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Thank you for making the requested corrections to your article and I am pleased to accept your article for publication
I apologise for the long delay in obtaining a review of your manuscript. However I am pleased that the reviewers both recommend only minor revisions to your paper
Please take into account the comments of the first reviewer that are pasted below. In addition, please make corrections as recommended by reviewer 2 in their annotated copy of your manuscript attached as a separate file.
Adequate and supported by the results
1) Abstract: "…region (small, equator and…" should probably read "…region (small pole, equator and…"
2) Abstract: sentence starts with "And": "…light. And the transmittance…"
3) Abstract: undefined abbreviation: "…the PT of the…"
4) Line 37: Keywords are far too vague/general - use more specific words, e.g. eggshell pigment, animal husbandry, chicken rearing, etc.
5) Line 70 (and throughout): "…percent transmittance of light (PT)…"…formally, transmittance is a ratio thus has values from 0 to 1. For percentage values, better to use the term "transmission".
6) Line 85: "…regions (small, equator…" should be "…regions (small pole, equator…"
7) Line 86: "…ΔE represents the chrominance difference value…" – this would be better defined as the "CIE ΔE colour distance", chrominance can have a distinct meaning, different to that used here.
8) Line 87-89: "L* represents the white and the black of the sample, with the increase and the decrease in the value representing slanting white and black, respectively;"… L is luminance or brightness. This sentence should be rephrased, as should the following sentences to use a different term to the rather confusing "slanting". Values a and b represent colour values along the red-green and yellow-blue opponent axes, respectively.
9) Table 1 – would probably be sufficient to give values to 1 decimal place.
10) Figure1 – probably unnecessary. If kept, change "date line" to "data line"
This is an interesting manuscript that reports on studies investigating the effect of shell colour on light stimulation effects in developing embryos. It is suitable for publication following minor revision, as indicated on the manuscript.
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