When pig excrement was used as bait,the total biomass of earthworms（Eisenia foetida） was used as an evaluating indicator.When cow dung was used as bait,the total cocoon production of earthworms（Eisenia foetida） was used as an evaluating indicator.The factors included temperature,humidity,inoculum density and ratio of C/N.The orthogonal test L9（34） was used for experimental design.The results showed that the total biomass of earthworms peaked when using the pig excrement as bait under the following conditions：temperature,20 °C;inoculum density,12 earthworms per 90 g dry bait;humidity,70%;and ratio of C/N,14.2.Range analysis showed that the inoculum density had greater effects on the total biomass of earthworms.The total cocoon production of earthworms peaked when using the cow dung as bait under the following conditions：temperature,25 °C;inoculum density,12 earthworms per 90 g dry bait;humidity,65%;and ratio of C/N,19.4.Range analysis showed that the temperature had greater effects on the total cocoon production of earthworms.

Zhaowuda meat sheep is a new variety of meat sheep bred in Chifeng City through years of efforts.The slaughter performance and meat quality were compared between Zhaowuda sheep and Mongolia wether after slaughter.The results showed that the dressing percentages of Zhaowuda sheep and Mongolia wether were respectively 57.79% and 44.32%,and their carcass meat rates were respectively 71.08% and 65.75%.The slaughter rate and carcass meat rate were significantly higher in Zhaowuda meat sheep than in Mongolia wether（P0.01）.The analysis on meat quality showed that the shear strength had no significant difference between Zhaowuda sheep and Mongolia wether.The Zhaowuda meat sheep had intramuscular fat content of 3%-4% and protein content higher than 20%.The contents of necessary amino acids accounted for more than 50% of the ideal protein standard,and the contents of lysine and histidine were higher than the ideal protein standard.The content of flavor amino acids in muscle was significantly higher in Zhaowuda meat sheep than in Mongolia wether（P0.05）.They had similar composition of fatty acids,mainly oleic acid,stearic acid and palmitic acid.The contents of linoleic acid and linolenic acid were significantly higher in Zhaowuda meat sheep than in Mongolia wether（P 0.05）.Therefore,Zhaowuda meat sheep have good flavor and high nutritional value.

BLUP method with animal model was used to estimate heritability of body size traits of fat-tail sheep.The results showed that the heritability of body weight,body height,body length and chest circumference was 0.14,0.11,0.11 and 0.15,all of which were moderate heritability（0.1h20.3）.The heritability of tail length and tail width was 0.09 and 0.08,both of which were low heritability（h20.1）.We proposed the BLUP method and marker-assisted selection（MAS） be used to select fat-tail sheep so as to increase the accuracy of breeder selection.

Based on the data from Huzhu Bamei species farm from 2000 to 2008,the analysis showed that breeding interlude in different variety was at 21.80 to 27.60 days,the average breeding interlude was 25.02 days,the breeding interlude decreased with the increase of fetus numbers,however there was no different signifcance at the same fetus number in different variety（P 0.05）.By analysis of 128 sows breeding at the same time in 2008,the result indicated that the empathema breeding intensively was at post-weaning 6～8 d in the same oestrus,and the conception rate also was high.Additionally,it was related to season to a certain degree with the feature that it is shorter in spring,summer,autumn and longer in winter.

In the study,the contain of chlorophyll and protein from spinach leaf were determined.The result indicated that there was negative correlation between the contain of chlorophyll and protein and ageing;When spinach leaf aged,the contain of chlorophyll decreased,and the decrease in chlorophyll a was higher than that of chlorophyll b;More spinach leaf was serious aging,more the contain of chlorophyll was lower.Meanwhile,the contain of protein decreased,and the activity of protease also increased.

In order to enhance the ability of independent thinking and solving question and raise the teching effect,the teaching model of participation is used in Animal Parasitology course,the teaching effect was ensured by questionnaire.The result showed that the teaching method can transfer activeness of student,train student＇s capability of using internet and enhance student＇s language organizing ability and expression capability,but the defect isn＇t the most effective to use the relative resource and master the knowledge requirement.

In the paper,effects of teaching reforms on Veterinary Clinical Diagnosisis,involving in reform of teaching methods,reform of practice teaching,reform of examination mode and others,was analyzed in recent 3 years,the aim was to be provide the refernce for Veterinary Clinical Diagnosis and other correlative subjects.

Combined with professional characteristics and the situation of teaching of Veterinary Immunology,the influence factors on teaching was analyzed,the suggestions and measures also were put forward in the paper.Teaching quality of Veterinary Immunology should be improve by reasonable arrangement in teacher,optimizing textbook,largely improving teaching methods and content.

University graduation paper is one of the important step for checking student on comprehensive practice of knowledge,studying by himself,researching and renovating practice,for it can examine student in comprehensive ability and practice ability.In the paper,the important role of graduation paper in teaching was reviewed,the existed problems also was analysed and the measurements of improving was explored to provide reference for improving student＇s ability in animal medicine teaching.

To wild animals medical specialty,its theory and practice both are special.In the paper,the nature of practice teaching was introduced,and the existed problems in practice teaching was analysed and the teaching model was explored.

In this paper,teaching contents and methods on Plant Cellar Engineering courses ystematically were introduced,and the teaching model was also innovated.The result indicated that it not only can improve the teaching quaility,but also stimulate ability cultruing in thinking and innovation.

As the development of computer information technology,multi-media auxiliary teaching was widely applied in teaching.Domestic animal anatomy and organization embryology were basic subject belongs to morphology domain,to meet the need of the teaching,multi-media teaching can connect the words and the picture organically with the merit of echoism and concrete,and it has achieved the ideal teaching effect.

The reform and exploration in experimental teaching of cell biology were made to satisfy the need of diversion cultivation through eatablishment of teaching content system,utilization of teaching resource outside school,connection between students innovation trials and item of science research,function of students as host,the aim was to promote employment and overall development for students.

It can satisfy the need of high education to adapt social development by improving the education of students from vocational high schools.Based on poultry production requirements to students,it should to improve teaching quality by emphasizing teachers＇ level,enhancing speciality education,adapting teaching content and teaching methods,and it further explained how to improve practice ability to students in poultry production practice teaching.

The seeding trial on mixed with alfalfa after innoculatedof R.meliloti and Mongolia Agropyron cristatum was made,the analysis and comparation also were taken in morphology,output,quality to explore the effect of increase production.The result showed that the mixed seeding in yield was higher than that of no-innoculation R.meliloti and nitrogen fertilizer application,no-innoculation R.meliloti and no nitrogen fertilizer application achieving 33.91% and 64.89% respectively,it increased the utilization effect for grassland population.The conclusion could be made that the mixed seeding is not only useful for storage and utilization in forage grass,but also improve the feeding value.

The Inner Mongolia steppe was the China＇s top five grasslands,and it has great significance for maintaining balance of global CO2 emissions and effectively delaying changes of global climate.However,the grasslands deteriorate year by year due to too much utilization,extensive management and other reasons.At present,the main measures to improve deteriorated grasslands included fencing enclosure,shallow plough and light mount,scarification,reseeding,fertilizing as well as controlling and removing poisonous weeds.Massive research results showed that different measures can obviously improve deteriorated grasslands,and very good results can be achieved as confirmed by a large number of field applications.

Demography are determined by the interaction between two section,life-history including birth,death and migration as well as demographic composition including size and structure（sex and age） of population.Demographic processes usually point the variation of these two sections.Demographic variation affects demographic composition（size and structure of population）,social behavior and social kinship in social animals.The paper mainly presents the effects of demographic variation on kinship structure as well as factors determining behavior and kinship structure.

Luodu and Duluo hybrid puppy by using Rottweiler and Doberman as different parents in weight,length,body high growth performance was measured in the study.The result showed that growth performance of both hybrid puppies in weight,length and body high increased with the growth of age,but there was no different significance between them,meanwhile the trendence in froth performance was the same as that of female parent.

Importance of shikimic acid was introduced in the paper,meanwhile the extraction,separation and analysis methods of shikimic acid from plant were expounded.Furthermore,the research prospects also was discussed.

The discharge amount of domestic poultry manure in Hebei Province was estimated, and its environmental effect was analyzed. The results showed that both the amount of domestic poultry on hand and the discharge amount of produced poultry manure were increased by 5% every year except in 2006. The average pollution load of poultry manure, pure P and pure N was 28 t/hm2, 178 kg/hm2 and 73 kg/hm2 in Hebei Province, which indicated serious potential environmental pollution.

Taurine was widely used as a nutrient enhancer in foods, especially infant foods and health care products. In this article, the latest developments about the natural taurine extraction and purification methods were summarized.

Pectinase is widely used in food, brewing, environmental protection, medicine and textile industry. Immobilized pectinase is easy to transport and store, which is conductive to automated production. In this paper, several commonly-used immobilizing methods of pectinase are introduced, which include absorption method, embedding method, cross-linking method and covalent binding method.

Recently, the data reveal that many exogenous compounds from process of human production and life in vivo , analog or antagonize physiological role of natural hormones, were released into enviroment, and existed for long time. These exogenous compounds could directly or indirectly be accumulated in animals, and they can bond with hormone receptor, which led to nervous system disorders, endocrine disorders, weakened immune system and reproductive abnormalities, developmental toxicity, embryo toxicity, developing cancer and immunosuppressive diseases. Once the substances, named as endocrine secretion interferent, enter into organism, it can interfer endocrine secretion system and take effect on exist and reproductive. In the paper, the toxicity effect of estrogens from environment on male reproductive was reviewed.

The aim of this study was to investigate the effects of zymosan at different supplement dosages on production performance and immunity of hens. A total of 288 Liangfeng breeding hens at 45 weeks old were selected and assigned randomly into four treatment groups, three repeats in each group, 24 chicks in each repeat. The chicks in the group I , II, III and IV were fed with basal diet （Control）, basal diet supplemented zymosan at a level of 0.15%, basal diet supplemented zymosan at a level of 0.20%, and basal diet supplemented zymosan at a level of 0.25%. Prior the trial, the chicks had no significant different performance between groups. The prefeeding period was 1 week, and the experimental period was 7 weeks. The results showed that zymosan at different supplement dosages had significant effects on production performance and immunity of hens. When the zymosan was supplemented to the diets at a level of 0.15%,the laying rate, the fertility rate, hatchability, and level of IL-2 were increased by 4.56%, 3.27%, 7.45% and 7.54%, respectively. When the zymosan was supplemented to the diets at a level of 0.20%, the laying rate,the fertility rate, hatchability, level of IL-2 and level of IFN-γ were increased by 9.16%, 4.22%, 5.69%, 9.17% and 11.82%, respectively. Therefore, the optimal level of zymosan in hen diet is 0.20%.

The study was aimed to investigate effects of feed additive at different supplement dosage on performance of New Zealand white rabbits. Forty-day-old healthy New Zealand white rabbits were assigned into four groups according to the sex. The trial period was 12 weeks. The rabbits in the control group were fed basal diet. Those in the group I, II and III were fed the basal diet added nutrient materials, basal diet added Chinese medicine additive, and basal diet added nutrient materials, Chinese medicine additive and enzyme preparation, respectively. Body weight, body length and chest measurement were determined at 3, 5 and 8 weeks. After 12 weeks trial, all rabbits＇ indexes of correlation were determined. Feed conversion efficiency and survival rate were calculated. The results showed that the performance indexes in the group Ill were significantly higher than that in the control group （P〈0.05）, and they were higher than that in the group I and II （P 〉0.05）. Therefore, the nutrient materials, Chinese medicine additive and enzyme preparation added in the basal diet have obvious promoting effects on performance of New Zealand white rabbits.

Traditionally, 4P marketing strategy, involving in product, price, place, promotion, was applied to sell sodium diacetate. Nowadays, a new 5P strategy was presented by establishing marketing platform based on the previous project. Meanwhile, the application of the new 5P marketing strategy also analysed and explored in the paper.

The edible part of soft-shell lobster is much more than that of hard-shell lobster. To eat soft-shell lobster can help effective use of nutrients and reduce waste emissions. Soft-shell stage of lobster is prolonged mainly by rapid taking off shell and delaying hardening of new shell. Molting hormones added in diet can accelerate exuviation of lobster. Cooling can reduce metabolism rate of softshell lobster, which thus makes sure long-time constant hardness of shell.

Ostrich has the feature on long life, high productivity, better growth, stronger anti-disease, additionally, its usage is wide and high economic value. In the paper, a case of ostrich with sands deposition in stomach was introduced, the disease was diagnosed by investigating morbidity and exmining pathology change, the treatment was made, and the suggestion was put forward to provide reference for raising.

Using sandwich enzyme-linked immunosorbent assay with antibodies against fecal antigen of Echinococcus granulosus, infection of echinococcus was investigated in Shepherd dogs in six banners （counties） in Inner Mongolia border area between 2008 and 2010. The infection of echinococcus in sheep and cattle was investigated in abattoir. The infection of echinococcus in humans was investigated by visiting the local disease prevention and control centers. As revealed by three-year continual investigation, the positive rate of fecal antigen of Echinococcus granulosus was 13.16% in dogs, and the highest was 16.15%. The pastoral areas had the highest positive rate, and the areas more close to border had more serious infection. The average infection rate of echinococcus was 13.66% in sheep and cattle, and the highest was 17.90%. The average infection intensity was 1,36. The survey indicated that echinococcus has still existed in Inner Mongolia border area and threatens health of human and domestic animals seriously. Attention should be paid to prevention and control of echinococcus infection.

Our country is the lagrest country in processing wool in the world. In the paper, the texture of wool and process were introduced, and the effect factors also analysed to make worker understand the restrict factors and improve output and quality by technique.