Poultry laboratory guide ; a manual for the study of practical poultry keeping . te on which they werelaid, so that when it comes time to place themin the incubator the older ones can be used first,and also that eggs of nearly the same age can beput in the incubator together. Under the most favorable circumstance theeggs will vary to the extent that there is roomfor much selection. Select eggs of a medium Table Breed Age Large Cir-cumference Small Cir-cumference WeightPER Doz. T u I HensLeghorns | p^j;^^^ in. in. lib. oz, in. in. lib. oz. Plymouth Hens in. in
Poultry laboratory guide ; a manual for the study of practical poultry keeping . te on which they werelaid, so that when it comes time to place themin the incubator the older ones can be used first,and also that eggs of nearly the same age can beput in the incubator together. Under the most favorable circumstance theeggs will vary to the extent that there is roomfor much selection. Select eggs of a medium Table Breed Age Large Cir-cumference Small Cir-cumference WeightPER Doz. T u I HensLeghorns | p^j;^^^ in. in. lib. oz, in. in. lib. oz. Plymouth Hens in. in. lib. oz. Rocks L Pullets in. in. lib. oz. Wyandottes ? Hens in. in. lib. oz. [ Pullets in. in. lib. oz. Rhode Island f Hens in. in. lib. oz. Reds 1 Pullets in. in. lib. oz. ^ ^ f HensBrahmas | p^^^^^^ in. in. lib. oz. ^ , . f HensCochins jp^jj^^^ in. in. lib. oz r HensLangshans | p^jj^^^ in. in. lib. oz. Average of < ^1 I breeds in. in. lib. POULTRY LABORATORY GUIDE 17 size and average as regards color and selection should be influenced by the aver-age product of the hen or breed. The preceding table shows average sizes anddimensions and weights of eggs from our com-mon breeds. Measure and compare a number of eggs withthe above table; after a httle practice it will bevery easy to readily judge by sight and touchthe size, shape, and weight of each egg which ishandled. An unusually large egg may be afreak of nature and cannot be expected to unusually small egg may be defective andshould not be used for incubation. An even,uniform lot, assorted as to size, color, and shape,will be more apt to give the best results. An eggof unusual length or rotundity should not besaved, the probabihty being that a chick, if itdeveloped at all, would be so malformed as to beunable to leave the shell. The following figure illustrates normal andab
Size: 1288px × 1940px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectpoultry, bookyear1910
