| Title: | "Effect of Brazilian spinach (Alternanthera sissoo) pellet supplementation and dietary ratios on rumen characteristics, microorganisms, methane production, milk yield, and milk composition in dairy cows" |
| Author(s): | Sommai S; Wanapat M; Prachumchai R; Cherdthong A; |
| Address: | "Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand" |
| Journal Title: | J Anim Physiol Anim Nutr (Berl) |
| ISSN/ISBN: | 1439-0396 (Electronic) 0931-2439 (Linking) |
| Abstract: | "The aim of the previous research was to evaluate the effects of Brazilian spinach pellet (BSP) supplementation and dietary ratios on rumen characteristics, methane estimation, and milk production in dairy cows. Four crossbred Thai dairy cattle, with Holstein Friesian (HF) cows with a body weight of 442 +/- 50 kg were assessed in a 2 x 2 factorial in a 4 x 4 Latin square design to obtain diets; factor A was the roughage (R) to concentrate (C) ratio at 40:60 and 30:70, and factor B was level of BSP supplantation at 2% and 6% of dry matter (basis) intake (DMI). R:C ratio and supplementation of BSP had no interaction effect on DMI and nutrient digestibility. On DM, organic matter (OM), crude protein (CP), and acid detergent fiber (ADF) intake, the R:C ratio increased (p < 0.05). The digestibility of OM improved (p < 0.05) when cows were fed a R:C ratio of 30:70. On pH, ammonia-nitrogen, protozoal population, and blood urea-nitrogen, there were no interactions between the R:C ratio and BSP supplementation. Increasing the BSP supplementation to 6% (p < 0.01) decreased the protozoal population. The R:C ratio of 30:70 increased total volatile fatty acid (VFA) and propionate (C3) concentrations while decreasing the acetate (C2) to C3 ratio and methane (CH(4) ) estimation (p < 0.01). The average concentration of total VFA has increased by 114.46 mmol/L for 6% of BSP supplementation. Increased BSP supplementation increased the C3 concentration while decreasing the C2:C3 ratio and CH(4) emissions (p < 0.05). The R:C ratio and BSP supplementation had no interaction effect on milk yield, 3.5% fat-corrected milk (FCM), or milk composition. The R:C ratio of 30:70 increased milk yield (p < 0.05) to the highest level of 12.18 kg/day. In conclusion, the diet containing a R:C ratio of 30:70 increased feed intake, milk yield, BUN, total VFA, and C3 concentration, and decreased the C2:C3 ratio and CH(4) emission. BSP supplementation at 6% could increase TVFA and C3 concentrations while decreasing the protozoal population and CH(4) estimation" |
| Keywords: | Alternanthera sissoo dairy cow flavonoid methane estimation phytochemical compound rumen characteristics ruminant production volatile fatty acid; |
| Notes: | "PublisherSommai, Sukruthai Wanapat, Metha Prachumchai, Rittikeard Cherdthong, Anusorn eng TRF-IRN5702PHDW06/Thailand and Thailand Research Fund (TRF) through the Thailand Science Research and Innovation (TSRI)/ Research Program on Research and Development of Winged Bean Root Utilization as Ruminant Feed, Increase Production Efficiency and Meat Quality of Native Beef and Buffalo Research Group, and Research and Graduate Studies, Khon Kaen University (KKU)/ Germany 2023/05/02 J Anim Physiol Anim Nutr (Berl). 2023 May 2. doi: 10.1111/jpn.13827" |
