عبدالله علاء موسي عبد العال
مدرس مساعد
Metagenomic analysis reveals rumen microbiome enrichment and functional genes adjustment in carbohydrate metabolism induced by different sorting behavior in mid-lactation dairy cows.
Animal Microbiome • 2025
معلومات البحث
المؤلفون
Abdallah Alaa Mousa, Han Zhang, Hongwei Duan, Jiyou Zhang & Shengyong Mao
الكلمات المفتاحية
Feed sorting, Microbiome, Rumen fermentation, Digestibility, KEGG modules, Dairy cow
المجلة العلمية
Animal Microbiome
الناشر
BMC, Springer Nature
المجلد
7
العدد
Not Available
الصفحات
Not Available
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
Background
This study aimed to investigate differences in the structure and function of the rumen microbiome and its associated changes in rumen fermentation patterns and apparent nutrient digestibility in dairy cattle with different sorting behavior. Twenty-four Holstein cows in mid-lactation were initially enrolled in the experiment. All cows were fed and milked three times daily throughout the entire 28-day experimental period, comprising a 7-day pre-trial and a 21-day main trial. On days 1, 7, 14, and 21 of the main trial, feed sorting behavior was measured, and feed and feces samples were collected to determine apparent nutrient digestibility. Rumen content samples were collected on day 21 to measure pH, volatile fatty acids (VFA), and rumen microbiome structure and function. Based on feed sorting behavior, twelve cows were selected and divided into two groups: six cows that were severely sorted for fine particles-severely rejected long particles (SES; n = 6) and six cows that were slightly sorted for fine particles-slightly rejected long particles (SLS; n = 6).
Results
Comparative analysis revealed significant differences between the groups. The SES group exhibited lower rumen pH values and higher concentrations of total VFA (TVFA) and acetate (P
This study aimed to investigate differences in the structure and function of the rumen microbiome and its associated changes in rumen fermentation patterns and apparent nutrient digestibility in dairy cattle with different sorting behavior. Twenty-four Holstein cows in mid-lactation were initially enrolled in the experiment. All cows were fed and milked three times daily throughout the entire 28-day experimental period, comprising a 7-day pre-trial and a 21-day main trial. On days 1, 7, 14, and 21 of the main trial, feed sorting behavior was measured, and feed and feces samples were collected to determine apparent nutrient digestibility. Rumen content samples were collected on day 21 to measure pH, volatile fatty acids (VFA), and rumen microbiome structure and function. Based on feed sorting behavior, twelve cows were selected and divided into two groups: six cows that were severely sorted for fine particles-severely rejected long particles (SES; n = 6) and six cows that were slightly sorted for fine particles-slightly rejected long particles (SLS; n = 6).
Results
Comparative analysis revealed significant differences between the groups. The SES group exhibited lower rumen pH values and higher concentrations of total VFA (TVFA) and acetate (P