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Articles by Marius DOCOLINA
Total Records ( 1 ) for Marius DOCOLINA
  Simona PASCALAU and Marius DOCOLINA
  The research was conducted on eggs taken from Lohmann Brown hybrid, a hybrid created from pure lines (four lines) of Rhode-Island, which produce brown-shelled eggs. 60 eggs for consumption were analyzed, harvested at different ages (36 respectively 50 weeks). The recorded data were statistically processed and compared, from the Student test. The average weight of eggs, collected from birds aged 36 weeks was 65.66±0.41 g, lower by 0.66 g from the average weight recorded at 50 weeks, but the difference is not statistically assured of the value of “t”, below the lowest threshold of significance; the index variation values indicating a good uniformity of the analyzed eggs. The form index calculated form the analyzed eggs, was identical in both ages groups of hens, having averaged value of 1.25±0.01. The degree of pigmentation of the yolk had registered average of 8.22±0.14 at age 36 weeks, and 4.25±0.13 at 50 weeks, with a calculated difference of 3.97. The difference, very significant statistically (t=20.40), is explained by the administration in the first period a vitamin supplement AD3E. Internal components of the egg weight have clear and significant differences statistically, in both yolk and white. For the yolk, the values recorded for the two ages were of 15.52±0.17 g (36 weeks) and 17.28±0.19 g (50 weeks), higher by 1.76 g for eggs collected at the age of 50 weeks. The average weight of white egg, have average values of 42.03±0.41 g (36 weeks) and 40.30±0.43 g (50 weeks). The quality of the white egg by Haugh units not differ essentially from the two age groups, with averages of 91.40± 046 from eggs collected at 36 weeks and 89.28±0.41 from eggs collected at 50 weeks. Weight and shell thickness have almost the same average values for both characters (for both ages). Rank eggs into categories according to their weight, revealed the following: the hens aged 36 weeks, the total number of eggs analyzed (60 pc.), 70% (42 pc) have weights ranging from 63-73 g (Class L), and only 30% had weights ranging between 53-63 g (Class M); at 50 weeks were 80% of eggs had weight between 63-73 g and only 20% had weight between 53-63 g. With one exception, all 120 eggs were analyzed weights over 60 g.
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