Background: This study was conducted to evaluate the effect of dietary LJP supplementation on growth performance, heat stress resistance and immune status of weaned piglets raised in a high-temperature environment (34 ± 3°C).Methods: A total of 72 Barkshire × Licha Black crossbred piglets were weaned at 30 days of age (BW, 5.88 ± 0.16 kg) and fed either without or with 100, 200 or 400 mg/kg LJP in a completely randomized design, with 3 pens per diet (6 pigs per pen). On day 21, a total of 12 piglets were selected to collect blood samples.Result: The results showed that 200 and 400 mg/kg LJP supplementation decreased the feed conversion ratio (FCR) of piglets compared to the control group (P = 0.037) and dietary LJP linearly increased average daily gain and decreased FCR of piglets (P = 0.037 and 0.011, respectively). In addition, adding 100, 200 and 400 mg/kg LJP reduced the serum HSP70 content compared to the control group (P = 0.019) and dietary LJP linearly and quadratically decreased the serum HSP70 content of piglets (P = 0.030 and 0.011, respectively). Moreover, supplementation of 200 mg/kg and 400 mg/kg LJP increased the serum (NO) and nitric oxide acid phosphatase (ACP) content compared to the control group (P = 0.019; P = 0.003) and dietary LJP linearly increased the serum lysozyme, NO and ACP contents (P = 0.039; P = 0.005; P = 0.001). In conclusion, dietary LJP has potential to regulate systemic defence property of weaned piglets raised in a high temperature condition, accompanied by increased growth performance.

Li Ning applies information technology into all aspects of its corporate governance, combing with its actual situation continuously in the process of information development, which greatly improves its corporate governance ability. Enhancement of such ability lays a foundation for the development of information in the company and forms the mutual promotion of the two. In such an era of changing information, when using information technology to strengthen work efficiency, companies can also improve the corporate governance structure, establish a financial information system to enhance the financial supervision ability and provide helps in management strategic decisions. As a result, efficiency of a company's governance mechanism is enhanced, and the performance management is also improved, which all bring benefits to the corporate governance. Thus we need to seize new opportunities of corporate governance reform brought by development of the information technology, and use it to manage the company rationally. When using information technology to improve corporate governance, we should avoid problems of information security, the complexity of risk assessment due to increased information and thoughts of "All Relying on Information Technology" caused by the characteristics of it. In a word, we should use information technology appropriately to strengthen a company's corporate governance effectively.

Dietary iron requirement of adult Nile tilapia (Oreochromis niloticus), genetically improved farmed tilapia (GIFT strain), was determined in this study through a 77 day feeding trial. Diets with six concentrations of iron (45.55 - the control group, 94.91, 193.62, 292.34, 391.05, and 489.77 mg iron/kg diet) from ferrous sulfate were formulated and hand-fed to adult GIFT (initial body weight 174.58±3.49g). The results indicated that no fish died in all groups. Weight gain ratio, feed efficiency rate, as well as specific growth rate decreased in relation to increasing dietary iron levels, and reached the lowest when supplemented with 489.77 mg iron/kg diet. Crude body fat content showed an increasing trend in relation to increasing dietary iron levels. The iron content in the body, vertebrae, and liver significantly increased with dietary iron levels which reached up to 391.05 mg iron/kg diet. The number of red blood cells, the hemoglobin content and the packed cell volume was highest in 94.91 mg iron/kg group. In conclusion, dietary iron made no obvious improvement on growth performance, but improved hematopoietic function of adult Nile tilapia, reared in freshwater. We found that no additional iron needs to be added to the adult Nile tilapia (174.6–558.1 g) feed based on the growth, whereas broken-line regression analysis were used to determine the optimum iron requirements for maximum hemoglobin levels, the dietary iron requirement for hemoglobin was 120.94 mg iron/kg diet with ferrous sulfate as a source of iron.

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The application of multimedia has played very positive part in various subject educations, which provides some inspire for physical education. The teaching goal of physical education is to teach sports knowledge and improve sports ability. The application of multimedia technology in physical education surely will make organic unity of three aspects. There are theoretical knowledge learning, sports ability training and fitness. The author relies on related teaching experience and trial to make research about the possibility of multimedia information technology application in physical education. The research offers some reference for the application of multimedia technology in physical education.