Yes you got it corrrect. The book is called "The call of the Hen" by Walter Hogan. Anyone can get it on Googlebooks.
My original thought was that he seemed to have alot of experience in picking hens bred for three catagories of temperments. Nervous type, middle of the road type, and very calm type. He then has a way of examining the keel bone and pinching the breast meat to ascertain if the bird is in condition or needs more food intake. He then evaluates the space between the end of the keel bone and the rib bones. The larger that this space is the better for egg production. He writes that the hens with small distance will not have enough gut capacity to digest enough feed for maximizing egg production. He shows his method for finger measuring this distance. There is also a rib bone measurement pinch and evaluation in relationship to egg size ability.
I wonder if what he calls a dual purpose, 200 egg per year, measured hen, has any correlation to what we are looking for in our Heritage RIR's? Has anyone here tried this?
My original thought was that he seemed to have alot of experience in picking hens bred for three catagories of temperments. Nervous type, middle of the road type, and very calm type. He then has a way of examining the keel bone and pinching the breast meat to ascertain if the bird is in condition or needs more food intake. He then evaluates the space between the end of the keel bone and the rib bones. The larger that this space is the better for egg production. He writes that the hens with small distance will not have enough gut capacity to digest enough feed for maximizing egg production. He shows his method for finger measuring this distance. There is also a rib bone measurement pinch and evaluation in relationship to egg size ability.
I wonder if what he calls a dual purpose, 200 egg per year, measured hen, has any correlation to what we are looking for in our Heritage RIR's? Has anyone here tried this?