Asian-Australasian Journal of Bioscience and Biotechnology <p><a href="">Asian-Australasian Journal of Bioscience and Biotechnology</a> is an open access, peer-reviewed, international journal. This journal publishes high-quality original scientific papers and short communications. Review articles of current interest and high standard may be considered.</p> <p style="text-align: justify;">AAJBB is now accepting online submissions through <a href="">BanglaJOL’s online journal management system</a>. Authors should register by clicking on the “Register” link at the top of the page. Click the options for the roles of Author and Reviewer (if you are willing to be a reviewer in the journal). If you have already registered, log in using your username and password. To submit a paper, click the “New Submission” button to start the online procedure.</p> <p><strong>Abstracting &amp; Indexing: </strong>BanglaJOL; Chemical Abstracts Service (CAS); Crossref; Google Scholar; JournalSeek</p> <p><strong>Membership: </strong>Committee on Publication Ethics (COPE)</p> Ebu Press Ltd en-US Asian-Australasian Journal of Bioscience and Biotechnology 2414-1283 Feeding calf starter: growth performance of crossbred dairy calves <p>Calf starter is a special feed preparation that is fed to calves to ensure smooth weaning of calves. The study was conducted to evaluate the growth performance of crossbred dairy calves (Holstein-Friesian crossbred, HFX and Sahiwal crossbred, ShX) feeding a readily fermentable calf starter diet. The duration of the study was 17 weeks of which the first week was for the adjustment period. Ten healthy crossbred heifer calves of average 40 days old were selected for this purpose and they were divided into two groups according to their genetic materials (5 HFX and 5 ShX) in a completely randomized design. The calves were fed initially 0.25kg/day/calf of starter feed which was gradually increased up to 1 kg/day/calf. In addition to calf starter, a predetermined amount of whole milk (2 kg/day/calf) and <em>ad libitum</em> amount of green grass were also supplied to the calves. During the experimental period, growth parameters viz. body weight gain, body length gain, wither height gain, and hip height gain was measured weekly. After the whole study period, no significant difference (<em>P</em>&gt;0.05) was found in case of the average weekly body weight gain and all the body measurements. The results suggest that calves fed a balanced calf starter can grow identically overcoming any breed variations. However, to provide a clearer idea about the effect of calf starter on different crossbred dairy calves broad-scale research should be conducted on an advanced level including more crossbreds or pure breeds.</p> <p>Asian Australas. J. Biosci. Biotechnol. 2024, 9(1), 4-9</p> Mohammad Shohel Rana Siddiki Md Mehedi Hasan Khandakar Md Abunaser Rezaul Mahmud Nahid Md Sadakatul Bari Md Abid Hasan Sarker Mohammad Rashidul Haque Md Sumon Hossain Md Harun-ur-Rashid Copyright (c) 2024 Mohammad Shohel Rana Siddiki, Md Mehedi Hasan Khandakar, Md Abunaser, Rezaul Mahmud Nahid, Md Sadakatul Bari, Md Abid Hasan Sarker, Mohammad Rashidul Haque, Md Sumon Hossain, Md Harun-ur-Rashid 2024-04-03 2024-04-03 9 1 4 9 10.3329/aajbb.v9i1.70351 Embracing diversity in bioscience and biotechnology as a path towards innovation and progress <p>Abstract not available</p> Mustafa Atasever Copyright (c) 2024 Mustafa Atasever 2024-02-14 2024-02-14 9 1 1 3 10.3329/aajbb.v9i1.71499