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41.
Zhu Zeng Yalin Zhang Jun He Jie Yu Xiangbing Mao Ping Zheng Yuheng Luo Junqiu Luo Zhiqing Huang Bing Yu Daiwen Chen 《动物营养(英文)》2021,7(2):393
There are appreciable does of raffinose in soybean, but the impacts of raffinose on pigs are poorly investigated. We used 2 experiments to investigate the influence of soybean raffinose on growth performance, digestibility, humoral immunity and intestinal morphology of growing pigs. In Exp. 1, a total of 30 crossbred (Duroc × Landrace × Yorkshire) barrows (21.93 ± 0.43 kg) were randomly divided into 3 groups, and were fed with the control diet, the control diets supplemented with 0.2% and 0.5% raffinose, respectively, for 21 d. Results showed that the addition of 0.2% or 0.5% raffinose reduced (P < 0.05) average daily feed intake (ADFI), average daily gain (ADG) and nutrient digestibility, and dietary 0.5% raffinose increased the ratio of feed to gain (P < 0.05). For serum indexes, dietary 0.5% raffinose decreased growth hormone and increased glucagon-like peptide-2, immunoglobulin G, tumor necrosis factor-α (TNF-α) and interleukin-6 concentration (P < 0.05). In Exp. 2, a total of 24 crossbred barrows (38.41 ± 0.45 kg) were randomly divided into 3 groups, and were fed with the control diet (ad libitum), the raffinose diet (0.5% raffinose, ad libitum), and the control diet in the same amount as the raffinose group (feed-pair group) for 14 d, respectively. Compared with the control diet, dietary 0.5% raffinose decreased ADFI (P < 0.05). Intriguingly, the raffinose group had lower ADG than the feed-pair group, lower nutrient digestibility, lower amylase activity in duodenum, lower amylase, lipase and trypsin activities in jejunum and higher TNF-α concentration in serum compared with the other 2 groups, and a higher ratio of villus height to crypt depth compared with the control group (P < 0.05). These results showed that soybean raffinose could reduce feed voluntary intake and body gain while improving intestinal morphology without a significant negative influence on immunity. Taken together, dietary raffinose could decrease growth performance by reducing both feed intake and nutrient digestibility while inducing humoral immune response of growing pigs. 相似文献
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农产品的质量与其生长环境和保存环境密切相关,而农业对象又具有分散偏僻的特点,因此研究便捷、低功耗、精确的远程温湿度监测装置具有现实意义。此装置由传感节点和中继节点组成,传感节点选用NRF24 LE1低功耗器件,负责感知环境的温湿度,通过2.4 GHz无线短距传输上传至中继节点;终端PC利用GPRS远距离与中继节点通信,实时周期性收集中继节点汇聚的传感数据。传感节点与中继节点间采用防碰撞延时发送机制,实现传感节点的低功耗和数据有效传输。中继节点与终端PC通过GPRS网络建立UDP连接,使系统可以管理多个中继节点,可扩展性好。 相似文献
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Zeng Fanqi Zhou Ming Wang Yong 《保鲜与加工》1993,(4):150-154
This paper proposes a model framework, which describes the function requirements and the common characterstics of vehicle transport management. With the frame, a computer vehicle transportation managerment information system(QCMIS)is in troduced here and it has already been put into practice. The key technical points is also explained in the paper. 相似文献
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Detection of Edges within the Cross Sectionfrom Projections of Parallel Beams Via the Wavelet Method
The wavelet analysis are used in the detection of edges within the cross sectionfrom projections of parallel beams. This method can be applied in computerized tomography (CT) inorder to reduce the noise and the number of projections. 相似文献
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高产小麦品种模式化选育的初步研究 总被引:4,自引:0,他引:4
本文探讨了高产小麦品种理想模式的概念、特点和品种模式化选育的理论依据及优点。对37个亩产400公斤以上的高产品种的产量与其构成因素、形态性状、生理性状以及这些性状之间的关系进行了多元和简单相关分析。针对山东的生态条件和品种的现状,优化了亩产600-650公斤的品种模式。探讨了各类性状间的有机联系和协调发展产量潜 相似文献
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Membership functions.formed with the characteristic values obtained by applying the continuous reaction time (CRT) theory from controls and heptic encephalopthy and proposedin this paper.whith these membership functions,the CRT data to be diagnosed are calculated in advance,and then discriminated by BP meural network to differentiate patients with or without braindysfunction.The troubles of low accuracy and efficiency,encountered in training BP network withfuzzy samples.scattered data and extended samples,are solved. 相似文献