In order to study the beef traits of Limousin hybridized Red Steppe further, 39 weaned bull calves of Limousin×Red Steppe F1 and 79 calves of Red Steppe were chosen for continual finishing under the same feeding and management conditions and slaughtered at 18-month old. The results showed that the slaughter weight and daily gain of Limousin×Red Steppe F1 in the finishing period were extremely significant higher than that of Red Steppe（P0.01）. The body height, body slanting length, sciatic width, chest circumference, cannon circumference and thigh circumference were extremely significantly higher than that of Red Steppe（P0.01）and the overall frame of Limousin×Red Steppe F1 were similar to the frame of beef line. The major meat indicators （such as carcass weight, slaughter percentage and net meat percentage） of Limousin×Red Steppe F1 were extremely significantly higher than that of Red Steppe（P0.01）. The content of crude fat in the meat of Limousin×Red Steppe F1 decreased than that of Red Steppe, but its content of crude protein increased. The content of oleic acid in Limousin×Red Steppe F1 decreased 2.43 percent point than that of Red Steppes. The contents of unsaturated fatty acids, amino acids related to beef flavor and total essential amino acids in Limousin×Red Steppe F1 had no obvious change with that of Red Steppe.

32 Holstein lactating cows were randomly divided into four groups to feed with the diet of adding 0.2%, 0.4% and 0.6% herb feed additive ＂Zengrujianniusan＂ in the concentrated feed. The test lasted for 60 days. The results showed that the milk yield of cattle fed with 0.2%, 0.4%, 0.6% herb feed additive increased 4.02%, 12.5% and 14.0% than control group resepctively（P0.05）. The effects on the nutritional indices of milk （butterfat,lactoprotein,lactose and total solid） were not confirmed, but the number of somatic cells were significantly decreased.

Based introducing the fermentation bed and its characteristics, it was found that the fermentation bed was easily polluted by mildew in the process of raising in fermentation bed, which brought great damages to the aquaculture industry. According to the research and development direction of fungicide, a new type of mildew inhibitors in fermentation bed was designed. The anti-fungi test was made and a satisfactory result was achieved in practical production.

According to the theory of Chinese veterinary medicine and characteristics of Chinese herbal medicine,four different preparations of compound Chinese medicine ＂Zengrujianniusan＂ were composed.The bacteriostatic test on main pathogens of cow recessiveness mastitis with the prepared water decoction was made.The results showed that four different prescriptions of water decoction had antibacterial effects.The prescription 3 were sensitive to Staphylococcus aureus and Streptococcus agalactiae.Other three prescriptions showed high sensitivity,and the prescription 3 had the strongest bacteriostatic effects.

With the donkey milk as the research object,the contents of six kinds of trace elements（K,Ca,Na,Mg,Fe,Zn） were determined,so as to provide some theoretical reference for the development and utilization of donkey milk resources.

On the basis of extensive literature search,some analytic techniques in bioarchaeology like the extraction of ancient DNA,contamination identification,preventing degradation,PCR amplification analysis,sequencing,etc.were briefly summarized,furthermore their future was prospected in order to promote the perfection and innovation of ancient DNA analytic techniques.

Based on extensive literature search,the possible mechanism of telepathic phenomena and experimental research,etc.were reviewed so as to provide scientific reference for the psychology and modernization of traditional Chinese medicine.

The two-stage method for R. palustris culture was introduced. The method has some advantages of short production circle, less microbiological contamination and higher yield of mycelium, so it provides a new way for the industrialization production of R. palustris.

Opioid system is one of the systems to modulate physiological activities in the body. According to the investigations in recent decades, opioids are presumed to play a vital role in the control of growth in farm animals and other species. However little information is available regarding the effects of opioids on tissue weights and DNA, RNA and protein levels of tissues in farm animals. Effects of opioids on macromolecular constituents of tissues in guinea pigs, opossums and salamanders are described in the article. Although it is unclear whether opioids could affect the function of tissues or not, opioids can induce immunosuppression in mice and humans.

With the development of science and technology, the selection and genetic evaluation ways of livestock and poultry have been developed continuously, which have undergone great changes and development from traditional experienced breeding to genomic selection. This development constantly improves the efficiency of selection. The development process of the selection ways of livestock and poultry was summarized, and different selection ways were briefly reviewed.

With the rapid development of modern science and technology, modern biology technology has entered into the post-genomics period, and the emphasis of life science transfer from instruction genome to the post-genomics period, that is functional genome. Proteomics is an important part of functional genome, and the related technology has been developed rapidly and applied in many fields. The technology of proteomics is advanced day by day. The development of proteomics technology and its application in meat quality were overviewed in the paper.

Sanger sequencing method, first-generation sequencing method, has provided a powerful tool for human to decipher genetic codes. After more than 30 years′ continual improvement, second-generation sequencing method with some main characteristics of high throughput, rapid sequence and low cost has developed, and it brings revolutionary changes for life science field. The differences between second-generation sequencing and Sanger sequencing method were contrasted in this paper, and the application of second-generation sequencing in life science research was described.

How to discover with the stress resistance of camel was associated from the fact the Antarctic fish was discovered by explorers and antifreeze protein was found in antarctic fish. Aiming at the inherent biological characteristics of camel（heat -resistance, bear thirsty, cold -resistant, resistance to hunger, high roughage, etc.）,some new ideas on the development and utilization of the camel industry were put forward.

The overview of quality protein maize （QPM） was described, and its selection process and methods were analyzed and described. The applications of QPM in feed industry were described in detail.

Liquid controlled-release drug delivery system is a multiphase composite system,and it is a new drug delivery system. Because of its instability in the storage,many products have encountered obstacles in marketing process. Based on applying new excipients to solve these problems,the application of pharmaceutical-grade ion exchange resin in controlled-release drug delivery system was mainly introduced.

Suggestion and experience were brought forward on the construction of animal nutrition and feed science laboratory, which were discussed from two aspects including the construction of teachers and functional laboratories in detail.

Aiming at the teaching reform of specialized courses in animal pharmacy specialty under new situation. Some measured were proposed so as to promote the development of animal pharmacy specialty and culture the qualified talents and high-degree talents of this specialty, including optimizing the course contents and innovating the course system, extruding the subject position of students, strengthening the training of the experimental skills and enhancing the integrated abilities of students, culturing the learning interests, strengthening the training of the scientific research skills.

Aimed at the teaching situation of Poultry Production in College of Animal Science and Technology of Hebei North University, new ideas about the reform on teaching content and methed of Poultry Production were put forward. The teaching content, teaching method, practical teaching and examination system of Poultry Production were reformed and explored, furthermore effective measures were formulated so as to improve the comprehensive quality of students.

The demonstrational analysis teaching method is an effective ways that combined the theoretical knowledge and the clinical practice, which could inspire the learning interests of students and enhance the learning initiative. This not only could enhance the teaching effect, but it also could improve the integrated quality of students. The important role of demonstrational analysis method in the teaching of veterinary pharmacology and the key reference points in the display process was introduced.

Based on summarizing the features and requirements for the practical teaching of Introduction of Domestic Animal Cultivation, the explorations on the practice teaching of Introduction of Domestic Animal Cultivation in Weifang University were summarized, so as to provide references for improving its practical teaching.

According to the characters of Animal Environmental Hygiene, the urgency of teaching innovation was analyzed. The teaching contents and methods, experiment and examination methods and other taches were explored and a good effect was acquired.

The ecological thought of undergraduates of pratacultural science speciality in 5 grades was investigated. It was found that the undergraduates needed the ecological knowledge of grassland,but the ecological education, consciousness and understanding was poor. Aiming at the reasons that the teaching practice contents arranged on the basis of course system were inconsistent and the ecological though culture was poor, some measures were put forward, such as runing through the ecological education in the course teaching of pratacultural science speciality, culturing the ecological thought in the practice of field teaching and the abilities of observing and solving question independently.

Liver and pancreas progenitors all develop from endoderm cells in the embryonic foregut. Shortly after their specification, liver and pancreas progenitors rapidly acquire markedly different cellular functions and regenerative capacities, and these changes are elicited by inductive signals and genetic regulatory factors that are highly conserved among vertebrates. Interest in the development and regeneration of the organs has been fueled by the intense need for hepatocytes and pancreatic β-cells in the therapeutic treatment of liver failure and type Ⅰ diabetes. Studies in diverse model organisms have revealed evolutionarily conserved inductive signals and transcription factor networks that elicit the differentiation of liver and pancreatic cells and provide guidance for how to promote hepatocyte and β-cell differentiation from diverse stem and progenitor cell types.

The function and meaning of animal health supervision in food hygiene and safety were introduced. Based on the work experience, the difficulty of present basic animal health supervision works in ensuring food safety was analyzed, meanwhile the corresponding development countermeasure was put forward.

Pointing at the comprehensive culture situation of intensive culture of animal husbandry in Xuancheng City of Anhui Province, especially the pollution control situation existing in livestock and poultry breeding in Xuancheng City, existing problems in the environmental protection work of animal husbandry were analyzed, furthermore the corresponding development countermeasure in the environmental protection work of animal husbandry was put forward.

According to the Neyman weather station data from 2001 to 2010, effects of Horqin sandy climate on the quality of ＂Mansha＂ watermelon were analyzed from the point of climate resources.

According to the precipitation data of Naiman Meteorological Bureau and Qinglongshan Meteorological Bureau from 1971 to 2010, effects of land and underlying surface properties of two different locations of the linear distance of less than 50 km on the spatial and temporal distribution of precipitation were analyzed and compared. Results showed that there were differences in the year, month and ten days average precipitation, and the emergence times of their change range and extreme value were different.

The effects of extracts from A. frigida Willd. on the plant morphological indices of 3 grass species by was studied by the biological test and cultivation test. The results showed that high concentration （25 mg/mL） of methanol extract from A. frigida Willd. completely inhibited the grass growth. Most indices under the treatments of low concentration （5 mg/mL） of aqueous extract were promoted. The inhibition rates on the root length of Medicago sativa L. cv. Aergangjin and Melilotus officinalis Lam. and the stem-leaf length of Sorghum sudanense（Piper） Stapf. under the treatments of different concentrations were 18.0%~100.0%, 22.5%~30.9% and 19.7%~100.0% respectively, reaching significant or extremely significant levels. Therefore, the extracts from A. frigida Willd. had obvious allelopathic effects on the plant growth.

Inhalation chemotherapy and immunotherapy is a route of administration from today′s practice of clinic veterinary medicine. The indication and drug selection of inhalation chemotherapy and immunotherapy in diseases treatment of pets like dogs and cats as well as points for attention were summarized in this paper so as to make the method play a better role in clinical disease of dogs and cats.

Acariosis is a chronic parasitic disease, and it is caused by Sarcoptes scabiei and Psoroptes communis which parasitize on the skin surface of sheep. The disease mainly happens in autumn and winter, with characters of skin inflammation, trichomadesis, intense itch and emaciation. Pathogen, clinical symptoms and prevention measures of the disease were summarized in this paper in order to provide reference for the effective control of sheep mite disease.