Does your coop need light?
University of Alaska Fairbanks "Provide layers with 14 hours of light. This will require artificial light through much of the winter. A 20 to 40 watt bulb on a timer is adequate for 12 birds."
University of Saskatchewan poultry scientists in Saskatoon tell us that when pullets are past 20 weeks of age, "Gradually increase from 12 to 16 hours/day"
Consistency is important with any livestock and probably greatly so with chickens. In South and Southeast Asia, these birds evolved with nearly equal day and night hours. Of course, they are now in poultry operations and backyards, all over the world.
So, do you need supplemental lighting? I think it all depends on where you live. I live near the 49th parallel but since the US center of population is somewhere in Missouri and Canada has only a little more than 1/10th of the US population, I'm sure that most people with backyard chickens live to the south of me.
Since I'm at about 48° North latitude, I'm confident that my hens benefit from artificial light. I spent a little time today to try to find out how much natural light is available at various latitudes in North America. I looked at latitudes north and south of me and wrote down some numbers using sunrise & sunset information for December 21st. Here's what I came up with:
28°N
Orlando, Fla.
Corpus Christi, Texas
10 hours 20 minutes
38°N
Sacramento, Calif.
St. Louis, Missouri
Washington, D.C.
9 hours 27 minutes
43°N
Boise, Idaho
Milwaukee, Wis.
London, Ont., Can
Manchester, NH
8 hours 56 minutes
48°N
Victoria, B.C., Can
Grand Forks, N.D.
8 hours 23 minutes
53°N
Edmonton, Alb., Can
7 hours 27 minutes
58°N
Juneau, Alaska
6 hours 23 minutes
65°N
Fairbanks, Alaska
3 hours 43 minutes
I hope I did the math right, and I'll let you decide if your laying hens need supplemental light
.
Steve
University of Alaska Fairbanks "Provide layers with 14 hours of light. This will require artificial light through much of the winter. A 20 to 40 watt bulb on a timer is adequate for 12 birds."
University of Saskatchewan poultry scientists in Saskatoon tell us that when pullets are past 20 weeks of age, "Gradually increase from 12 to 16 hours/day"
Consistency is important with any livestock and probably greatly so with chickens. In South and Southeast Asia, these birds evolved with nearly equal day and night hours. Of course, they are now in poultry operations and backyards, all over the world.
So, do you need supplemental lighting? I think it all depends on where you live. I live near the 49th parallel but since the US center of population is somewhere in Missouri and Canada has only a little more than 1/10th of the US population, I'm sure that most people with backyard chickens live to the south of me.
Since I'm at about 48° North latitude, I'm confident that my hens benefit from artificial light. I spent a little time today to try to find out how much natural light is available at various latitudes in North America. I looked at latitudes north and south of me and wrote down some numbers using sunrise & sunset information for December 21st. Here's what I came up with:
28°N
Orlando, Fla.
Corpus Christi, Texas
10 hours 20 minutes
38°N
Sacramento, Calif.
St. Louis, Missouri
Washington, D.C.
9 hours 27 minutes
43°N
Boise, Idaho
Milwaukee, Wis.
London, Ont., Can
Manchester, NH
8 hours 56 minutes
48°N
Victoria, B.C., Can
Grand Forks, N.D.
8 hours 23 minutes
53°N
Edmonton, Alb., Can
7 hours 27 minutes
58°N
Juneau, Alaska
6 hours 23 minutes
65°N
Fairbanks, Alaska
3 hours 43 minutes
I hope I did the math right, and I'll let you decide if your laying hens need supplemental light
Steve