Gracia Marta I, Cano Guillermo, Vázquez Patricia, Hansen Lea H B
Imasde Agroalimentaria, S.L. C/Nápoles 3, 28224 Pozuelo de Alarcón, Spain.
Chr. Hansen A/S, Animal and Plant Health and Nutrition, Boege Allé 10-12, 2970 Hoersholm, Denmark.
Animals (Basel). 2023 Sep 29;13(19):3067. doi: 10.3390/ani13193067.
The objective of the present study was to test the hypothesis of and supplementation to a negative control diet in comparison to a standard control diet, had the potential to improve the performance and nutrient digestibility of growing-finishing pigs. For this purpose, 384 fattening pigs of 85 d of age were allotted to three treatments: a standard diet, a negative control (NC) diet (5% soybean meal replaced by 5% rapeseed meal), or a NC diet + probiotic. After reaching a body weight of approximately 110 kg, all animals going to the slaughterhouse (87% of total pigs) were selected to measure carcass quality. Moreover, the apparent total tract digestibility of protein was evaluated at the end of the grower period. The results of this study indicate that supplementation of the tested -based probiotic significantly improved average daily gain (ADG, +14.6%) and Feed:gain ratio (F:G, -9.9%) during the grower phase compared to the NC diet. The improvement observed during the grower phase was maintained for the whole fattening period (ADG, +3.9%). Probiotic supplementation significantly improved the total apparent faecal digestibility of dry matter and crude protein in pigs at the end of the grower period. The improvements observed with the additive tested could indicate that supplementation of the -based probiotic was able to counteract the lower level of crude protein and standardised ileal digestible amino acids in the NC diet by means of improved protein digestibility.
与标准对照日粮相比，在阴性对照日粮中添加益生菌和益生元有可能提高生长育肥猪的生产性能和养分消化率。为此，将384头85日龄的育肥猪分配到三种处理中：标准日粮、阴性对照（NC）日粮（用5%菜籽粕替代5%豆粕）或NC日粮+益生菌。在体重达到约110 kg后，选择所有送去屠宰场的动物（占总猪数的87%）来测量胴体品质。此外，在生长育肥期结束时评估蛋白质的表观全肠道消化率。本研究结果表明，与NC日粮相比，添加受试益生菌显著提高了生长育肥期的平均日增重（ADG，提高14.6%）和料重比（F:G，降低9.9%）。在生长育肥期观察到的改善在整个育肥期得以维持（ADG，提高3.9%）。添加益生菌显著提高了生长育肥期结束时猪的干物质和粗蛋白的总表观粪便消化率。观察到的受试添加剂的改善情况可能表明，添加该益生菌能够通过提高蛋白质消化率来抵消NC日粮中粗蛋白和标准回肠可消化氨基酸水平较低的影响。
