Research Article
Semen quality variations in successively graded up sahiwal crossbred breeding bulls
Author(s): Faruk Hossain*, Golam Sorowar, Sharmin Akter, Mahbubul Hoque and Quazi M. Emdadul Huque
The study was conducted to find out the variation of semen quality among three successive graded up (F1, F2 and F3) Sahiwal × local breeding bulls for Artificial Insemination (AI) purposes. Total of 468 ejaculates were collected from 9 breeding bulls throughout the experimental year 2019. The recorded data were summarized using Microsoft Excel 2010 and statistically analyzed using GraphPad Prism 5 software. Out of 468 ejaculates 385 (82.26%) were found to be creamy in color followed by 64 (13.68%) and 19 (4.06%) as yellowish and watery, respectively. Level of up-gradation had significant (P<0.05) effect on ejaculate volume, consistency, mass activity, sperm concentration and initial and post motility. The highest (5.356 ± 0.10 ml) and the lowest (4.726 ± 0.09 ml) volume of semen were found in third (F3) and first (F1) crossing, respectively (p<0.05). The mass.. View More»
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