Aspects quantitatifs du peuplement des gonades par les cellules germinates chez l'embryon de Caille (Coturnix coturnix japonica)

Development ◽  
1976 ◽  
Vol 35 (3) ◽  
pp. 637-648
Author(s):  
Par Eliane Didier ◽  
Noël Fargeix
Keyword(s):  
Germ Cells ◽  
Primordial Germ Cells ◽  
Mean Value ◽  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Quail Embryo ◽  
Coturnix Coturnix ◽  
The Mean ◽  
Regular Increase ◽  
The Right

Quantitative aspects of the colonization of the gonads by germ cells in the quail embryo (Coturnix coturnix japonica) A quantitative analysis made on quail embryos coming from 13 isolated parent couples reveals some significative variations of a genetic origin, between some of the off spring studied: the differences observed concern both the quantitative importance of the colonization of gonads by germ cells and the asymmetrical distribution of PGCs (primordial germ cells) between the two genital ridges. The chronological study of the colonization in the quail shows, as in both the duck and the chick, two periods of rapid and regular increase of the number of gonadic PGC, at stages from 13 to 18 and from 24 to 30 of Hamburger & Hamilton. The distribution of germ cells between the two genital ridges is, at the beginning of the colonization, not very asymmetrical. Between stages 18 and 24 the asymmetry increases and remains stable so that the mean value of D % (percentage of the number of PGC contained in the right gonad) from that moment on is equal to 29–34 %. This value is specific for the quail embryo.

Apoptosis of germ cells in the normal testis of the Japanese quail (Coturnix coturnix japonica)

2020 ◽  
Vol 67 ◽  
pp. 101450
Author(s):  
Musa Zakariah ◽  
Mohammed I.A. Ibrahim ◽  
Reneilwe A. Molele ◽  
Lyndy J. McGaw
Keyword(s):  
Japanese Quail ◽  
Germ Cells ◽  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix ◽  
Normal Testis

scholarly journals Nt-methyl histidine excretion by poultry: not all species excrete Nt-methyl histidine quantitatively

1983 ◽  
Vol 50 (3) ◽  
pp. 691-700 ◽  
Author(s):  
C. Linda Saunderson ◽  
S. Leslie
Keyword(s):  
Muscle Protein ◽  
Coturnix Japonica ◽  
Broiler Chicks ◽  
Coturnix Coturnix Japonica ◽  
Protein Breakdown ◽  
Total Recovery ◽  
Coturnix Coturnix ◽  
Muscle Protein Breakdown ◽  
Turkey Poults ◽  
The Mean

1. The rate of elimination of administered Nτ-[14CH3]methyl histidine was used to assess the validity of Nτ-methyl histidine excretion as an index of muscle protein breakdown in poultry.2. Broiler chicks (2–3 and 4–5 weeks old), laying hens, adult quail (Coturnix coturnix japonica), adult cockerels and turkey poults (2–4 weeks old) were tested.3. All except the turkey poults showed quantitative recoveries of Nτ-[14CH3]methyl histidine within 1 week.4. Turkeys showed a different pattern of Nτ-[14CH3]methyl histidine output; the mean total recovery after 14 d was less than 50% of the injected dose. The majority of the label remaining after this time was found in breast muscle.5. All birds tested excreted Nτ-methyl histidine unchanged, although a small amount sometimes appeared as another metabolite.6. No significant oxidation of Nτ-[14CH3]methyl histidine by broiler chicks, turkey poults or adult quail was found.7. The results show that excretion of Nτ-methyl histidine is a useful measure of muscle protein breakdown in the domestic fowl and quail but not in turkeys.

scholarly journals Genetic variation of the japanese quail (Coturnix Coturnix Japonica) based on biochemical polymorphism

2017 ◽  
Vol 33 (3) ◽  
pp. 321-332 ◽  
Author(s):  
Adebukola Akintan ◽  
Osamede Osaiyuwu ◽  
Mabel Akinyemi
Keyword(s):  
Genetic Distance ◽  
Japanese Quail ◽  
Paper Electrophoresis ◽  
Coturnix Japonica ◽  
Blood Protein ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix ◽  
Japanese Quails ◽  
Expected Heterozygosity ◽  
The Mean

The study aimed at characterizing the Japanese quail using biochemical markers. Blood protein polymorphism of one hundred and sixty-six (166) Japanese quails of both sexes comprising of 83 each of mottled brown and white quails were analysed using cellulose acetate paper electrophoresis. Six loci which includes hemoglobin (Hb), transferrin (Tf), albumin (Alb), carbonic anhydrase (CA), alkaline phosphatase (Alp) and esterase-1 (Es-1) were tested. All the loci tested were polymorphic with each locus having two co-dominant alleles controlling three genotypes. Allele B was predominant at Hb, Tf and Es-1 locus with frequencies 0.90, 0.55, and 0.77, respectively while Allele A was predominant at Alb and Alp locus with frequencies 0.83 and 0.58 respectively. The Allele A had generally lower frequencies than B at the CA loci having values of 0.43 - Brown, 0.38 - White and 0.40 - overall. The mean observed heterozygosity (Ho) was 0.48 with brown and white quails having Ho values of 0.47 and 0.49 respectively, and the expected heterozygosity was observed to be higher in white quails (0.39) than in the mottled brown (0.31). The genetic distance (0.0534) between white and brown quails in this study showed little genetic differentiation between the brown and the white quails. Dendogram generated from the genetic distance values indicated that the two strains had common origin.

scholarly journals Reproductive toxicity of neem seeds (Azadirachta indica) in male quail (Coturnix coturnix japonica)

2019 ◽  
Vol 49 (11) ◽  
Author(s):  
Rayr Cezar de Souza Góis ◽  
Leandro Alves da Silva ◽  
Hélio Noberto de Araújo Júnior ◽  
Jardel Bezerra da Silva ◽  
Tânia Vasconcelos Cavalcante ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Negative Impact ◽  
Sperm Quality ◽  
Sperm Concentration ◽  
Coturnix Japonica ◽  
Adaptation Period ◽  
Coturnix Coturnix Japonica ◽  
Mean Values ◽  
Coturnix Coturnix ◽  
The Mean

ABSTRACT: Considering that neem (Azadirachta indica A. Juss.) causes deleterious effects on fertility, the objective was to evaluate the effect of feeding quail (Coturnix coturnix japonica Linnaeus, 1758) of 90 days old with neem seeds on seminal quality, biometric parameters, and testicular morphometrics, as an experimental model. After the 30 day adaptation period to the experimental conditions, birds were randomly distributed in five treatments of neem seeds incorporated into feed, with 10 replicates: T1 (0%), T2 (5%), T3 (10%), T4 (20%) and T5 (40%). After 60 days of receiving experimental rations, their semen was collected to evaluate the sperm quality, the birds were euthanized, and testes were submitted to biometric, histological, and histomorphometric evaluation. The data were evaluated by analysis of variance and later by Tukey test with a significance level of 5%. The mean values of testicle weight, length, and width significantly decreased in T4 and T5, due degeneration of germinal epithelial cells. In these treatments, it occurred a significant increase (P>0.05) in the average values of the tunica albuginea thickness and a significant reduction in the values of the seminiferous tubule diameter and the height of the germinal epithelium. In addition, the mean values of seminal volume, sperm concentration, sperm motility, vigor, and sperm viability were significantly reduced. Thus, the use of neem in bird feeding, as well as the use for therapeutic purposes, is questionable, considering its negative impact on reproduction.

Efeito da Inclusão do Resíduo de Goiaba sobre o Rendimento de Carcaça de Codornas Japonesas (Coturnix coturnix japonica)

2010 ◽  
Vol 12 (1) ◽  
pp. 46-49
Author(s):  
A.L. Marinho ◽  
S.R.V. Lana ◽  
G.R.Q. Lana ◽  
R.C. Lira ◽  
L.C.L. Camelo ◽  
...  
Keyword(s):  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix

Effects of Food Protein Levels on Haematological Parameters of Growing Japanese Quails (Coturnix Coturnix Japonica Temminck & Schlegel, 1849)

2020 ◽  
Vol 6 (6) ◽  
pp. 94-100
Author(s):  
Serge-Olivier Konan KOUASSI ◽  
◽  
Yves Bénarèce Tra DJE BI ◽  
Soualio KAMAGATE ◽  
Mathieu Nahounou BLEYERE ◽  
...  
Keyword(s):  
Crude Protein ◽  
Hematological Parameters ◽  
Coturnix Japonica ◽  
Food Protein ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix ◽  
Protein Levels ◽  
Dietary Crude Protein ◽  
Japanese Quails ◽  
The Impact

The study aims to determine the impact of dietary crude protein levels on the hematological parameters of Japanese quail from growth to ovipositor. To this end, five feeds with different crude protein levels (18, 20, 22, 24 and 26%) were supplied to 700 quails of three weeks of age. These were subdivided into six batches, including three batches of females and three batches of males for each feed group. After subjecting the quails to diets containing the different protein levels, four samples were taken at the fourth, fifth, sixth and seventh week of age. The samples taken were analyzed using an SYSMEX XN 350 automated hematological analyzer. The results of this investigation indicated that non-significant differences (P > 0.05) were observed in hematological parameters in both female and male quails. This study showed that dietary crude protein levels had no impact on the health status of Japanese quails. Keywords: Japanese quails, Crude protein, Hematological parameters.

scholarly journals Prevalence and Characteristics of Multidrug-Resistant Livestock-Associated Methicillin-Resistant Staphylococcus aureus (LA-MRSA) CC398 Isolated from Quails (Coturnix Coturnix Japonica) Slaughtered for Human Consumption

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2038
Author(s):  
Vanessa Silva ◽  
Madalena Vieira-Pinto ◽  
Cândido Saraiva ◽  
Vera Manageiro ◽  
Lígia Reis ◽  
...  
Keyword(s):  
Methicillin Resistant Staphylococcus Aureus ◽  
Clonal Complex ◽  
Sccmec Type ◽  
Multidrug Resistant ◽  
Coturnix Japonica ◽  
Human Consumption ◽  
Coturnix Coturnix Japonica ◽  
Genetic Lineages ◽  
Coturnix Coturnix ◽  
Type V

Livestock-associated MRSA (LA-MRSA) is a zoonotic pathogen that has been reported in several animals, and it is often associated with clonal complex (CC) 398. We aimed to isolate MRSA from quails and to characterize their antimicrobial resistance and genetic lineages. One hundred swab samples were recovered from quails at the slaughterhouse. The swabs were inoculated onto CHROMagar™ MRSA agar plates for MRSA isolation. The presence of antimicrobial-resistant genes and virulence factors was investigated by PCR. All strains were typed by MLST, SCCmec-, spa- and agr-typing. From the 100 samples, 29 MRSA were isolated. All strains were resistant to penicillin, cefoxitin, ciprofloxacin, erythromycin and clindamycin and carried the blaZ, mecA, ermB and ermC genes. All strains, except one, showed resistance to tetracycline and harbored the tetM, tetK and tetL genes in different combinations. Twenty strains belonged to ST398 and SCCmec type V, and nine strains belonged to the new ST6831. Twenty-eight out of twenty-nine strains were ascribed to t011 and one to t108. As far as we know, this is the first report of MRSA from quails slaughtered for human consumption. Most strains belonged to ST398-t011, which is the most common LA-MRSA clone found in livestock in Europe.

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