Partial replacement of corn silage with whole-plant soybean and black oat silages for dairy cows.

Journal of Dairy Science
Tássia B P SilvaFrancisco P Rennó

Abstract

This study aimed to evaluate the effects of partially replacing corn silage (CS) with whole-plant soybean silage (SS) or black oat silage (OS) on nutrient intake and digestibility, in vitro neutral detergent fiber degradability of silages, feeding behavior, rumen fermentation, and performance of dairy cows. Twenty-four lactating Holstein cows (6 of which were rumen-cannulated) with 32.5 ± 4.92 kg/d milk yield, 150 ± 84.8 days in milk, and 644 ± 79.0 kg of body weight were used in a 3 × 3 Latin square design to evaluate the following treatments: (1) corn silage diet (CSD): using corn silage as the only forage source in the diet [48% dietary dry matter (DM)]; (2) whole-plant soybean silage diet (SSD): SS replacing 16% of corn silage from CSD; and (3) black oat silage diet (OSD): OS replacing 16% of corn silage from CSD. The inclusion of OS and SS decreased intakes of DM, organic matter, and crude protein. Corn silage had the greatest in vivo effective degradability of DM, and SS had the least effective degradability of neutral detergent fiber. The OSD treatment decreased milk and protein yields, whereas SSD increased rumen ammonia nitrogen concentration compared with the other diets. Cows fed OSD exhibited a greater preference fo...Continue Reading

References

Nov 1, 1992·Journal of Animal Science·J B RussellC J Sniffen
Aug 1, 1991·Journal of Dairy Science·J Van MilgenL L Berger
Sep 14, 2012·Tropical Animal Health and Production·Paulo SalgadoDidier Richard
Jan 8, 2014·Journal of Dairy Science·T F Bernardes, A C do Rêgo
Apr 25, 2016·Tropical Animal Health and Production·Maria Danaee Celis-AlvarezCarlos Manuel Arriaga-Jordán
May 28, 2016·BMC Veterinary Research·Ye LinQingzhang Li

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