 1967. Algebraic model of the lactation curve in cattle. Nature. 216:164-165.




DOI: 10.14334/Proc.Intsem.LPVT-2016-p.104-114

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