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首页> 外文期刊>Tecnica Pecuaria en Mexico >Digestibility of nutrients in piglets fed diets with isolated or concentrate soy protein.
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Digestibility of nutrients in piglets fed diets with isolated or concentrate soy protein.

机译：仔猪用分离的大豆蛋白或浓缩大豆蛋白喂养的日粮中养分的消化率。

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摘要

A total of 15 piglets weaned at 17 days of age and weighing 6.1+or-1.8 kg were used to determine the effect of protein source on the nutrient digestibility of 3 diets: concentrated soya protein (SPC); soya protein isolated alone (SPI); and SPI plus dried whey (SPIDW). The apparent ileal (AID) and total digestibilities (ATD) of dry matter (DM), crude protein (CP) and energy (En) were evaluated in 3 periods (P): P1=26-29; P2=33-36 and P3=40-43 days. DM AID of SPI was higher (P<0.01) than that of SPIDW and SPC (84.2 vs. 82.8; 79.3%). CP AIDs of SPI and SPIDW diets were higher (P<0.01) than that of SPC diet (80.1, 80.4 vs. 76.4%). En AID of SPI was higher (P<0.01) than that of other diets, and SPC and SPIDW were practically similar (86.9 vs. 81.6 and 83.9%). DM AID increased (P<0.05) in P2 and did not differ between P2 and P3 (79.9 vs. 83.1 and 83.4%). A similar effect was observed in energy (82.4 vs. 84.4, 85.7%). CP AID showed the best values for SPC and SPIDW in P3 (P<0.01). Apparent total digestibility of DM, CP and En was higher in SPI-fed piglets than in SPC-fed ones (91.3, 89.9 and 92.6% vs. 86.8, 80.4 and 87.8%). SPI had a higher DM ATD than SPIDW (91.3 vs. 88.9%). SPC and SPIDW had a similar ATD, except to crude protein. DM, CP and En ATDs increased (P<0.01) between P1 and P2. The protein sources studied were very digestible..
机译：总共15只仔猪在17日龄时断奶，体重为6.1+或-1.8 kg，用于确定蛋白质来源对3种日粮营养消化率的影响：浓缩大豆蛋白（SPC）;日粮。大豆分离蛋白（SPI）;和SPI加干乳清（SPIDW）。在3个阶段（P）中评估了干物质（DM），粗蛋白（CP）和能量（En）的表观回肠（AID）和总消化率（ATD）：P1 = 26-29; P2 = 33-36天，P3 = 40-43天。 SPI的DM AID高于SPIDW和SPC（P <0.01）（84.2 vs. 82.8; 79.3％）。 SPI和SPIDW日粮的CP AIDs高于SPC日粮（80.1，80.4 vs. 76.4％）（P <0.01）。 SPI的En AID高于其他饮食（P <0.01），并且SPC和SPIDW实际上相似（86.9比81.6和83.9％）。 P2中的DM AID增加（P <0.05），P2和P3之间没有差异（79.9比83.1和83.4％）。在能量方面观察到类似的效果（82.4对84.4，85.7％）。 CP AID在P3中显示出最佳的SPC和SPIDW值（P <0.01）。 SPI喂养的仔猪的DM，CP和En的表观总消化率高于SPC喂养的仔猪（分别为91.3、89.9和92.6％，而86.8、80.4和87.8％）。 SPI的DM ATD高于SPIDW（91.3对88.9％）。除了粗蛋白外，SPC和SPIDW的ATD相似。在P1和P2之间，DM，CP和En ATDs增加（P <0.01）。研究的蛋白质来源极易消化。

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