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Novel transgenic pigs with enhanced growth and reduced environmental impact.

Author: CaiGengyuan, FanMingzhe, HeXiaoyan, HuangMiaorong, LiGuoling, LiNing, LiZicong, LiuDewu, MengFanming, MoJianxin, ShiJunsong, SunYue, WangDehua, WangHaoqiang, WuZhenfang, YangHuaqiang, YangJinzeng, ZhangJian, ZhangMao, ZhangRan, ZhangXianwei, ZhengEnqin, ZhongCuili, ZhouRong

Research Support, Non-U.S. Gov'tResearch funding provided by government agencies outside the United States.
Journal ArticleAn article published in an academic or professional journal that reports original research or scholarly analysis.

Overview

Inefficient feed digestion in pig production leads to excessive nutrient release into the environment, such as phosphorus and nitrogen. To address this issue, this study developed transgenic pigs expressing three microbial enzymes (β-glucanase, xylanase, and phytase) in their salivary glands. The transgenic enzymes were successfully expressed, enhancing the digestion of non-starch polysaccharides and phytate in feed. This resulted in a 23.2-45.8% reduction in fecal nitrogen and phosphorus output, while also improving growth rate by 23.0% (gilts) and 24.4% (boars) compared to wild-type littermates. The transgenic pigs exhibited a 11.5-14.5% improvement in feed conversion rate. These findings suggest that the transgenic pigs are a promising resource for enhancing feed efficiency and reducing environmental impact.
Paper Details　
Original Abstract of the Article :
In pig production, inefficient feed digestion causes excessive nutrients such as phosphorus and nitrogen to be released to the environment. To address the issue of environmental emissions, we established transgenic pigs harboring a single-copy quad-cistronic transgene and simultaneously expressing t...See full text at original site
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引用元：
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5963925/

データ提供：米国国立医学図書館（NLM）

Transgenic Pigs: A Greener Future for Pork Production

This study explores a groundbreaking approach to make pig production more sustainable by genetically engineering pigs to improve their digestion. They created transgenic pigs with a single-copy quad-cistronic transgene that simultaneously expresses three microbial enzymes: β-glucanase, xylanase, and phytase in the salivary glands. These enzymes enhance digestion of non-starch polysaccharides (NSPs) and phytate in the feed, which leads to less nutrient waste and a significant reduction in environmental emissions.

The Eco-Conscious Pig: A Solution to Nutrient Waste

This study shows that the transgenic pigs could be a game-changer in the fight against agricultural pollution. With a reduction of 23.2-45.8% in fecal nitrogen and phosphorus outputs and a 23.0-24.4% improvement in growth rate, the transgenic pigs demonstrate a significant step toward more sustainable pig production. Imagine a world where pig farms have a smaller environmental footprint! This research is paving the way for a future where food production can be more eco-friendly.

Delicious and Sustainable: The Future of Pork?

The findings suggest that these transgenic pigs could lead to a more sustainable pork production system. By reducing waste and improving feed efficiency, these pigs have the potential to minimize the environmental impact of pork farming, which is a huge boon to the environment. As consumers become more conscious of sustainability, these eco-friendly pigs could become a favorite choice for pork lovers.

Dr.Camel's Conclusion

This study provides a compelling case for the use of biotechnology to improve food production practices. The transgenic pigs demonstrate the potential for enhancing feed efficiency and reducing environmental impact in agriculture. It's a testament to the innovative solutions that can be developed to address global challenges and create a more sustainable future for our planet.
Date :
  1. Date Completed 2019-05-01
  2. Date Revised 2019-05-01
Further Info :

Pubmed ID

29784082

DOI: Digital Object Identifier

PMC5963925

SNS
PICO Info
in preparation
Languages

English

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