Trends in in ovo sexing technologies:insights and interpretation from papers and patents  

作　　者：Matthias Corion Simao Santos Bart De Ketelaere Dragana Spasic Maarten Hertog Jeroen Lammertyn 

机构地区：[1]KU Leuven,BIOSYST-MeBioS Biosensors Group,Willem de Croylaan 42,Leuven B‑3001,Belgium. [2]KU Leuven,BIOSYST-MeBioS Biostatistics Group,Kasteelpark Arenberg 30,Leuven B‑3001,Belgium. [3]KU Leuven,BIOSYST-MeBioS Postharvest Group,Willem de Croylaan 42,Leuven B‑3001,Belgium.

出　　处：《Journal of Animal Science and Biotechnology》2023年第6期2239-2262,共24页畜牧与生物技术杂志（英文版）

基　　金：the Foundation for Food and Agricultural Research[EggTech-0000000028];the Research Foundation-Flanders[SB project 1SC7219N and SB project 1S54823N].

摘　　要：Numerous researchers and institutions have been developing in ovo sexing technologies to improve animal welfare by identifying male embryos in an early embryonic stage and disposing of them before pain perception.This review gives a complete overview of the technological approaches reported in papers and patents by performing a thorough search using Web of Science and Patstat/Espacenet databases for papers and patents,respectively.Based on a total of 49 papers and 115 patent families reported until May 2023 worldwide,11 technology categories were defined:6 non-optical and 5 optical techniques.Every category was described for its characteristics while assessing its potential for application.Next,the dynamics of the publications of in ovo sexing techniques in both paper and patent fields were described through growth curves,and the interest or actual status was visualized using the number of paper citations and the actual legal status of the patents.When comparing the reported technologies in papers to those in patents,scientific gaps were observed,as some of the patented technologies were not reported in the scientific literature,e.g.,ion mobility and mass spectrometry approaches.Generally,more diverse approaches in all categories were found in patents,although they do require more scientific evidence through papers or industrial adoption to prove their robustness.Moreover,although there is a recent trend for non-invasive techniques,invasive methods like analyzing DNA through PCR or hormones through immunosensing are still being reported(and might continue to be)in papers and patents.It was also observed that none of the technologies complies with all the industry requirements,although 5 companies already entered the market.On the one hand,more research and harmony between consumers,industry,and governments is necessary.On the other hand,close monitoring of the market performance of the currently available techniques will offer valuable insights into the potential and expectations of in ovo sexing techniques in th

关 键 词：Animal welfare In ovo sexing Male day-old chick culling Optical and non-optical techniques Patents and papers 

分 类 号：S813[农业科学—畜牧学]