相关实验视频

Updated: Jun 10, 2025

Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays

Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays

Published on: July 12, 2024

南美洲牛肉生产的未来

P S Baruselli¹, L A Abreu¹, A Menchaca²

¹Department of Animal Reproduction, University of São Paulo, São Paulo, Brazil.

|October 11, 2024

概括

南美牛肉生产正在通过辅助生殖技术 (ART) 得到改善. 定时人工授精 (FTAI) 和体外胚胎生产显著提高了牛群的遗传收益和生育率.

科学领域:

动物科学动物科学
生殖生物学生殖生物学
农业技术农业技术

背景情况:

南美牛肉生产面临着来自不同气候,品种和管理实践的挑战.
生殖效率是一个关键的限制,特别是在广泛的母牛和小牛系统.
辅助生殖技术 (ART) 为提高牛肉生产提供了解决方案.

研究的目的:

审查ART在南美牛肉生产中的应用和影响.
突出用于基因改进和效率的生殖技术的进步.
讨论新兴生物技术在可持续畜牧业中的潜力.

主要方法:

审查定时人工授精 (FTAI) 协议及其大规模应用.
对体外胚胎生产 (IVP) 趋势的分析,包括性别选择精子的使用.
检查固定时间胚胎移植技术 (FTET) 的采用率.
讨论在肉牛中的基因组选择和基因组编辑 (CRISPR/Cas).

主要成果:

FTAI被广泛应用,每年大约有20%的牛使用该技术,从而增加了分娩率和遗传收益.
在实验室生产的胚胎占南美94%的胚胎移植,显著改善了群体遗传学.
基因组选择与IVP相结合,通过减少代际间隔来加速遗传收益.

结论:

ART,特别是FTAI和IVP,已经大大提高了南美牛肉生产效率和遗传潜力.
像基因组编辑这样的新兴生物技术有望提高生产力,弹性和抗病能力.
进一步的技术融合和区域知识对于可持续的牛肉生产和全球粮食安全至关重要.

关键词:

相当于二氧化碳 (CO) 的二氧化碳排放量.生产和生殖效率的生产和生殖效率利丰厚的牛肉和奶制品行业可持续发展可持续性可持续性

更多相关视频

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals

Published on: September 7, 2015

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants

Published on: April 30, 2016

相关概念视频

Plant Breeding and Biotechnology

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.

What is Climate?

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

Microorganisms in Agriculture and Food industry

Microorganisms in Agriculture and Food industry

Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...

Recombinant DNA

Recombinant DNA

Optimal Foraging

Optimal Foraging

How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.

The Central Dogma

The Central Dogma

The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...