Question

The table below shows experimental data from poultry scientists. Examine the table to answer the following questions.
Oviposition time, egg weight, chicken hatch weight and hatch weight/egg weight from young and mid-age broiler breeder flocks.
Flock age Oviposition time (h) n Egg weight (g) Chicken hatch weight (g) Chicken hatch weight/ egg weight (%)
Young Early 168 59.30.2a 38.80.2a 65.4

Middle 168 58.20.3b 37.80.3b 65.0

Late 168 58.70.1b 38.10.2b 64.9

Total 504 58.90.1 38.30.1 65.0

Mid Early 252 66.80.2a 45.80.2a 68.6

Middle 252 65.50.2b 44.00.3b 67.2

Late 252 66.00.2b 43.20.2c 65.5

Total 756 66.10.1 44.10.1 66.7

Which hypothesis were the poultry scientists likely testing?
A) The time of egg laying (oviposition) has an impact on egg weight.
B) Bigger eggs result in larger mature chickens.
C) Young hens have a harder time laying eggs than do older hens.
D) Egg weight is related to the weight of the hatchling (newly hatched chick).

Answer

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