breeding technology
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2022 ◽  
Vol 14 (2) ◽  
pp. 971
Author(s):  
Linde Götz ◽  
Miranda Svanidze ◽  
Alain Tissier ◽  
Alejandro Brand Duran

The CRISPR gene-editing (GE) breeding method is used to increase the resilience of high-yielding tomato cultivars against pests and diseases, reducing crop protection requirements. This study investigated consumers’ willingness to buy CRISPR GE tomatoes in a repeated discrete-choice experiment. We observed a strong positive effect of providing information on the CRISPR breeding technology, while the sensory experience of the CRISPR GE tomatoes in a visit to a greenhouse had a rather weak, predominantly negative effect on the participants’ willingness to buy CRISPR GE tomatoes. We found that roughly half of the 32 participants demonstrated constant CRISPR GE tomato choices during the experiments, and these participants were mainly employed as scientists. However, the rest of the participants changed their CRISPR GE tomato choices, with the majority showing an increase in their willingness to buy CRISPR GE tomatoes; these “changers” were dominated by non-scientists. Science communication on CRISPR GE breeding technology should target people with little knowledge about the technology, and consumers of organic tomatoes seem to have more specified, stable preferences regarding the technology. Further, scientific information about the CRISPR GE methodology should preferentially be provided when new technology and information about it are not yet widespread and people have not yet formed a strong opinion about the technology.


2022 ◽  
Author(s):  
Ching-Fu Tu ◽  
Chin-kai Chuang ◽  
Tien-Shuh Yang

2021 ◽  
Vol 53 (4) ◽  
pp. 337-349
Author(s):  
Serry Koh ◽  
Youri Choi ◽  
Joo Young Lee ◽  
Jiyoung Jang ◽  
Kyuwhan Choi

Author(s):  
Venus Leopardas ◽  
◽  
Mariefe Quiñones ◽  
Lovella Calala ◽  
Sandra Manulat ◽  
...  

Reproductive traits of white teatfish Holothuria fuscogilva from Laguindingan, Misamis Oriental were investigated from February to July 2020. Gonad samples from 62 adult individuals weighing 1,240g to 5,800g were collected and examined macroscopically and microscopically to determine gonad morphology, sex ratio, gonad maturity, and gonad index. Gonads were composed of numerous branched tubules of varying lengths and frequency of bifurcations arising from the gonad basis. There was no significant variation in the ratio of male to female white teatfish (x2=2.32, α=0.05) and were mostly mature in May (weighing 1,750g–4,000g in males and 2,600g-3,900g in females) with relatively high gonad output. Information on gonad maturation is useful in the development of a successful breeding technology for this economically important sea cucumber species.


Author(s):  
K. Kramer ◽  
F. L. B. Meijboom

AbstractSome breeding technology applications are claimed to improve animal welfare: this includes potential applications of genomics and genome editing to improve animals’ resistance to environmental stress, to genetically alter features which in current practice are changed invasively (e.g. by dehorning), or to reduce animals’ capacity for suffering. Such applications challenge how breeding technologies are evaluated, which paradigmatically proceeds from a welfare perspective. Whether animal welfare will indeed improve may be unanswerable until proposed applications have been developed and tested sufficiently and until agreement is reached on how to conceptualize animal welfare. Moreover, even if breeding technologies do improve animal welfare, they might be objected to on other ethical grounds. Ethical perspectives on earlier animal biotechnologies are relevant for today’s breeding technologies and their proposed applications, but may need reinterpretation. The current paper applies the concept of telos, which previously figured mainly in debates on classical genetic engineering, to genomic selection and genome editing aimed at improving animal welfare. It critiques current (Rollin’s and Hauskeller’s) accounts of telos and offers an alternative conceptualization that applies to recently proposed applications of breeding technologies. This account rejects both removing the desire to pursue characteristic activities and altering animal bodies in ways that compromise their ability to perform such activities, but conditionally allows increasing robustness against environmental stress. Our account of telos enriches ethical debate on these breeding technology applications by insisting on the connection between the good life, an animal’s constitution, and its activities, thus countering reductive conceptions of welfare.


2021 ◽  
Vol 32 ◽  
pp. 74-80
Author(s):  
Yu. M. Pokhylko ◽  
Yu. M. Pokhylko ◽  
N. O. Kravchenko ◽  
O. O. Shakhovnina

Objective. Evaluate the efficiency and calculate the economic feasibility of using a new strain of lactic acid bacteria Lactobacillus sp. 13/2 in rabbit breeding technology under industrial conditions. Methods. Microbiological, economical, statistical. Results. The average weight of animals at the end of fattening was almost the same in both groups. However, when using a strain of lactic acid bacteria Lactobacillus sp. 13/2 in rabbit breeding technology, lower mortality rate in young animals and reduction of feed costs for their fattening was reported in comparison with the control. In the experimental group, animal mortality rate was 2.94 % versus 12.5 % in the control group, the average feed consumption for fattening per 1 kg of live weight gain decreased by 9 %. A positive economic effect in the experimental group was observed when the cost of sales increased per 1 head by UAH 7.48 (4 %) if the carcass price was UAH 140/kg. At the same time, the prime cost of 1 kg of gain decreased by UAH 1.98 (9 %). Also, the use of lactic acid bacteria reduced the cost of feed consumed per 1 head by UAH 1.77 (5 %) if the cost of feed was UAH 6/kg. Despite the decrease in the profitability of rabbit production by 1.5 %, the use of a new promising strain of lactic acid bacteria Lactobacillus sp. 13/2 during the fattening of rabbits had a positive effect on the maintenance of livestock, resulting in the decreased lost profit in the experimental group by UAH 277.08 (75 %). In terms of 1 head, the lost profit in the experimental and control groups was UAH 2.79 and UAH 13.99, respectively, due to which the use of lactic acid bacteria is completely regained. Conclusion. The positive effect of the use of Lactobacillus sp. 13/2 in rabbit breeding technology, which is manifested by a reduction in animal mortality and a reduction in feed costs for fattening, was established. The use of lactic acid bacteria helps to increase the economic efficiency of rabbit breeding, especially due to the reduction of lost profits. The economic effect is achieved without significant additional costs. The additional costs associated with the use of lactic acid bacteria are regained.


Author(s):  
Geoff Simm ◽  
Geoff Pollott ◽  
Raphael Mrode ◽  
Ross Houston ◽  
Karen Marshall

Abstract This chapter discussed the effects of applying the different principles in animal breeding such genetic analysis, predicting breeding values, use of tools and breeding technology, selection response within breeds, and strategies for genetic improvements in dairy cattle.


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