Performance of spring-calving beef suckler cows and their progeny to slaughter on intensive and extensive grassland management systems [0.03%]
春繁肉牛母牛及其后代在集约化和粗放型草地管理模式下的表现至屠宰前性能
M J Drennan,M McGee
M J Drennan
The performance of rotationally grazed beef suckler cows and their progeny to slaughter on two lowland grassland management systems differing in stocking rate (SR) and fertiliser nitrogen (N) level was compared over eight years. The two Sys...
Hygienic and ecological risks connected with utilization of animal manures and biosolids in agriculture [0.03%]
与在农业中利用动物粪便和生物固体有关的卫生和生态风险
Jan Venglovsky,Jose Martinez,Iveta Placha
Jan Venglovsky
In recent years the fate of human and animal pathogen microorganisms as a potential pollutant of the environment has been paid increased attention. Substantial quantities of these compounds and their metabolites are excreted, flushed down t...
Closing yield gaps in smallholder goat production systems in Ethiopia and India [0.03%]
埃塞俄比亚和印度小规模山羊生产系统中的闭合产量差距
Dianne Mayberry,Andrew Ash,Di Prestwidge et al.
Dianne Mayberry et al.
Small ruminants such as goats are an important source of income for smallholder farmers in South Asia and Sub Saharan Africa: they may be kept as a stepping stone to owning larger and higher-value animals such as cattle or buffalo, or provi...
Stephen C Bishop,John A Woolliams
Stephen C Bishop
This paper considers the application of genetic and genomic techniques to disease resistance, the interpretation of data arising from such studies and the utilisation of the research outcomes to breed animals for enhanced resistance. Resist...
Optimal selection for multiple quantitative trait loci and contributions of individuals using genetic algorithm [0.03%]
应用遗传算法进行多个数量性状位点的最优选择及个体贡献评估
G Tang,P Lin,C Xu et al.
G Tang et al.
Two methods (Scheme A and Scheme B) were developed to optimize the relative weights on quantitative trait loci (QTL) and contributions of selected individuals simultaneously to maximize selection response while constraining the rate of inbr...