Articles

The Effect of Substituting Concentrate with Different Levels of Gliricidia sepium Leaves in a Complete Feed on Nutrient Content, Crude Fiber Fractions, Digestibility, and In Vitro Fermentation Products

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The objective of this study was to evaluate the effect of substituting concentrate with different levels of Gliricidia (Gamal) leaves in a complete feed on nutrient content, fiber fractions, digestibility, and fermentation products through in vitro analysis, as well as to determine the optimal level of Gliricidia leaf inclusion for producing high-quality complete feed. The method used in this study was a field experimental method for feed preparation, employing a Completely Randomized Design (CRD) to analyze nutrient content, crude fiber fraction components, and in vitro observation variables with four treatments and four replications. The highest NDF and ADF contents were observed in the control diet (P0), at 41.49% and 25.21%, respectively, while the lowest values were found in the P3 treatment, at 26.08% and 21.60%. Based on the analysis of variance, the dry matter digestibility (DMD) and organic matter digestibility (OMD) showed significant differences (P<0.01), with the P3 treatment having the highest values of 66.34% and 71.43%, respectively. Gas production from the 2nd to the 48th hour showed significant differences (P<0.01). The treatment diets showed a significant effect (P<0.01) on DMD and OMD, with the highest values in P3 (75.88% and 82.79%). Ammonia (NH₃) concentration measurements also showed significant differences (P<0.01). The results of microbial protein synthesis measurement after 48 hours of incubation showed a P-value > 0.05, with the highest value observed in treatment P3 at 44.024 g N/kg OMTR.

Effect of Feeding Corn Stover Silage with FML Additive on Feed Digestibility in Female Sheep

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This study aimed to assess how female fat-tailed sheep respond to diets containing fresh corn stover and corn stover silage enhanced with Fermented Mother Liquor (FML) additives. The experiment involved 15 sheep with an average weight of 18.5 ± 1.55 kg, using a randomized group design (RAK) comprising three dietary treatments and five groups classified by body weight. The dietary treatments were: 100% fresh corn stover, a 50:50 mix of fresh corn stover and corn stover silage, and 100% corn stover silage. Data analysis was performed using ANOVA, and significant results were further examined with Duncan’s Multiple Range Test (DMRT). The findings indicated that none of the treatments had a significant impact on the digestibility of Dry Matter (DMD), Organic Matter (OMD), or Crude Protein (CPD). It was concluded that the diet containing an equal mix of fresh and silage corn stover yielded the most favorable outcomes, although overall digestibility did not differ significantly across treatments. Consequently, corn stover silage with FML additives may serve as a practical alternative to fresh corn stover.

Utilization of Nutrition and Performance of Local Male Goats Given Concentrate Containing Fermented Cow Rumen Content Waste

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The aim of the research was to determine the effect of feeding concentrates containing fermented cow rumen waste on the consumption and digestibility of dry matter, organic matter, nitrogen, NDF and ADF of local male goats. This research was conducted for 5 months using 20 local male goats aged 8-10 months with an average body weight of 11.71 kg and CV 12%. This experimental research used a completely randomized design with 4 treatments and 5 replications. The treatment is as follows P0: Kume grass 70% + concentrate 30% (without fermented cow rumen contents); P10: kume grass 70% + concentrate 30% (concentrate contains fermented cow rumen contents); P20: kume grass 70% + concentrate 30% (concentrate contains 20% contents of fermented cow  rumen); P30: kume grass 70% + concentrate 30% (concentrate contains 30% contents of fermented cow rumen). The results of the variance analysis showed that the treatment had no significant effect of p>0.05 on the consumption and digestibility of dry matter, organic matter, nitrogen, NDF and ADF in local male goats. The conclusion of this research is that concentrate supplementation containing fermented cow rumen waste up to a level of 30% gives relatively the same effect between each treatment on the consumption and digestibility of dry matter, organic matter, nitrogen, NDF and ADF of local male goats.

Evaluation of Dry Matter, Organic Matter and Crude Protein Digestibility in New Zealand White Rabbits with Different Sludge Percentages

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This study aims to determine the effect of the addition of sludge with different percentages in the ration of New Zealand White rabbits on the digestibility of dry matter, organic matter and crude protein produced. sludge used comes from dairy cow feces which are then dried and ground before finally added to the ration. The research design used a group randomized design with five treatments and two groups. The groups used were rabbit body weight groups, namely small and large groups, while the treatments used included P0 (control), P1 (basal feed + 5% sludge), P2 (basal feed + 10% sludge), P3 (basal feed + 15% sludge) and P4 (basal feed + 20% sludge). This study was conducted for 7 weeks, of which the first week was the adaptation stage and the next 6 weeks was maintenance. Collection of feces to measure digestibility was carried out in the fifth week. The data obtained were analyzed using Analysis of Variance (ANOVA) followed by Duncan’s Multiple Range Test (DMRT) if there were significant differences. The results showed a significant difference between treatments on dry matter digestibility, organic matter digestibility and crude protein digestibility. Based on the results obtained, it is concluded that the best percentage that can increase digestibility is P1 or the addition of sludge as much as 5% in the ration.