Scienceline Publication Repository: No conditions. Results ordered -Date Deposited. 2024-03-28T12:37:03ZEPrintshttp://eprints.science-line.com/images/Scienceline.pnghttp://eprints.science-line.com/2022-05-27T17:34:18Z2022-05-27T17:34:18Zhttp://eprints.science-line.com/id/eprint/104This item is in the repository with the URL: http://eprints.science-line.com/id/eprint/1042022-05-27T17:34:18ZComparison of three lines of Japanese quails revealed a remarkable role of plumage color in the productivity performance determinationThe study was conducted to compare body weight, egg, and carcass characteristics, as well as several biochemical parameters amongst three lines of plumage color of quails, including, black, white, and brown (n= 200 each). Body weight was analyzed on a weekly basis throughout the study period (third– 13th week of age). Eggs were collected for seven consecutive weeks of sexual maturity (seventh – 13th week of age). In addition to egg quality measurements, 16 serum biochemical parameters were also determined. The brown line had exerted significantly higher values of body weight in most analyzed weeks of sexual maturity. It had given higher values of albumen height and shell thickness, as well as carcass dressing than other lines. Simultaneously, a significantly high number of eggs in the white line were observed in the most analyzed weeks. Besides, it had given higher values in terms of shell and yolk weights, as well as several carcass characteristics, such as the heart, thigh, breast, and back. The biochemical analyses had shown no significant differences amongst the analyzed populations with exception of a higher concentration of amylase in the brown line. In conclusion, our study revealed the presence of a clear superiority of the brown and white lines in terms of the meat and egg productivity, respectively. Therefore, we recommend breeders to raise brown and white lines for a better production of meat and eggs, respectively, whereas the black line has shown the least productive characteristics than other two lines throughout the study period.F. R. Al-KafajyM. B. S. Al-Shuhaibmohammed79@agre.uoqasim.edu.iqG. S. Al-JashamiT. M. Al-Thuwaini2022-05-23T19:17:14Z2023-01-23T19:28:05Zhttp://eprints.science-line.com/id/eprint/365This item is in the repository with the URL: http://eprints.science-line.com/id/eprint/3652022-05-23T19:17:14ZThe effects of grass-based versus grain-based feeding of ruminants on the human hygienic status, a reviewRuminant meat quality is one of the important factors contributing to the recent spreading of several diseases, such as obesity, cancer, and cardiovascular problems, which have increased predominately. Feeding regiment plays an important role in the determination of the composition of fatty acids and meat quality in ruminants. This review aims to highlight the main factors that lie behind the variability of ruminant meat quality and its effect on human being’s health. The reduction in grass-feeding decreases saliva levels in the ruminants, which has several consequences on the rumen, including a reduction in pH level, along with a reduction in the microorganism activities and conjugated linoleic acid levels. In adipose tissues, the expression of the stearoyl-CoA desaturases gene is negatively affected by the decreased conjugated linoleic acid levels in the rumen, which leads to a decreased transformation of saturated fatty acids to monounsaturated fatty acids. Therefore, the lower monounsaturated fatty acids and the parallel increase in the proportion of saturated fatty acids in the consumed meat can be associated with some human diseases. Thus, the present study provided a molecular explanation for the superiority of grass-based feeding in ruminants raised at pasture in term of production of meat with a healthier quality for consumers than those raised on grains.T. M. Al-ThuwainiM. B. S. Al-Shuhaibmohammed79@agre.uoqasim.edu.iq