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Online Journal of Veterinary Research©
(Including Medical and Laboratory Research)
Volume 25 (12):851-868, 2021.
Effect of cane molasses on performance and rumen absorption in dry cows
Amir Hossein Asgari Safdar1*
1Young Researchers and Elite Club, Baft Branch, Islamic Azad University, Baft, Iran.
Asgari Safdar AH., Effect of cane molasses on performance and rumen absorption in dry cows, Onl J Vet Res., 25 (12):851-868, 2021. Author describes effect of cane molasses supplement in dry cow diets before and after partus on performance and rumen digestibility. Cows were fed basal diet with or without molasses 60 days before calving date in far-off and close-up periods. During lactation all cows were fed common lactation diet. For performance data, 26 primiparous and 28 multiparous Holstein cows were fed 3.2% molasses of dry matter (DM) during the far-off and 3.3% at close-up periods. For effects of molasses on rumen papillae and digestibility, multiparous Holstein cows were cannulated at 60-d dry period. Dry matter intake, valerate, propionate, VFA was greater but acetate lower in cows given molasses at close-up. Prepartum rumen papillae were longer (P = 0.001) in controls and width greater (P < 0.02) at close-up period. Papillae length, width, and surface were greater (P < 0.0001) postpartum. Results suggested that molasses given during dry period boosted DM intake during periparturient period and subsequent milk production. Molasses had no effect on rumen absorption in non-lactating cows.
Key Words: dry cow, cane molasses, rumen, performance