jackson homer curtis grant (4 résultats)

Etat : New. SUPER FAST SHIPPING.

Hardcover. Etat : G; red boards soiled o/w very. B&W photos (illustrateur).

Paperback. Etat : New. Print on Demand. This book unlocks the secrets to assessing the egg-laying ability and productivity of poultry. It equips readers with detailed observations and insights from the author's extensive research and collaboration with leading experts in the field. Learn how to identify nonlayers and gauge the laying potential of hens, even those yet to lay an egg. Discover how to distinguish birds that lay heavily throughout the season from those that produce minimally. The book delves into the connection between pigmentation and egg-laying, explaining how to assess production levels based on external physical characteristics like beak and shank color. By implementing these methods, poultry keepers can dramatically improve flock performance, increase profitability, and contribute to the wider poultry industry's efficiency and sustainability. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.