• Title, Summary, Keyword: Japanese Quail

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EFFECT OF DIETARY ASPIRIN ON LAYING PERFORMANCES AND EGG YOLK FATTY ACID COMPOSITION IN JAPANESE QUAIL

  • Murai, A.;Furuse, M.;Okumura, J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.7 no.2
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    • pp.217-221
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    • 1994
  • In avian species, addition of aspirin to the diet was shown to improve the egg production and to elevate the proportion of essential fatty acid contents in several body tissues. This study was conducted to investigate the effect of dietary aspirin on the accumulation of essential fatty acids in egg yolk. Laying Japanese quail at 170 days of age were fed practical diets supplemented with graded levels (0, 0.4 and 0.8%) of aspirin for 2 weeks. There were no significant differences in final body weight and liver weight. Food intake and egg weight on the 0.8% aspirin diet were significantly lower than those on the 0 or 0.4% aspirin diet. In the liver and egg yolk lipids, the 16:0 in birds fed the 0.8% aspirin diet was significantly higher than that in birds fed the aspirin-free diet. However, the proportion of n-6 poly-unsaturated fatty acids was not affected by feeding aspirin diets.

The Effects of Dietary Protein Level on Laying Performance and Egg Quality in Japanese Quail (메추리에 있어서 산란 사료 내 단백질 수준이 산란 성적과 난질에 미치는 영향)

  • Oh, Sung-Taek;Kim, Je-Hun;Park, Seung-Jae;Yun, Jeong-Geun;Zheng, Lan;An, Byoung-Ki;Kang, Chang-Won
    • Korean Journal of Poultry Science
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    • v.39 no.3
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    • pp.207-213
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    • 2012
  • This experiment was conducted to investigate the effects of various levels of dietary protein on laying performance and egg quality in laying quail. A total of six hundred forty 7-week-old laying type Japanese quail were divided into four groups with eight replicates per group (20 birds per replicate) and fed four diets differing in dietary protein levels (18, 20, 22 and 24%) with isocaloric corn-soybean meal-based diets for 8 weeks. The results showed no significant differences in feed intake and egg weight among the groups. With an increase in dietary protein levels, the egg production and daily egg mass were linearly increased (P<0.05). However, there were no significant differences in eggshell thickness and Haugh unit. The dietary protein did not affect the blood levels of GOT, GPT, BUN, albumin, and creatinine. The ammonia concentration of intestinal digesta was not affected by the dietary treatments. The contents of hepatic triacylglycerol in the groups fed diets containing 20% protein or more were significantly reduced as compared with that of 18% CP group (P<0.05). Overall, this study showed that relatively high levels of dietary CP are needed to sustain the higher egg production and daily egg mass and to avoid the hepatic triacylglycerol accumulation in Japanese quail.

EFFECT OF EGG WEIGHT AND PRE-INCUBATION HOLDING PERIODS ON HATCHABILITY OF JAPANESE QUAIL EGGS IN DIFFERENT SEASONS

  • Salah Uddin, M.;Paul, D.C.;Huque, Q.M.E.
    • Asian-Australasian Journal of Animal Sciences
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    • v.7 no.4
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    • pp.499-503
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    • 1994
  • One thousand and eighty eggs of Japanese quail (Coturnix coturnix Japonica) were set into the incubator maintaining 36 treatment groups (3 egg weight groups ${\times}3$ seasons ${\times}4$ preincubation holding periods) to evaluate their hatchability performances. Holding periods had significant (p<0.05) effect on hatchability and the seasons showed significant (p<0.05) effect on chick weight. All the parameters (except fertility) were significantly (p<0.01) influenced by the egg weight. None of the parameters maintained regular trend with egg weight and pre-incubation holding periods. Significant interactions were not observed on any of the parameters (except fertility) studied. The egg weight maintained significant (p<0.05) negative correlation with fertility and positive correlation with chick weight. Eggs of medium weight (9.10 to 10.00 cm) could be hatched satisfactorily between 4 and 7 days of pre-incubation holding periods in any season of the year.

Karyological Study of Japanese Quail (Coturnix coturnix japonica) (일본산 메추리(Coturnix coturnix japonica)의 핵형연구)

  • ;;N. S. Fechheimerlr
    • Korean Journal of Poultry Science
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    • v.17 no.4
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    • pp.269-274
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    • 1990
  • Chromosome complements of Japanese quail (Coturnix coturnix japonica) were studied using several tissues which involving testis, leukocytes and embryos. The diploid count was estimated to be 2n=78. Analyzing the metaphase of secondary meiosis in spermatocytes, the haploid count estimated to be n=39. Morphometric analysis were studied by the centromeric index and relative length of 8 macro-chromosomes and Z, W chromosomes The differences of morphological feature were not significant among tissues. Exceptionally the chromosome 4 shelved a considerable variety in the presence of it's short arm.

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Effects of Egg Storage Material and Storage Period on Hatchability in Japanese Quail

  • Lacin, E.;Coban, O.;Sabuncuoglu, N.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.8
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    • pp.1183-1188
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    • 2008
  • The present study aimed to determine the effects of different storage materials and storage period on some hatchability traits of Japanese quail (Coturnix coturnix japonica) eggs. A total of 32 male and 102 female quail (twelve weeks of ages) were housed in multiple-bird cages. Eggs laid were divided into three groups with respect to the period of storage (I = 1st, 2nd and 3rd days, II = 6th, 7th and 8th days, III = 12th, 13th and 14th days) prior to incubation. A total of 816 eggs was stored in 3 different storage environments during each storage period (B = no use of any storage material, P = use of perlite, H = use of hay) and kept in environmental conditions, where the temperature was $21^{\circ}C$ and relative humidity was 75%, prior to incubation. Statistical analyses were performed after the exclusion of values pertaining to non-fertile eggs (190 eggs) from the data set. The fertility rate of the eggs in the experiment was 76.7%. In the present study, the influence of storage material and different storage periods on egg weight loss were found to be statistically significant (p<0.01). Upon the comparison of hatchability of fertile eggs values, the influence of storage material was determined to be significant (p<0.05), and the influence of storage period was demonstrated to be significant (p<0.01). The storage materials used were determined not to have any influence on early and late embryonic death rates. Perlite was concluded to be safe for use in the storage of hatching eggs. The extension of the storage period (more than 8 days) resulted in decreased hatchability values of fertile eggs in each group.