Role of Body Weight on Reproductive and Physiological Traits in Japanese Quail Layers (Coturnix japonica)

2011 ◽  
Vol 10 (8) ◽  
pp. 640-643 ◽  
Author(s):  
Kashmiri L. Arora ◽  
Oreta Samples
Keyword(s):  
Body Weight ◽  
Japanese Quail ◽  
Coturnix Japonica ◽  
Physiological Traits

scholarly journals Aflatoxin effect on the oocysts morphometry and contribution on the morphology of Eimeria bateri Bhatia, Pandey and Pande, 1965 from the japanese quail Coturnix japonica in Brazil

2008 ◽  
Vol 17 (4) ◽  
pp. 235-238 ◽  
Author(s):  
Bruno P. Berto ◽  
Sergian V. Cardozo ◽  
Walter L. Teixeira Filho ◽  
Ana Maria R. Ferreira ◽  
Carlos Wilson G. Lopes
Keyword(s):  
Body Weight ◽  
Linear Regression ◽  
Japanese Quail ◽  
Single Species ◽  
Refractile Body ◽  
Coturnix Japonica ◽  
Sporocyst Residuum ◽  
Japanese Quails ◽  
Polar Granules

The purpose of this study was to characterize Eimeria bateri oocysts and to evaluate the aflatoxin effect in the morphometry of sporulated oocysts in Japanese quails infected naturally. Of a total of 50 quails naturally infected by E. bateri were randomly divided into two groups with 25 birds each. In one of them, quails were orally administered with aflatoxin in dose of 0.04 mg/kg body weight previously. Both experimental groups shed E. bateri oocysts. These oocysts were subspherical to ellipsoidal, 25.1 x 18.9 Lim, with bi-layered wall. Micropyle and residuum were absent, but one or more polar granules were present. Sporocysts elongate ovoid, 12.5 x 7.4 μm. Stieda and substieda bodies were present. Sporocyst residuum was dispersed and sporozoites presented a nucleus and a refractile body. Histograms confirmed the presence of a single species, E. bateri. Linear regression proved that E. bateri oocysts are polymorphic, due, basically, to shape of these oocysts. The comparative morphometry between two experimental groups demonstrated that the aflatoxin influenced significantly in the E. bateri oocysts.

The role of the male cloacal gland in reproductive success in Japanese quail (Coturnix japonica)

2012 ◽  
Vol 24 (2) ◽  
pp. 405 ◽  
Author(s):  
R. P. Singh ◽  
K. V. H. Sastry ◽  
N. K. Pandey ◽  
K. B. Singh ◽  
I. A. Malecki ◽  
...  
Keyword(s):  
Japanese Quail ◽  
Normal Saline ◽  
Artificial Insemination ◽  
Coturnix Japonica ◽  
Fertile Period ◽  
Sperm Transport ◽  
Cloacal Gland ◽  
White Foam ◽  
Perivitelline Membrane

The adult male Japanese quail has a well developed cloacal gland that produces meringue-like white foam. The physiological significance of the cloacal gland and its foam is still unclear. Therefore, we conducted two experiments to establish the functional role of the cloacal gland and its foam in natural mating and oviducal sperm transport. In the first experiment, artificial insemination of equal numbers of spermatozoa diluted in foam extract and normal saline once in a week were used to determine the role of foam in sperm transport in the female oviduct. After artificial insemination, eggs were collected to measure fertility, the duration of the fertile period, sperm holes and attached spermatozoa in the perivitelline membrane. Higher (P < 0.05) fertility and greater duration of the fertile period were observed when semen was inseminated along with foam extract compared with normal saline. Further, the sperm holes and trapped spermatozoa in the perivitelline membrane were also higher (P < 0.05) in the presence of foam extract. In the second experiment, two males with bigger and smaller cloacal gland areas were allowed to mate with a female. The mating attempts of males with larger cloacal gland were more successful (P < 0.05) than males with smaller cloacal glands. Our results indicated that cloacal foam improves sperm transport in the female oviduct and that males with larger cloacal gland areas are preferred during mating.

scholarly journals KORELASI GENETIK DAN FENOTIPIK BOBOT BADAN UMUR EMPAT MINGGU DENGAN BOBOT TELUR PADA PUYUH JEPANG (Coturnix coturnix japonica) Genotipic and Fenotipic Correlation Among Four-Week Body Weight and Eggs Weight Of Japanese Quail (Coturnix coturnix japonica)

2018 ◽  
Vol 1 (2) ◽  
pp. 15
Author(s):  
Dini Widianingrum
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Japanese Quail ◽  
Animal Husbandry ◽  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix ◽  
High Category ◽  
Selection Of ◽  
Estimated Heritability

Abstrak Penelitian mengenai korelasi genetik dan fenotipik bobot badan umur empat minggu dengan bobot telur telah dilaksanakan di Program Studi Peternakan Fakultas Pertanian Universitas Majalengka. Tujuan penelitian yaitu untuk mempelajari korelasi genetik dan fenotipik bobot badan umur empat minggu dengan bobot telur. Percobaan dilakukan pada 369 ekor puyuh betina yang merupakan keturunan pertama dari pejantan 60 ekor dan betina 120 ekor yang ditetaskan dalam 3 periode penetasan. Metode penelitian menggunakan hubungan saudara tiri sebapak (paternal halfsib correlatian) dengan pola (nested unequal subclass number). Parameter genetik yang diamati yaitu heritabilitas, korelasi genetik dan korelasi fenotipik bobot badan umur empat minggu bobot telur. Hasil penelitian menunjukan bahwa nilai heritabilitas bobot badan umur empat minggu dan bobot telur yaitu 0,563+0,226 dan 0,584+0,281 termasuk kategori tinggi. Nilai korelasi genetik dan fenotipik bobot badan umur empat minggu dengan bobot telur yaitu 0,824+0,187 dan 0,693+0,245. Hal demikian menunjukan bahwa seleksi untuk bobot telur dapat dilakukan pada bobot badan umur empat minggu Kata kunci : heritabilitas, korelasi genetik dan fenotipik, bobot badan dan bobot telur puyuh Abstract The research was conducted at animal husbandry studi program faculty of agricultural Majalengka University. The object of research were study about four-week body weight and eggs weight heritability’s, and than genetic and fenotipic correlation between four-week body weight and eggs weight. Material used were 369 female japanese quail from 60 sire and 120 dam from third periode of hacthery. The method which applied was experimental. The data were analyzed statistically using unequal subclass number design. The result of research estimated heritability obtained using faternal halfsib correlation were four-week body weight 0,563+0,226 was high category and eggs weight 0,584+0,281was high category. Genetic and fenotipic correlation between four-week body weight and eggs weight 0,824+0,187 dan 0,693+0,245. This result shows that selection of one trait will give advantage respon to another trait. Key words : heritability, genetic and fenotipic correlation, body weight dan eggs weight of quail

Feathering rate impact on growth and slaughter traits of Japanese quail

2018 ◽  
Vol 156 (7) ◽  
pp. 942-948 ◽  
Author(s):  
B. Y. Mahmoud ◽  
A. S. Abdel Hafez ◽  
A. M. Emam ◽  
A. M. Abdelmoniem ◽  
S. A. ElSafty
Keyword(s):  
Body Weight ◽  
Japanese Quail ◽  
Stepwise Regression ◽  
Tail Length ◽  
Carcass Weight ◽  
Coturnix Japonica ◽  
Class Differences ◽  
Different Ages ◽  
Old Japanese ◽  
Significant Class

AbstractA total of 1180 1-day-old Japanese quail (Coturnix japonica) chicks were used to investigate the effect of feathering rates on growth and slaughter traits. Feathering rates were classified based on the results of stepwise regression using numbers and lengths of both primaries and secondaries and tail length at 7 and 10 days of age as predictors. At 7 and 10 days old, number of primary feathers had phenotypically positive low correlations (rps) with body weight (BW), whereas number of secondaries had positive medium rps with BW at different ages. Lengths of primary, secondary and tail feathers had highly positive rps with BW traits at different ages. Results of stepwise multiple regressions indicated that BW at 14, 21 and 28 days of age can be predicted using lengths of secondary and tail feathers at 10 days old, number of secondaries at 7 days old and length of secondaries at 7 days old, respectively. Body weight at 35 days of age can be predicted using number of primaries,lengths of secondaries and tail at 10 days of age and number of secondaries at 7 days of age. Higher BWs were obtained in the fast-feathering class from 21 up to 35 days of age than in other groups, whereas the slow-feathering class had the lowest BW. Significant class differences were found for carcass weight, feather weight and dressing% favouring the fast- over the slow-feathering class. Therefore, early feathering rates improved BW at later ages and slaughter traits in Japanese quail.

Different expression of calpain in skeletal muscle of Japanese quail (Coturnix coturnix japonica) lines selected for body weight

1993 ◽  
Vol 31 (11-12) ◽  
pp. 485-495 ◽  
Author(s):  
Kotaro Kawabe ◽  
Yoshizane Maeda ◽  
Tatsuzo Oka ◽  
Shin Okamoto ◽  
Tsutomu Hashiguchi
Keyword(s):  
Skeletal Muscle ◽  
Body Weight ◽  
Japanese Quail ◽  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix
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