Protein Sparing Effect of Dietary Rumen Protected Lysine Plus Methionine in Growing Murrah Buffaloes (Bubalus bubalis)

Replacing Soybean Meal with Distillers Dried Grains with Solubles plus Rumen-Protected Lysine and Methionine: Effects on Growth Performance, Nutrients Digestion, Rumen Fermentation, and Serum Parameters in Hu Sheep

“…Dietary N input is the primary factor determining metabolism N efficiency, and Hu sheep fed the DDGS supplemented with RPLM diets had enhanced N efficiency in the current study [ 27 ]. An apparent increase occurred in the relative proportion of fecal N compared with urinary N, while a reduction in apparent nitrogen digestibility occurred in the DRPLM group, similar to previous literature [ 15 , 24 , 28 ]. The important implication of this shift in the route of N excretion is that manure ammonia emissions will also be expected to decrease because urinary urea is the primary source of ammonium and consequently ammonia in cattle manure [ 29 ].…”

“…The DMI increased in the DRPLM group and resulted in the ADG tending to increase, which was the main reason for these results. Similar results were observed in two previous experiments in which RP-Lys or RP-Met were added to the diet of Murrah buffaloes [ 15 ] or growing Awassi lambs [ 16 ]. However, supplementation of individual rumen-protective lysine or methionine decreased the final BW, carcass weight, and tail fat weight, which indicated that the amino acid imbalance could negatively impact the growth performance of cattle [ 17 ].…”

The effect of adding protected amino acids (methionine and lysine) on the performance and carcass characteristics of male Arabi lambs

“…Also, Abdelrahm (2010) did not find significant differences in the average total gain when fed Baladi goat breed on protected methionine (0, 2.5, 5) g/head/day. As it happened with Gami et al (2017) when they added lysine and methionine protected at levels 2 and 17 g/ kg feed, respectively, to the diets of buffalo calves aged between 7 to 12 months.…”

“…These findings are similar to the reports of Muhammad and Abubakar, (2012), when fed lambs fatting diets contained 0.2 and 0.4 %/ kg dry matter, and, with Li, et al (2019) when used protected methionine at different levels (0, 1.5, 3, 4.5, 6) g/head/day in the diets of Ningxia Tan male lambs at 5 months old. As it happened with Gami et al (2017) when they added lysine and methionine protected at levels 2 and 17 g/ kg feed, respectively, to the diets of buffalo calves aged between 7 to 12 months.…”

“…Many strategies can protect the protein and amino acids from analyzing them by micro-organisms in the rumen and transform it to microbial protein with ensuring digested in the stomach and small intestine by treatment of amino acids with formaldehyde and fatty packaged (Al-Badri 2010;Schwab et al 2003). Use methionine and lysine, such as supplements in ruminant diets improving the performance of animals, the rates of growth of animals, the efficiency of food conversion, quantitative and qualitative carcass (Li et al 2019;Gami et al 2017;Abdelrahman and Hunaiti 2008;Sun et al 2007).…”