Dr. Zhang Yiwen

Why does DNA sexing for African Grey parrots sometimes cost more than for other parrots? As a laboratory manager who has handled thousands of avian DNA samples, I’d like to explain this question from a practical, technical, and industry perspective, rather than from marketing claims. What Do People Really Want to Know When Searching “African … Read more

How to Do DNA Gender Testing in Birds using Electrophoresis Protocol? Birds DNA gender testing is one of the most reliable and non-invasive methods for breeders, pesquisadores, and bird enthusiasts. Electrophoresis is a key step in confirming the results of PCR-based bird sexing tests. In this guide, we explain a detailed, step-by-step electrophoresis protocol for … Read more

Como fazer sexo com um pássaro periquito? Budgies (also known as parakeets) are one of the most popular pet birds in the world, thanks to their vibrant personalities, bright feathers, and ability to mimic sounds. But when it comes to determining whether your budgie is male or female, things can get tricky—especially for young birds or … Read more

Fazer sexo com um pássaro conure pode ser confuso, especialmente se você está confiando apenas nas características físicas. Aqui iremos orientá-lo através de métodos tradicionais e modernos – especialmente testes de DNA – para determinar com precisão o sexo da sua ave.. Se você é dono de um animal de estimação, criador, ou entusiasta de pássaros, você encontrará dicas práticas e informações apoiadas por especialistas aqui. 1. What Is … Read more

If you’ve ever tried to determine the sex of your pigeon just by looking—trust us, you’re not alone. At SENO Bird Sexing Lab, we’ve worked with thousands of pigeon breeders, hobbyists, and researchers who struggled to reliably identify male from female pigeons using visual cues alone. Neste blog, we’ll walk you through the two … Read more

When working with genetic material like DNA, choosing the right extraction method is crucial. Neste artigo, we will walk you through two key parts: What is TRIzol DNA extraction and how is it used? How do we extract pigeon DNA for testing—and why do we use an alternative method that’s faster and more practical? … Read more

PCR de rotavírus de pombo: The Fast and Reliable Way to Detect Viral Infections in Your Birds Pigeons—whether racing, mostrar, ou pássaros-correio - desempenham um papel significativo na vida de muitas pessoas. Mantê-los saudáveis ​​é essencial. Nos últimos anos, rotavirus has become a growing concern in pigeon flocks. Este vírus se espalha rapidamente e pode causar vômito, diarréia, e … Read more

1. PCR vs ELISA: Principles and Comparison in Bird Testing 1.1 PCR (Reação em Cadeia da Polimerase) PCR is a molecular biology technique used to amplify specific DNA or RNA sequences. Its core principle involves denaturation of DNA, primer annealing, and extension by DNA polymerase through thermal cycling, resulting in exponential amplification of target sequences (Mullis & … Read more

How Much is a DNA Test？ The Breakdown of DNA test cost. 1. Overview and Background In today’s rapidly advancing biotechnological landscape, DNA testing has become fundamental in fields ranging from medicine and agriculture to environmental monitoring. Our laboratory, based in China, has carved out a niche in offering affordable, high-quality DNA testing services with … Read more

If you have a DNA test kit in hand, you might wonder: Do DNA tests expire? The answer is—it depends on the sample and storage conditions! But before you throw away your test kit, let’s break down everything from what DNA is to how DNA tests work and whether they expire. What Is DNA? Think … Read more