...Distinction of sex by thismeans can be made after the ducklings are from 4to 6 weeks old... 
Harry M. Lamon 「Ducks and Geese」
...Whenhatched the ducklings are a creamy yellow...
Harry M. Lamon 「Ducks and Geese」
...The estimatesgiven as to the amount of equipment and capital requiredare based on the assumption that a plant isto be operated of sufficient size to have a yearly outputof about 30,000 ducklings...
Harry M. Lamon 「Ducks and Geese」
...This means therewould have to be on this plant a heated brooderhouse capacity for 15,000 ducklings...
Harry M. Lamon 「Ducks and Geese」
...The other 7500 ducklings capacity would be in thenumber 2 house, that is, a house where heat couldbe supplied in the early spring and where the temperaturecould be run up to 60 degrees...
Harry M. Lamon 「Ducks and Geese」
...The ducklings should be left in theincubator until they are thoroughly dried off...
Harry M. Lamon 「Ducks and Geese」
...Grading and Sorting the Ducklings...
Harry M. Lamon 「Ducks and Geese」
...Some ducklings do not grow as quickly as others,and these if left with ducklings larger than themselveswill not get their share of the feed and willnot do as well...
Harry M. Lamon 「Ducks and Geese」
...Exposure to the sun withoutshade will cause quite a heavy loss in ducklings...
Harry M. Lamon 「Ducks and Geese」
...A comparison of gains made by ducklings on twodifferent rations is shown in the following table...
Harry M. Lamon 「Ducks and Geese」
...One should not carry a lantern when movingamong the ducklings at night as this will causemoving shadows which are very likely to frightenand stampede the birds...
Harry M. Lamon 「Ducks and Geese」
...Drinking water is providedto the ducklings while in the brooder housesby means of a piped supply...
Harry M. Lamon 「Ducks and Geese」
...Occasionally duck growers complainthat their ducklings suffer from sore eyes...
Harry M. Lamon 「Ducks and Geese」
...Sorting Market Ducklings...
Harry M. Lamon 「Ducks and Geese」
...Quotations from the same source are given belowto give some idea of the range in price of the liveLong Island spring ducklings and likewise of liveold Long Island ducks or breeders...
Harry M. Lamon 「Ducks and Geese」
...In this casethe ducklings which the hen hatches should be givento her and she should be confined to some kind of acoop which will allow the ducklings to run at liberty...
Harry M. Lamon 「Ducks and Geese」
...It must beremembered, however, that ducklings do not requireas high a degree of heat as do baby chicks andshould be started off at a temperature of about 90degrees under the hover...
Harry M. Lamon 「Ducks and Geese」
便利！手書き漢字入力検索
この漢字は何でしょう？？