使用玉米干酒糟及其可溶物（cDDGS）部分替代豆粕对猪育肥效果、猪肉屠宰价值和品质的影响。
Effects of Using Corn Dried Distillers' Grains with Solubles (cDDGS) as a Partial Replacement for Soybean Meal on the Outcomes of Pig Fattening, Pork Slaughter Value and Quality.
作者信息
Schwarz Tomasz, Przybyło Marcin, Zapletal Piotr, Turek Artur, Pabiańczyk Mariola, Bartlewski Pawel Mieczyslaw
机构信息
Department of Animal Genetics, Breeding and Ethology, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland.
Department of Animal Nutrition and Biotechnology and Fisheries, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland.
出版信息
Animals (Basel). 2021 Oct 14;11(10):2956. doi: 10.3390/ani11102956.
The present study set out to determine the effects of incorporating cDDGS into starter, grower, and finisher diets (containing 5%, 10%, and 15% of cDDGS, respectively) on growth performance, carcass and meat quality, and cost effectiveness of pig fattening. Sixty-four pigs (mean body weight of 15.0 ± 2.1 kg) were divided into two groups ( = 32) and fed a control diet (cereal-soybean meal-based) or cDGGS-containing diets (with soybean meal partially replaced with cDDGS). Live weights of pigs as well as weight gains/daily weight gains across all fattening phases did not differ between the two groups of fattener pigs studied ( > 0.05). Addition of cDDGS decreased feed intake per pig during the grower ( < 0.05) and finisher ( < 0.01) phases, and, as a result, throughout the entire fattening period (254 vs. 245 kg for control and cDDGS groups, respectively; < 0.01). The feed conversion ratio (FCR) for the entire fattening period was significantly less for cDDGS-fed fatteners (2.77) than for controls (2.91; < 0.05). Carcass weights, fat thickness, and meatiness did not vary between the two groups of animals ( > 0.05). Loin depth was greater in the cDDGS group by ~5 mm ( < 0.05). Slaughter value was higher for the cDDGS group (76.1% vs. 77.0%, < 0.05). The total cost of fattening and total cost of 1 kg of body weight decreased in cDDGS compared with the control subset of fatteners by ~7% and 8% during the grower and finisher phases, respectively ( < 0.01). The simplified direct surplus per pig was approximately 63% higher for the cDDGS group. Our results indicate that even moderate inclusion of cDDGS to concentrate mixtures (or a partial replacement of soybean meal with cDDGS) may improve FCR without any substantial changes in meat and back fat characteristics as well as significantly decrease the cost of feeding and increase the profitability of pig production.
本研究旨在确定在仔猪、生长猪和育肥猪日粮中添加玉米干酒糟及其可溶物（分别含5%、10%和15%的玉米干酒糟及其可溶物）对生长性能、胴体和肉质以及生猪育肥成本效益的影响。64头猪（平均体重15.0±2.1千克）被分为两组（每组n = 32），分别饲喂对照日粮（谷物-豆粕型）或含玉米干酒糟及其可溶物的日粮（用玉米干酒糟及其可溶物部分替代豆粕）。在研究的两组育肥猪中，猪的活重以及所有育肥阶段的增重/日增重没有差异（P>0.05）。添加玉米干酒糟及其可溶物降低了生长猪阶段（P<0.05）和育肥猪阶段（P<0.01）每头猪的采食量，结果在整个育肥期内采食量也降低了（对照组和玉米干酒糟及其可溶物组分别为254千克和245千克；P<0.01）。整个育肥期内，饲喂玉米干酒糟及其可溶物的育肥猪的饲料转化率（FCR）显著低于对照组（2.77对2.91；P<0.05）。两组动物的胴体重、背膘厚度和瘦肉率没有差异（P>0.05）。玉米干酒糟及其可溶物组的腰肉深度比对照组大约厚5毫米（P<0.05）。玉米干酒糟及其可溶物组的屠宰率更高（76.1%对77.0%，P<0.05）。与对照组相比，在生长猪和育肥猪阶段，玉米干酒糟及其可溶物组的育肥总成本和每千克体重的总成本分别降低了约7%和8%（P<0.01）。玉米干酒糟及其可溶物组每头猪的简化直接盈余比对照组高约63%。我们的研究结果表明，即使在浓缩混合料中适度添加玉米干酒糟及其可溶物（或用玉米干酒糟及其可溶物部分替代豆粕），也可能改善饲料转化率，而肉和背膘特性没有任何实质性变化，同时显著降低饲养成本并提高生猪生产的盈利能力。
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