scholarly journals The Effect of Vitamin E and Vitamin C on the Performance of Japanese Quails (Coturnix Coturnix Japonica) Reared under Heat Stress during Growth and Egg Production Period

2006 ◽  
Vol 20 (2) ◽  
pp. 252-256 ◽  
Author(s):  
A. Ipek ◽  
O. Canbolat ◽  
A. Karabulut
2021 ◽  
Vol 9 (5) ◽  
pp. 913-916
Author(s):  
Khurshaid Anwar ◽  
◽  
Nakash Smark ◽  
Sartaj Khan ◽  
Kalim Ullah ◽  
...  

This study aimed to evaluate the effects of heat stress on quail hematological parameters two published papers on quails in 2013 were studied, analyzed and compared. Broiler Japanese quails (Coturnix coturnix japonica) were exposed to high ambient temperature (340C, 8hr/d, 0900-1700hr) in both papers. An increase in values of red blood cells count, white blood cells count, lymphocytes, heterophils and lymphocytes (H/L) ratio, Monocytes, packed cell volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration were recorded while a lower values of heterophils, basophils, eosinophils, mean corpuscular volume and hemoglobin concentration than normal were recorded in groups exposed to heat stress (340C) on day 42 in Japanese quails (Coturnix coturnix japonica). Hemoglobin concentration was least affected. The obtained results indicated that, rearing quail birds under high environmental conditions during the fattening period has a great adverse effect on blood parameters. To help maintain Japanese quail as an essential animal model further heat stress related research on modern ways is needed.


2018 ◽  
Vol 33 (1) ◽  
pp. 1 ◽  
Author(s):  
Adi Ratriyanto

This study investigated the egg production pattern at the onset of lay until peak production in Japanese quails (Coturnix coturnix japonica) fed diet supplemented with betaine and methionine. Three hundred laying quails were randomly allocated to three groups of supplementations with 5 replicates of 20 quails. The three groups of treatments included basal diet (Control) or basal diet supplemented with 1.2 g betaine and 1.2 g methionine per kg diet. During onset of lay until 50% egg production (6 to 9 weeks of age), all groups were fed a basal diet, while the supplements were applied after 9 weeks. The egg production data were analyzed with analysis of variance and followed by Duncan’s test for significant results. During week 6 to 9, all groups of quails generated similar egg production since they received the basal diet. On the later phase, supplementation of betaine and methionine enhanced average weekly egg production (P<0.05) starting from week 10 compared with those without supplementation. The egg production curves indicated that production rapidly reached 60% soon after the onset of lay. Then, egg production rose sharply and reached the peaks of more than 80%, indicating good egg production patterns. Supplementation of betaine and methionine enhanced the average overall and peak production (P<0.01) without affecting the age at peak production. In addition, there were positive correlations between average of overall production and peak production of all treatments. It can be concluded that supplementation of betaine and methionine enhanced egg production in quails.


2017 ◽  
Vol 69 (3) ◽  
pp. 651-658
Author(s):  
M. Albuquerque ◽  
R. Guedes ◽  
P. Dornbusch ◽  
L. Laskoski ◽  
P. Mangini ◽  
...  

ABSTRACT Often, in pet birds, any stimulus to lay eggs is unwanted in order to reduce reproductive diseases and disorders. The objectives of this study were: to determine the time necessary to promote ovary involution after an eight hour photoperiod using laying Japanese quails (Coturnix coturnix japonica); to connect the ovarian radiographic measurements with egg production; and to compare these measurements with direct ovary data obtained at necropsy. Birds were separated into three groups: 12h/24d (control group - 12h photoperiod for 24 days), 8h/24d and 8h/36d (8h photoperiod for 24 and 36 days). After euthanasia, all cadavers were x-rayed to measure ovary length and height. Birds were necropsied to measure ovarian length and weight. Results: radiographic ovary length demonstrated strong and positive correlation (r=0.96) with direct ovary length of all three groups; laying quails showed higher ovary height (p=0.025) and length (p=0.009) than non-laying quails; eight hours of artificial light per day promotes ovary length (p=0.025) and weight (p=0.009) reduction. Conclusions: radiography can estimate the ovary measure and indicate posture; an eight hour photoperiod of 24 days is not enough to promote ovarian regression, while the use of reduced photoperiod for 36 days promotes significant ovary involution.


2020 ◽  
Vol 6 (6) ◽  
pp. 94-100
Author(s):  
Serge-Olivier Konan KOUASSI ◽  
◽  
Yves Bénarèce Tra DJE BI ◽  
Soualio KAMAGATE ◽  
Mathieu Nahounou BLEYERE ◽  
...  

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.


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