Effects of feeding Aspergillus oryzae fermentation product to transition Holstein cows on performance and health

Abstract

Two experiments examined the effects of Aspergillus oryzae fermentation product (AO; Amaferm®; BioZyme Inc., St. Joseph, MO, USA) on productive variables in transition dairy cows. In experiment 1, 33 Holstein cows (22 multiparous and 11 primiparous) were enrolled from −21 to 60 days in milk (DIM). Cows were individually fed either a control total mixed ration (TMR) diet consisting of primarily alfalfa hay and steam-flaked corn [62:38 and 59:41, forage:concentrate (F:C) for prepartum and postpartum phases, respectively] or the control diet along with 15 g d−1 of AO. In experiment 2, 455 multiparous Holstein cows were enrolled from −21 to 121 DIM. Cows were group-fed either a control TMR diet (n = 228) consisting primarily of corn silage and rolled corn (44:56, F:C) or the control diet (n = 227) with 15 g d−1 of AO. In experiment 1, cows fed AO had increased (P < 0.05) milk production compared with controls (37.7 vs. 34.6 kg d−1). Milk composition, dry matter intake, body weight (BW), and BW loss both prepartum and postpartum did not differ (P > 0.10) between treatments. Cows fed AO tended to have decreased plasma nonesterified fatty acids levels (14%, P < 0.10), but plasma glucose concentration did not differ (P = 0.89). In experiment 2, cows fed AO had decreased milk yield (43.0 vs. 43.8; P < 0.05), and increased milk fat content (3.50% vs. 3.38%; P < 0.01) but similar quantities of 3.5% fat-corrected milk (42.5 vs. 42.7 kg d−1; P > 0.10). Results suggest that AO has the potential to improve aspects of milk production efficiency, but the percentage and types of forage utilized may influence the response.

Implication and challenges of direct-fed microbial supplementation to improve ruminant production and health

“…Aspergillus oryzae and Aspergillus niger are two fungal species used in animal diets commonly in the form of culture, culture extract or crude enzyme extracts [ 52 , 77 – 79 ]. The previous reviews all considered them as DFMs because these crude extract products contain live cells [ 5 , 29 , 80 ].…”

Aspergillus oryzae and Aspergillus niger Co-Cultivation Extract Affects In Vitro Degradation, Fermentation Characteristics, and Bacterial Composition in a Diet-Specific Manner

“…However, if higher forage-based diets are to be realized, then increasing the rate and extent of fiber digestion is critical to meet the energetic requirements of copious milk production. Diet fungal products can enhance rumen fermentation and alter ruminal digestive processes; thus, they may improve animal health and energy status in early lactation [ 1 ]. Aspergillus oryzae and Aspergillus niger fungi have been chosen for production in food science in a low-cost medium [ 2 , 3 , 4 , 5 ] and both have a long history concerning strain improvement to optimize enzyme production [ 6 , 7 , 8 , 9 ].…”

Probiotics in dairy farming: A holistic approach to animal nutrition

“…Sucu et al, 2018 [136] C. rugosa, C. pararugosa Fernandes et al, 2019 [57] Saccharomyces boulardii Santos et al, 2021 [124]…”