Large-scale breeding of livestock and poultry is the main way of modern animal husbandry development.This breeding method is widely used by the majority of owners because of its easy technical promotion,low breeding c...Large-scale breeding of livestock and poultry is the main way of modern animal husbandry development.This breeding method is widely used by the majority of owners because of its easy technical promotion,low breeding cost and good economic benefits.But with the development of large-scale livestock and poultry breeding,the pollution and damage to the environment caused by fecal pollution from large-scale livestock and poultry breeding has been criticized by many environmentalists.In this paper,through visit and investigation of large-scale livestock and poultry farms,the methods and measures of environmental protection in the construction of large-scale livestock and poultry farms are proposed.展开更多
The cattlemen of the steppe are faced with climate risks whose consequences are at the origin of one of the essential mechanisms of the degradation of resources natural fodder, thus making uncertain the food of livest...The cattlemen of the steppe are faced with climate risks whose consequences are at the origin of one of the essential mechanisms of the degradation of resources natural fodder, thus making uncertain the food of livestock. Thus, faces to the changing socio-economic and climatic risks, the pastoral society has implemented different adaptive strategies to ensure the reproduction of its operating systems. The objective of this study is to analyze the patterns of the use of the space of the pastoral area called El-Bayadh in order to show how the actors adopt and adapt the techniques of production available in order to ensure the security of the production of their exploitation in an environment particularly fragile, hostile and vulnerable. It is therefore to take knowledge of the basic strategies implementation and the responses provided by the livestock producers to protect themselves against the consequences of a difficult climate in order to ensure the conduct of the food needs of their animals and the reproduction of their operating system.展开更多
Breeding record is an important way to implement standardized sheep raising,trace major sheep raising epidemic information and ensure the quality and safety of products for sheep-raising households or farms.Based on 8...Breeding record is an important way to implement standardized sheep raising,trace major sheep raising epidemic information and ensure the quality and safety of products for sheep-raising households or farms.Based on 849 questionnaires from 17 cities of Shandong Province,the paper firstly used the binary discrete model of Logit to analyze the factors influencing the establishing behavior of breeding records of sheep-raising households or farms and then used the ISM model to explain the relationship and hierarchy of each influencing factor.The result showed that seven factors including the education level of the deciders,farming scale,fixed number of farming years,degree of specialization,support of the government,whether to join the industrialization organization and the recognition of the breeding records have a significant impact on the establishing behavior of breeding records of the sheep-raising households or farms.Among them,the support of the government and the recognition of breeding records are the surface direct factors,degree of specialization and whether to join the industrialization organization are the middle indirect factors,the education level of the deciders,the farming scale and the fixed number of farming years are deep source factors.展开更多
Large-scale farming by agricultural land transfers has been increasingly promoted in recent years,but the possible impacts on crop production,especially cash crops,and soil acidification remain unclear.This study obta...Large-scale farming by agricultural land transfers has been increasingly promoted in recent years,but the possible impacts on crop production,especially cash crops,and soil acidification remain unclear.This study obtained data for 110 banana plantations in Long’an County,China,and categorized them into small(<0.67 ha),medium(0.67−6.7 ha),and large(>6.7 ha)to determine banana cultivation,nutrient management,and soil acidification rates on farms of the three sizes.Banana yield per unit area significantly increased with increased farm size,and large farms had the highest average yield(48.9 t·ha^(−1))with the least variation.Despite a significant increase in organic fertilizer and base cation inputs,nitrogen(N)surplus did not differ significantly with increasing farm size.With large farms,actual soil acidification rate was significantly lower by 19.1 to 24.0 keq·ha^(−1)·yr^(−1);however,potential soil acidification rate increased with increased overuse of phosphorus.Overall,larger banana plantations used fewer mineral N fertilizers reducing the rate of soil acidification and increasing the H+buffering provided by organic fertilizers.It is concluded that larger farms deliver the dual benefits of higher,less variable banana yield and mitigation of soil acidification by substituting organic N for mineral N fertilizers,supporting sustainable soil management and food production.展开更多
文摘Large-scale breeding of livestock and poultry is the main way of modern animal husbandry development.This breeding method is widely used by the majority of owners because of its easy technical promotion,low breeding cost and good economic benefits.But with the development of large-scale livestock and poultry breeding,the pollution and damage to the environment caused by fecal pollution from large-scale livestock and poultry breeding has been criticized by many environmentalists.In this paper,through visit and investigation of large-scale livestock and poultry farms,the methods and measures of environmental protection in the construction of large-scale livestock and poultry farms are proposed.
文摘The cattlemen of the steppe are faced with climate risks whose consequences are at the origin of one of the essential mechanisms of the degradation of resources natural fodder, thus making uncertain the food of livestock. Thus, faces to the changing socio-economic and climatic risks, the pastoral society has implemented different adaptive strategies to ensure the reproduction of its operating systems. The objective of this study is to analyze the patterns of the use of the space of the pastoral area called El-Bayadh in order to show how the actors adopt and adapt the techniques of production available in order to ensure the security of the production of their exploitation in an environment particularly fragile, hostile and vulnerable. It is therefore to take knowledge of the basic strategies implementation and the responses provided by the livestock producers to protect themselves against the consequences of a difficult climate in order to ensure the conduct of the food needs of their animals and the reproduction of their operating system.
基金Supported by Project of Shandong Provincial Department of Agriculture(SDAIT-09-011-11)
文摘Breeding record is an important way to implement standardized sheep raising,trace major sheep raising epidemic information and ensure the quality and safety of products for sheep-raising households or farms.Based on 849 questionnaires from 17 cities of Shandong Province,the paper firstly used the binary discrete model of Logit to analyze the factors influencing the establishing behavior of breeding records of sheep-raising households or farms and then used the ISM model to explain the relationship and hierarchy of each influencing factor.The result showed that seven factors including the education level of the deciders,farming scale,fixed number of farming years,degree of specialization,support of the government,whether to join the industrialization organization and the recognition of the breeding records have a significant impact on the establishing behavior of breeding records of the sheep-raising households or farms.Among them,the support of the government and the recognition of breeding records are the surface direct factors,degree of specialization and whether to join the industrialization organization are the middle indirect factors,the education level of the deciders,the farming scale and the fixed number of farming years are deep source factors.
基金funded by Major Science and Technology Project of Yunnan Province(202102AE090053-2)National Natural Science Youth Foundation of China(41907142)Natural Science Foundation of Hainan Province(422MS095)。
文摘Large-scale farming by agricultural land transfers has been increasingly promoted in recent years,but the possible impacts on crop production,especially cash crops,and soil acidification remain unclear.This study obtained data for 110 banana plantations in Long’an County,China,and categorized them into small(<0.67 ha),medium(0.67−6.7 ha),and large(>6.7 ha)to determine banana cultivation,nutrient management,and soil acidification rates on farms of the three sizes.Banana yield per unit area significantly increased with increased farm size,and large farms had the highest average yield(48.9 t·ha^(−1))with the least variation.Despite a significant increase in organic fertilizer and base cation inputs,nitrogen(N)surplus did not differ significantly with increasing farm size.With large farms,actual soil acidification rate was significantly lower by 19.1 to 24.0 keq·ha^(−1)·yr^(−1);however,potential soil acidification rate increased with increased overuse of phosphorus.Overall,larger banana plantations used fewer mineral N fertilizers reducing the rate of soil acidification and increasing the H+buffering provided by organic fertilizers.It is concluded that larger farms deliver the dual benefits of higher,less variable banana yield and mitigation of soil acidification by substituting organic N for mineral N fertilizers,supporting sustainable soil management and food production.
