Replacement Corn Silage by Orange Waste Silage in Barki Ram Lambs Rations

Abstract

he present work was conducted to study the effect of replacement corn silage (CS) by orange waste silage (OR) improved the performance of Barki lambs using one of the following rations: R1: 50% concentrate feed mixture (CFM) + 40% corn silage (CS) + 10% rice straw (RS) (control). R2: 50% CFM + 20% CS + 20% orange waste silage (OS) + 10% RS and R3: 50% CFM + 40% OS + 10% RS. Two experimental trials were conducted: Results showed the silages had good smell and were free from any signs of molds in all groups. Digestibility trial was conducted using nine mature local Barki breed rams were divided in three groups (3 animals each) weighting with average body weight 57 kg ± 1.5 kg and 3 years old. R3 recorded (P<0.05) the highest digestibility coefficients for all nutrients and nutritive value than others and the results showed a significant improvement (P<0.05) in digestibility coefficients of NDF, ADF and cellulose in R3 than others. Results showed insignificant differences (P>0.05) among the three tested groups in all blood parameters. Eighteen Barki lambs with average body weight 21.00 ± 0.20 kg/head were used. Lambs were divided into three groups (6 animals each) and fed the three respective rations with the same regime of feeding the experimental lasted for month. R3 recorded the highest value of average daily gain compared with R2 and R1. Also, R3 recorded the best value of feed conversion (6.24) followed by the R2 (6.52) than the control (7.03). It was concluded that corn silage by orange waste silage to rations of growing Barki lambs could improve their performance especially replacement of 100% corn silage by orange waste silage (R3).

Effect of Replacing Maize Silage With Orange by-Product Silage on Rumen Fermentation and Performance of Barki Ewes

“…The replacement of maize silage by orange byproducts silage at 50% or 100% in G2 and G3 had significantly affected all nutrient digestibility coefficients compared with maize-silage based diet(G1). These results were in agreement with Mahrous et al (2019); Shdaifat et al (2013); and Gholizadeh and Naserian. ( 2010) who reported that DM, OM, CP and CF digestibility were increased when dried citrus pulp substitute for starchy feeds.…”

“…In this respect, Omer and Tawila (2009) concluded that replacements of corn grains by citrus by-production in goat's ration improved feed efficiency and decreased daily feeding cost, and consequently improved relative economic efficiency. Similarly, Mahrous et al (2019) found that all rations containing citrus byproduct silage recorded the best feed conversion values compared with corn silage in growing Barki lambs.…”

Impact of Substituting Corn Silage by Orange Pulp Silage on The Productive Performance and Economic Efficiency of Baladi Crossbred Calves

“…The values of CF and EE in OPS was in agreement with [20] who showed that their contents in OPS were 17.96 and 3.73%, in the same order. Our findings for DM, CP and CF were noticed to be lower than those observed by [19] who recorded their values to be 38.90, 8.72, and 28.56%, respectively. The NDF and ADF values for CS were higher than those for OPS (41.3 and 29.45% vs. 34.6 and 22.89%, respectively).…”

“…Hemicellulose content in OPS was similar to that of CS (11.71 vs. 11.85%). The current result was near to that noted by [19] who recorded10.15-10.8% hemicellulose in OPS. On contrary, the cellulose content of CS was higher than its content in OPS (24.62 vs. 17.83%).…”

“…Otherwise, replacement of corn silage by orange by products silage at 50% or 100% had positively affected all nutrient digestion coefficients of Barki Ewes [17]. In parallel, [18,19] recorded that OM, DM, CP and CF digestibility were increased when citrus pulp silage was included in beef feeding. In the same trend, rations contained orange pulp silage (OPS) recorded high nutritive values, which may be related to the high nutrients' digestibility [20,21,22].…”