Budi, Indarsih and Djoko, Kisworo and Hasil, Tamzil
(2021)
Egg shape index for sex determination of post-hatch chicks in Pekin ducks: a solution for smallholder duck farming in Lombok Indonesia.
Fakultas Peternakan.
(Unpublished)
Abstract
Abstract
This study was conducted to assess how the egg shape index determines the sex of newly hatched chicks of Pekin ducks. Three hundred and sixty fertile duck eggs were incubated with a local electric hatching machine and 340 Pekin ducklings post-hatch were used. Multiple logistic regression, Chi-square test and Pearson’s correlation were applied for evaluating egg weight, egg length, egg width and egg shape index in relation to gender determination. Results showed that the average weight of Pekin duck eggs was 67.5 ± 5.9 g, with a mean length of 60.7 ± 3.1 mm, mean width of 44.7 ± 0.9 mm and an average shape index of 76.2 ±1.7 and 70.9±2.8 for rounded and elongated eggs respectively. Rounded eggs had 82.0% conformation rate for female offspring, while elongated eggs had 77.7% confirmation for male offspring. The correlation coefficients were highly positive (0.71) and highly significant (p<0.001) for the shape index as predictor of sex of the offspring implying that egg shape index is a suitable parameter for sex identification
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Egg shape index for sex determination of post-hatch chicks in Pekin ducks: a solution for smallholder duck farming in Lombok Indonesia. (deposited 20 Oct 2021 23:45)
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