Effect of Broussonetia papyrifera L. (paper mulberry) silage on dry matter intake, milk composition, antioxidant capacity and milk fatty acid profile in dairy cows

Abstract

ObjectiveThis study was carried out to investigate the possible application of Broussonetia papyrifera (B. papyrifera) silage as a functional feeding stuff in dairy cattle.MethodsSeventy-two Holstein cows were divided into four groups randomly and allocated to 6 pens with 3 individuals in each group and fed the original total mixed ratio (TMR) in the dairy farm or the new TMR with 5%, 10%, and 15% B. papyrifera silage, separately. Feed intake were recorded, milk and blood samples were collected, and milk composition, blood metabolites and milk fatty acids composition were measure at the end of the experiment.ResultsDry matter intake of cows decreased when they fed on diet with B. papyrifera, but no differences were observed in body condition score, milk yield, milk protein and lactose, feed efficiency and serum metabolites between groups. Both 10% or 15% of B. papyrifera silage in the diet significantly increased the immunoglobulin A (IgA) and IgG in serum, 15% of B. papyrifera silage increased the content of serum catalase, superoxide dismutase, total antioxidant capacity, and decreased the content of 8-hydroxy-2′-deoxyguanosine. Furthermore, 10% or 15% of B. papyrifera silage resulted in a significant decrease in the milk somatic cell count, and increased the polyunsaturated fatty acids content in the milk.ConclusionThe diets with 10% to 15% of B. papyrifera silage might enhance the immune and antioxidant function of dairy cows and increase the polyunstaturated fatty acid concentration in the milk.

Effect of Broussonetia papyrifera L. silage on blood biochemical parameters, growth performance, meat amino acids and fatty acids compositions in beef cattle

“…It is reported that catalytic foliage supplementation to low-quality roughages may enhance nutrient utilization in sheep [17], and foliage supplementation increased total feed intake of goats [18] with which our result of DMI was consistent. However, our results were different from the results that B. papyrifera silage decreased the DMI in dairy cattle [5], which may have been due to the replacement of low quality forage with high quality forage in diets for beef cattle, not like the low quality forage used in the diets for dairy cattle decreasing the feed intake, high quality forage could increase the DMI in beef cattle.…”

“…In the present study, PUFA were significantly higher in 10% and 15% groups than that in control group or 5% group (p<0.05), and it might due to the antimicrobial activities in the diet supplemented with B. papyrifera silage, as it is reported that prenylated flavonoids isolated from B. papyrifera have antimicrobial activity [36,37] which might affect the rumen microorganism by reducing the biohydrogenation of fatty acids in the rumen, and also dietary antioxidant activity might increase PUFA content in meat [38,39]. We found the similar result in milk of dairy cattle [5]. C22:6n3 (docosahexaenoic acid, DHA) of meat is higher in 5% group, 10% group and 15% group than that in control group (p<0.05).…”

“…Meanwhile, the supplements of plant antioxidant extracts or raw antioxidant plant materials in animal diets is a common practice to improve animal performance, health and products [3]. Broussonetia papyrifera L. (B. papyrifera, paper mulberry), a deciduous tree or shrub in the family Moraceae, natively grows in eastern Asia, are mainly used in papermaking [4], feed [5] and medicine [6] industries. There are about 300,000 hectares of B. papyrifera in China, widely distributed in basins of Yellow River, Yangtze River, Pearl River and Mingjiang River.…”

“…It is reported that certain plants fed to ruminants could reduce the ruminal biohydrogenation [7]. It was found that B. papyrifera silage could increase the poly-unsaturated fatty acids (PUFA) concentration in the milk [5]. Besides that, oxidative stress could be very dangerous as no clinical symptoms are obvious, but some metabolites and enzymes in antioxidant defense systems such as vitamins, glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and catalase (CAT) could prevent oxidative damage, and dietary antioxidants play important roles in preventing damage by free radicals in the system [8].…”

Effect of Broussonetia papyrifera Silage on the Serum Indicators, Hindgut Parameters and Fecal Bacterial Community of Holstein Heifers

“…In this study, the MDA content of T25, T50, and T75 are lower than T0, indicating that BPS can enhance the resistance of lipid peroxidation in experimental heifers. However, another study reported that replacing WSC with 5%, 10%, and 15% BPS can improve the antioxidant indicators (T-AOC, CAT, GSH-Px, SOD) remarkably (Si et al 2018). The antioxidant capacity in the present study was not improved as the increasing of BPS content, which might due to the substitution ratio of BPS is not in a suitable range.…”