Effect of Egg Storage Temperature and Storage Period Pre-incubation on Hatchability of Eggs in Three Varieties of Japanese Quail

Hassan, Khalid Hamid; Alsattar, Ali Rafea Abd

doi:10.11648/j.avs.s.2015030601.12

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…The hatching eggs were collected for each line during three days period, and transferred to the hatchery (Hassan and Abd -Alsattar, 2015), and the procedure was replicated for three hatches. The hatched chicks were raised until 14 weeks of age and the measurements were recorded for meat and egg production characteristics.…”

Section: Selection Proceduresmentioning

confidence: 99%

Genetic Selection for Body Weight in Japanese Quail (Coturnix coturnix japonica) Under Different Nutritional Environments

Hassan¹,

Fadhil²

2019

Adv. Anim. Vet. Sci.

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J apanese quail used in poultry industry for its meat and egg production due to many features such as low feed intake, low rearing area requirements, low breeding cost and high disease resistance (Narinc et al., 2010). Based on these advantages, the reared number of quails is gradually increasing in the world poultry industry as a valuable source for eggs and meat production. Commercially, quails are produced mainly for meat production in Europe countries and for egg production in Japan and used as a dual-purpose birds in many Asian countries (Minvielle, 1998). The National Research Council recommendations of crude protein was 24 % for growing Japanese quails (NRC, 1994). Global environment suffering from pollution from ammonia emission and nitrogen excretion from poultry industry, beside that the protein being the most expensive diet component which affect the total cost of production, so the recent trends are decreasing the protein levels in poultry diets without significant effects on production performance. Wen et al. (2017) recorded that quails reared on diets with crude protein range 17.61-25.32 % had no significant influence on carcass yield at 42 days of age. Most breeding programs that aimed to improve meat production are focused on increase live body weight and feed intake at fixed ages, and most studies carried out to increase the body weight in early periods using genetic selection which represent an important tool for genetic improvement in animal breeding program (Hassan, 2011; Fadhil and Hassan, 2018) or using outbreeding mating system between lines to get heterosis in the next generation (Hassan and Ali, 2017). Phenotypic selection used research Article Abstract | Japanese quail is an interested bird due to its early sexual maturity, high egg production and low requirements of housing space and feeding cost. Genetic selection was conducted for high four week body weight in Japanese quails using two different nutritional environments to determine the effect of nutritional environment on selection response of body. Japanese quails were selected under standard crude protein level diet (24.15 % CP) referred as SHW line, and under a low protein diet (18.07 % CP) referred as LHW line, and kept a control line for each nutritional environment as SCL and LCL respectively. The results showed that selection response for body weight of females in low protein diet (27.73 g.) was higher than males and females in selected line in standard protein diet (20.77 and 20.70 g. respectively). In general there were significant heavier body weight of birds in standard crude protein diet compared with low crude protein diet in each of base population, selected parents and progeny in first generation. There were significant differences between SHW and LCL in body weight and weight gain at six weeks of age, while there were significant differences between LHW and both SCL and LCL in feed intake and feed conversion at six weeks of age.

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Section: Selection Proceduresmentioning

confidence: 99%

Genetic Selection for Body Weight in Japanese Quail (Coturnix coturnix japonica) Under Different Nutritional Environments

Hassan¹,

Fadhil²

2019

Adv. Anim. Vet. Sci.

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Features of embryonic development of meat quails

Kolokolnikova¹,

Понтанькова²

2021

Sib. vestn. s-h. nauki

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The influence of breed and storage period of hatching eggs on the duration and results of incubation and the development of quail was studied. It has been noted that in breeding quail farms, the collection period for hatching eggs can be as long as 2-3 weeks. Storage time has a negative effect on incubation time, embryo development, egg hatchability and hatchability of young chicks, which consequently reduces the economic efficiency of the poultry farm. The study was carried out on the eggs of the Pharaoh and Texas White quail breeds. It was found that storage of quail eggs for more than 7 days reduces the hatchability of eggs by 8.3-38.2% and the hatchability of young quail eggs by 15.7-41.4%. Reduced fertilization of eggs correlated with the loss of egg weight during storage (r = 0.974-0.995, p < 0.05). Extending the shelf life of quail eggs to 14-21 days increased the average incubation hour of the Pharaoh breed by 6.3-12.1 hours, and the Texas white breed by 2.5-9.7 hours, had a significant effect during the embryogenesis period on the live weight of day-old quails of both breeds, utilization of yolk sac nutrients and development of the heart, liver and gizzard (η2 = 0.541-0.902, p <0.05-0.01). Hatchery eggs of the meat quail breeds Pharaoh and Texan White should be stored for no more than 7 days before incubation. The results of this study can be used in breeding, industrial and farm quail farms for planning sampling times, the number of eggs laid for incubation and places for planting day-old chicks, the number of future layers, the amount of feed needed; in the educational process of agrarian educational institutions.

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Impacts of various storage periods on egg quality, hatchability, post-hatching performance, and economic benefit analysis of two breeds of quail

et al. 2019

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Effect of Egg Storage Temperature and Storage Period Pre-incubation on Hatchability of Eggs in Three Varieties of Japanese Quail

Cited by 5 publications

References 4 publications

Genetic Selection for Body Weight in Japanese Quail (Coturnix coturnix japonica) Under Different Nutritional Environments

Genetic Selection for Body Weight in Japanese Quail (Coturnix coturnix japonica) Under Different Nutritional Environments

Features of embryonic development of meat quails

Impacts of various storage periods on egg quality, hatchability, post-hatching performance, and economic benefit analysis of two breeds of quail

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