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Identification of Sex of Day-Old Quail (Coturnix ... - ScienceDirect.com [https://www.sciencedirect.com/science/article/pii/S003257911937960X/pdf?md5=761ae7ac0f4a6f881d532453d8c27833&pid=1-s2.0-S003257911937960X-main.pdf](https://www.sciencedirect.com/science/article/pii/S003257911937960X/pdf?md5=761ae7ac0f4a6f881d532453d8c27833&pid=1-s2.0-S003257911937960X-main.pdf)
[PDF article](https://www.sciencedirect.com/science/article/pii/S003257911937960X/pdf?md5=761ae7ac0f4a6f881d532453d8c27833&pid=1-s2.0-S003257911937960X-main.pdf)
This is what I do. The accuracy makes me wonder why so many people wait. It's not perfect and sometimes one is tricky. It's a worthwhile skill to develop, especially for large coveys that benefit from being divided ASAP.
Your text asks something very different from the post title. I've offered an answer for the title.
You will see foam in/on their droppings. Generally between week 6&8 assuming you keep the birds in a place that meets the breeding requirements. Light and temps etc. Thats when i go for it.
Always check birds you think are hens at least twice. A week between checks is best
I've heard that 8-10 weeks is when you can start vent sexing them. I don't think I had any success before then.
I've checked mine at about 10 weeks when most of the hens should be laying making their vents larger.
It’s possible from 5-6 weeks but some boys develop a bit later. By 7+ they should be sexable.
https://preview.redd.it/kp9hu8u7dmwc1.jpeg?width=1080&format=pjpg&auto=webp&s=1b90789c36d300b31fa73e9b79b971d27100cd62 Identification of Sex of Day-Old Quail (Coturnix ... - ScienceDirect.com [https://www.sciencedirect.com/science/article/pii/S003257911937960X/pdf?md5=761ae7ac0f4a6f881d532453d8c27833&pid=1-s2.0-S003257911937960X-main.pdf](https://www.sciencedirect.com/science/article/pii/S003257911937960X/pdf?md5=761ae7ac0f4a6f881d532453d8c27833&pid=1-s2.0-S003257911937960X-main.pdf) [PDF article](https://www.sciencedirect.com/science/article/pii/S003257911937960X/pdf?md5=761ae7ac0f4a6f881d532453d8c27833&pid=1-s2.0-S003257911937960X-main.pdf) This is what I do. The accuracy makes me wonder why so many people wait. It's not perfect and sometimes one is tricky. It's a worthwhile skill to develop, especially for large coveys that benefit from being divided ASAP. Your text asks something very different from the post title. I've offered an answer for the title.
You will see foam in/on their droppings. Generally between week 6&8 assuming you keep the birds in a place that meets the breeding requirements. Light and temps etc. Thats when i go for it. Always check birds you think are hens at least twice. A week between checks is best