Effect of Feeding Dried Orange Pulp to Lactating Dairy Cows on Nutrients Digestibility, Blood Constituents, Plasma Antioxidant Biomarker, and Pathogenic Fecal Bacteria

Partial Replacement of Yellow Corn Grains by Dried Orange Pulp in Lactating Buffalo Rations During Summer Season: Effects on Animal Performance and Profitability

“…Hence, REE (%)/ h/ day was 210.5 and 147.7% in R2 and R3, respectively, compared to R1. These ndings agreed with(Miron et al, 2002) who reported that partial substitution of maize grains with DCP (10% or 20%) in the rations of high producing lactating cow's improved feed e ciency Allam et al (2020). found that REE were 116.43; 120.65 and 126.08% for the replacement of YCG by DOP at 25, 50 and 75% levels, respectively, in dairy cow rations.Physical environmental factorsFigure1illustrates the ambient temperature, relative humidity, and THI measured during the trial period (3 months in the summer season).…”

“…Citrus by-products including dried orange pulp (DOP), citrus peel liquor, citrus silage and citrus molasses, are good alternative feeds for ruminants (Ensminger et al, 1990;Bakr, 2020;Allam et al, 2020) and can be exploited, as an energy concentration, to meet thier nutritional requirements (Bampidis and Robinson, 2006). Moreover, citrus by-product (e.g., pulp) can supply bioactive compounds which have antioxidant effect, such as sugar, bers, phenolic compounds, organic acids, and vitamin E (Santos et al, 2014;Luciano et al, 2017;Mahato et al, 2018).…”

“…Moreover, substituting cereals with DOP, at 40 and 80% levels, increased vitamin E and phenolic compounds in milk of dairy goat and positively modi ed growth performance of suckling kids (Guzmán et al, 2020). The DOP 75%-substitute of YCG in lactating cows feeding showed no harmful effect on cow's health (Allam et al, 2020). Replacement of wheat bran by a mixture of dried tomato pomace and DOP (1:1) in lactating buffalo's diet enhanced milk production (Abdel Gawad et al, 2020).…”

“…Also, Gilaverte et al (2011) and Allam et al (2011) replacedBy increasing DOP replacement level, values of CP digestibility were signi cantly decreased compared to R1 (p 0.05). On the contrary, Ben-Ghedalia et al(1989) andAllam et al, (2020), found an increase in CP digestibility with increasing the DOP level in animal ration, and this may be attributed to DOP which could enhance the N supply to the intestine via creating favorable conditions in the rumen.…”

Citrus species: Modern functional food and nutraceutical-based product ingredient

“…Recently, the effect of dried orange pulp on antioxidants level in the plasma was evaluated (Allam Sabbah et al, 2020). Results demonstrated that the value of total antioxidant capacity, as a biomarker of oxidative stress, was gradually increased (ranged from 0.420 to 0.433 mm/L) by increasing the level of dried orange pulp supplementation (25, 50, and 75%).…”