The effect of preincubation during egg storage on hatchability in Japanese quail

Kód výsledku v IS VaVaI

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RIV/62156489:43210/17:43911733

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of preincubation during egg storage on hatchability in Japanese quail

Popis výsledku v původním jazyce

Long storage of hatching eggs has a negative effect on hatching in Japanese quail. Hatchability is significantly reduced when the eggs are stored longer than 10 days. The hypothesis was that preincubation used in broiler chickens is a method that could reduce the negative impact of long-term storage in the Japanese quail also. Four experiments were done, using one long and three short preincubations. In total one thousand two hundred and ninety eggs of Japanese quail were used. These eggs were divided into preincubated eggs and eggs without preincubation. The preincubation was long (8h) and short; 3x1 h (including preincubation on the day of egg collection and subsequently every 5th day), 2x1h (every 5th day of storage) and 3x 1h (every 5th day during the 21 day storage). The preincubation time was measured from when 35 oC was reached on the surface of the eggshell (37.5 oC inside the incubator). The eggs were stored at 12.0 oC for 14 or 21 days. Embryonal mortality was determined after hatching. Preincubation 8h had significant negative effect (P&lt;0.05) on hatchability at storage of 14 days; the hatchability was 76.2% in the non-heated eggs and 56.5% in the preincubated eggs. The preincubation for 3x1 h and 2x1 h during the 14 day storage period had positive effect on hatchability, which was improved by 7.1% (preincubation for 3x1h) and by 4.8 % (preincubation 2x1h), but these positive effects were not significant (P&gt;0.05). In the last experiment, preincubation was applied 3 times for 1h during the 21 days of storage, and the positive effect of the pre-incubation, which increased the hatching by 0.9%, was observed. This positive effect was also not significant (P&gt;0.05). Long preincubation (8h) had negative effect on hatchability, however short preincubation (1h) regardless length of storage had positive effect on hatchability in Japanese quails (P&lt;0.05).

Název v anglickém jazyce

The effect of preincubation during egg storage on hatchability in Japanese quail

Popis výsledku anglicky

Long storage of hatching eggs has a negative effect on hatching in Japanese quail. Hatchability is significantly reduced when the eggs are stored longer than 10 days. The hypothesis was that preincubation used in broiler chickens is a method that could reduce the negative impact of long-term storage in the Japanese quail also. Four experiments were done, using one long and three short preincubations. In total one thousand two hundred and ninety eggs of Japanese quail were used. These eggs were divided into preincubated eggs and eggs without preincubation. The preincubation was long (8h) and short; 3x1 h (including preincubation on the day of egg collection and subsequently every 5th day), 2x1h (every 5th day of storage) and 3x 1h (every 5th day during the 21 day storage). The preincubation time was measured from when 35 oC was reached on the surface of the eggshell (37.5 oC inside the incubator). The eggs were stored at 12.0 oC for 14 or 21 days. Embryonal mortality was determined after hatching. Preincubation 8h had significant negative effect (P&lt;0.05) on hatchability at storage of 14 days; the hatchability was 76.2% in the non-heated eggs and 56.5% in the preincubated eggs. The preincubation for 3x1 h and 2x1 h during the 14 day storage period had positive effect on hatchability, which was improved by 7.1% (preincubation for 3x1h) and by 4.8 % (preincubation 2x1h), but these positive effects were not significant (P&gt;0.05). In the last experiment, preincubation was applied 3 times for 1h during the 21 days of storage, and the positive effect of the pre-incubation, which increased the hatching by 0.9%, was observed. This positive effect was also not significant (P&gt;0.05). Long preincubation (8h) had negative effect on hatchability, however short preincubation (1h) regardless length of storage had positive effect on hatchability in Japanese quails (P&lt;0.05).

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů