scholarly journals Effect of egg weight and oviposition time on hatchability and post hatch performance of Japanese quail (Coturnix coturnix japonica)

2020 ◽  
Vol 40 (1) ◽  
pp. 102-110
Author(s):  
L. T. Egbeyale ◽  
H. O. Fatoki ◽  
O. A. Adeyemi

A total of three hundred (300) Japanese quail eggs were used to study the effect of oviposition time and egg weight on hatchability and post-hatch performance. The eggs were grouped into two (2) of 150 eggs based on the oviposition time of Morning and Afternoon. The eggs in each group (150) were further sub-grouped based on the egg weights of 8 to10 grams designated as small sized and 10.1 to 12 grams designated as big size in a 2 x 2 factorial design trial of 4 treatments. Each treatment had seventy five (75) eggs each with three replicates. The four treatments groups were; Big Morning, Small Morning, Big Afternoon, Small Afternoon. Each treatment group was replicated three times with each replicates consisting of twenty-five (25) eggs. Hatchability parameters were determined during incubation period of 18 days. The quail chicks were fed ad-libitum and the post- hatch performance was studied for eight (8) weeks. The data generated were subjected to a one-way analysis of variance. Oviposition time and size of the egg significantly (p<0.05) affected the average hatch weight. The effect of interaction of oviposition time and egg size on post-hatch performance did not have any significant (p>0.05) influence. Oviposition time had a positive correlation (p<0.05) with egg weight, egg weight loss, percent egg weight loss and fertility percentage but negatively correlated with average hatch weight and hatchability percentage. Meanwhile egg size had a positive significant (p<0.01) correlation with average hatch weight. It was concluded that eggs ranging between 10.1 to 12 grams will produce higher hatch weight. However, setting of Japanese quail eggs ranging between 8 to 12 grams irrespective of oviposition time could not affect post-hatch performance of the chicks.

2020 ◽  
pp. 1-12
Author(s):  
Asolo Chioma Helen ◽  
Okeke John Joseph ◽  
Okafor Ukamaka Elizabeth ◽  
Mmayie Francis Nnamdi ◽  
Okpoko Obinna Valentine

There is need to look for ingredients to be added to the poultry feed used to raise quail birds for better results on the birds and to enhance quail farming in Nigeria. Aim: This study was carried out to conduct a twelve weeks feeding trial to determine the effect of feeding varying levels of Ocimum gratissimum on growth, egg size using  two (2) weeks old Japanese quail (Coturnix coturnix japonica). Materials and Methods: One hundred and twenty birds were allocated to four dietary treatment groups with three (3) replicates of ten (10) birds each in a completely randomized design experiment with feeding ratio of Control (C) containing 0 g/kg; T1, 20 g/kg; T2, 40 g/kg and T3, 60 g/kg of dried and ground Ocimum gratissimum. Feed and water were provided ad libitum throughout the experimental period. Results: The result obtained showed that for Weight gain (WG), Percentage weight gain (PWG), specific growth rate (SRG), feed conversion ratio (FCR), the T1, (20 g/kg) had the highest values (122.56 g, 234%, 0.623 and 23.49 respectively) while T3, (60 g/kg) had the least values (81.92 g, 156%, 0.487, 34.92 respectively) as a result of weight loss. But the C, (0 g/kg) had the highest value of 9.149 for protein efficiency ratio (PER) as T3, (60 g/kg) had the least value (5.535). T2, (40 g/kg) had the highest values for mean egg weight, length, width (10.01, 8.77 and 7.81 respectively) while T1, (20 g/kg) had the least values (8.84, 7.63 and 6.70 respectively). Weight gain, feed utilization indices and egg size were the response criteria that were monitored, recorded and subjected to Anova and T-test. There were significant difference (P≤0.05) observed for mean weight gain, percentage weight gain, specific growth rate, food conversion ratio, protein efficiency ratio, circumference of the widest point of the eggs at long axis (length) while no significant difference (P>0.05) were observed for weight of eggs and circumference of the widest point of the eggs at short axis (width). Conclusion: From this study, quail birds fed T1, (20 g/kg) gave the results with no negative effect on the birds and can be recommended in Japanese quail diets.


2012 ◽  
Vol 4 (1) ◽  
pp. 85-86 ◽  
Author(s):  
R. A. Patil Bhagat ◽  
S. B. Zade ◽  
P. N. Charde

Study on newly laid eggs of Japanese quail Coturnix coturnix japonica was undertaken for a period of 18 days on incubation in controlled laboratory conditions. The aim of the study was to evaluate the changes in egg weight, shell weight, yolk weight and embryo weight throughout the period of incubation. It had been found that as the embryo grows, the egg weight slowly goes down while embryo weight goes on increasing day by day. The study inferred that the shift or reduction in weight of egg is attributable to the progressive growth of embryo which utilizes its yolk contents for its growth. Apart from this, the shell weight also reduced from first day to last day in order to facilitate hatching of the embryo.


2019 ◽  
Vol 28 (6) ◽  
pp. 1599-1607
Author(s):  
Kananbala Patra ◽  
Sujata Puspamitra ◽  
Aryadhara Das ◽  
Bandi K. Mallik ◽  
Prafulla K. Mohanty

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