Nucleic acids in the spermatozoa of pure and strain crosses of White Leghorn cockerels.
Nucleic acids (DNA and RNA) were estimated in the spermatozoa of three pure strains (M, N and P) and three strain crosses (N X P, M X N and P X M) of White Leghorn cockerels. The average DNA content was 2.31 +/- 0.06 X 10(-9)mg/sperm. Most was found in the P X M strain cross and least in the P strain. The DNA content of the P strain was significantly lower than that in the other strains and it also had the lowest fertility and hatchability of all the strains. The average RNA content in poultry spermatozoa was 0.0522 +/- 0.0038 X 10(-9)mg/sperm. Again, most RNA was found in the P X M strain cross and least in the P strain. The P X M strain cross had a significantly higher RNA content than the rest of the strains. Thus, the P X M strain contained the most DNA and RNA whereas the P strain had least.
Sarkhel
B C
BC
Chakraborty
S
S
D000818:Animals; D002645:Chickens / Q000235:genetics*; D003433:Crosses, Genetic; D004247:DNA / Q000032:analysis* / Q000235:genetics; D008297:Male; D012313:RNA / Q000032:analysis* / Q000235:genetics; D013094:Spermatozoa / Q000032:analysis*
D012313:RNA; D004247:DNA