Waste Feed Research Articles

Prediction of dry matter intake in growing Black Bengal goats using artificial neural networks.

Dry matter intake (DMI) determination is essential for effective management of meat goats, especially in optimizing feed utilization and production efficiency. Unfortunately, farmers often face challenges in accurately predicting DMI which leads to wastage of feed and an increase in the cost of production. This investigation aimedto predict DMI in Black Bengal goats by using body weight (BW), body condition score (BCS), average daily gain (ADG), and metabolic body weight (MBW) by applying an artificial neural network (ANN) model. A total of 144 observations were collected from 18 goats over a 4-month period for each input (BW, ADG, MBW and BCS) and output (DMI) variable. These input variables were taken fortnightly and correlated with DMI. The presence of a significant positive correlation between DMI with BW (r = 0.968, p < 0.01), BCS (r = 0.687, p < 0.01), ADG (r = 0.608, p < 0.01), and MBW (r = 0.971, p < 0.01) indicated potential for ANN model development. ANN model with 10 hidden layer neurons trained using GDX and LOGSIG transfer function emergeds as the high-performing model for predicting DMI in Black Bengal goats, achieving the highest R2 (0.9693) and the lowest MSE (0.0013) among the configurations considered. Comparison between the three models revealed that the DMI was estimated more accurately by the ANN model than by linear and second-order non-linear models. ANN may therefore be used to predict DMI with high accuracy and reliability in place of otherregression methods.

Brewery waste as a sustainable protein source for the banded cricket (Gryllodes sigillatus)

Abstract Crickets, like other edible insects, can convert organic by-products of the food and agricultural industries into high-value protein. Waste products high in protein like brewer’s spent grain and brewer’s spent yeast are particularly attractive replacements for unsustainable protein sources in cricket feed like fishmeal or soy. Such replacement will only be advantageous, however, if feeding on these waste products does not impact, or only minimally impacts, cricket survival, growth, and body composition. In this study, a farmed cricket species, Gryllodes sigillatus, was reared in isolation on experimental diets in which fishmeal was wholly or partially replaced with either brewer’s spent grain or brewer’s spent yeast. Cricket survival, development and macromolecular composition were not different across diets. However, wholly replacing fishmeal with brewer’s spent yeast or brewer’s spent grain reduced cricket adult body mass by approximately 16%. To extend these findings toward a farm environment, a second cohort of crickets were reared communally on diets in which fishmeal, and fishmeal and soy (a secondary protein source), were replaced by brewer’s spent grain. We found that in a communal environment, crickets reared on both diets performed equally as well as the control. Therefore, brewing waste products are promising candidates for use as a primary protein source in the feed of G. sigillatus. In addition to contributing towards the goals of a circular bioeconomy through the repurposing of waste, the use of brewing waste in cricket feed may have a positive impact of the cricket farming industry as a cost-effective and sustainable alternative to traditional feed.

Broilers Litter Management: A Review of Environmental Impacts, Nutritional Value and Sustainable Utilization

The continuous demand for animal protein occasioned by increase in population has placed much pressure on researchers across the world for improved ways towards increasing animal productivity. The situation is unpalatable as efforts in meeting the needs have been met with insecurity, unregulated policy, natural disasters, unnecessary community conflicts, and problems of land grabbers most especially in developing nations. This has therefore necessitated at different fora exploration of alternative feed resources to increase animal’s productivity and arrest the ugly trernd. Broilers litter, which include poultry droppings, feed waste and also bedding materials has been identified as possible feed resource technology for the ruminant animals’ production. They have high quality nutritional value and can be manipulated and improved upon for higher animal yield. The use of the litter in ruminants business has become an increasingly popular area in ruminant animal agriculture. Although there are associated concerns for safety of meat and milk products from animals managed on such diets despite its high energy contents. Incidentally, information of its inclusion in the diets of ruminant animal agriculture has not been adequately documented. This therefore forms the basis for this work putting into consideration the consequential effects of broiler litters on animal health, its processing, sustainability, safety and its relative implication for the good of man and his environment. Keywords: Feed shortage, non-conventional feeds, poultry litter, environment

PENERAPAN MODEL PROTOTYPE UNTUK PENGEMBANGAN SISTEM INFORMASI MANAJEMEN PEMBERIAN PAKAN IKAN BERDASARKAN FOOD CONVERSION RATIO (FCR)

Efficient feed management is crucial for successful fish farming. Improper feed management leads to waste, poor water quality, fish mortality, reduced yields, and decreased operational efficiency. A primary challenge is determining appropriate feed rations based on fish growth stages. This research developed a web-based information system to aid fish farmers in efficient and accurate feed management. The system calculates feed rations using a formula based on fish biomass and incorporates feed efficiency analysis via the Food Conversion Ratio (FCR). A Prototype Model was used for system development due to its adaptability to user feedback. Results show the system automatically calculates feed rations, manages fish sampling data, analyzes feed efficiency using FCR, and generates daily reports for efficient feed management. Field trials validated the system's effectiveness, demonstrating its ability to provide information on feed efficiency and reduce feed waste.

Pendampingan Pembuatan Pakan Alternatif Pasta Apung Berbasis Potensi Lokal di Pokdakan PAKWALI, Desa Bakalan, Kecamatan Purwosari, Kabupaten Pasuruan

The aquaculture sector plays an important role in supporting food security and improving the community's economy. Aquaculture, especially in rural areas, has become one of the main pillars in providing protein sources for the community and also driving the local economy. This community service activity aims to improve the skills and independence of fish farmers in the Fish Farmers Group (PAKWALI) of Bakalan Village, Pasuruan Regency through the innovation of alternative floating paste feed based on local potential. The main problems faced by partners are the high cost of commercial feed and the lack of knowledge about making independent feed. The methods used include counseling, training, and assistance in making alternative feed. The main innovation is the development of floating paste feed that uses local raw materials such as tofu dregs and bran. The results of the activity showed an increase in the skills of partners in producing independent feed, with production cost efficiency reaching 40.3% compared to commercial feed. This alternative feed also increases the efficiency of nutrient absorption in fish and reduces feed waste. In conclusion, this program has succeeded in increasing the independence of fish farmers, reducing production costs, and encouraging more environmentally friendly and sustainable cultivation practices.

IoT Innovation and Entrepreneurship Education: Sustainable Tilapia Cultivation Optimization Strategy

Tilapia cultivation in Teratak Village, Central Lombok, faces problems in feed efficiency and limited market access. Lack of automation technology causes feed waste, while limited marketing knowledge limits farmers' competitiveness. This community service activity aims to overcome these problems through the application of Internet of Things (IoT) technology in the form of automatic feeders (smart feeders) and entrepreneurship training focused on digital marketing. The methods applied include the manufacture and installation of smart fish feeders that are controlled via an application to regulate the amount and frequency of feed. In addition, entrepreneurship training focuses on digital marketing strategies through social media and e-commerce platforms to expand market reach. The results of the activity show that smart feeders increase feed efficiency by up to 20%, reduce waste, and support more optimal fish growth. Digital marketing training helps farmers improve their online promotion skills, expand market networks, and significantly increase sales. In conclusion, the application of IoT technology and digital marketing-based entrepreneurship training has proven effective in increasing the efficiency of cultivation and market competitiveness of tilapia farmers in Teratak Village

Analysis of Earthworm (Lumbricus rubellus) Growth Due to the Addition of Fruit Waste Pulp to Feed

Earthworms are a group of animals that live in soil and have a segmented body, bilaterally symmetrical, and covered by a transparent cuticle, which protects from physical and chemical disturbances. One of the factors that influences the growth of earthworms is the availability of food substances in the media where they live. Research on the analysis of the increase in the number and total weight of earthworms (Lumbricus rubellus) due to the provision of fruit waste in feed has been carried out in 2023. This research aims to analyse the increase in the number and total weight of earthworms due to the application of fruit waste to the media where earthworms live. Research data was analysed using variance analysis. In this study, the results were obtained: (1) fruit waste pulp (papaya and banana) added to feed had a significant effect on increasing the number of earthworms, (2) fruit waste pulp added to the feed can increase the total weight of earthworms, (3) Giving 2 liters of fruit waste to the feed results in a higher number and total weight of earthworms than other levels of fruit waste pulp.

Conceptual Validation of High-Precision Fish Feeding Behavior Recognition Using Semantic Segmentation and Real-Time Temporal Variance Analysis for Aquaculture.

Aquaculture plays an important role in the global economy. However, unscientific feeding methods often lead to problems such as feed waste and water pollution. This study aims to address this issue by accurately recognizing fish feeding behaviors to provide automatic bait casting machines with scientific feeding strategies, thereby reducing farming costs. We propose a fish feeding behavior recognition method based on semantic segmentation, which overcomes the limitations of existing methods in dealing with complex backgrounds, water splash interference, fish target overlapping, and real-time performance. In this method, we first accurately segment fish targets in the images using a semantic segmentation model. Then, these segmented images are input into our proposed fish feeding behavior recognition model. By analyzing the aggregation characteristics during the feeding process, we can identify fish feeding behaviors. Experiments show that the proposed method has excellent robustness and real-time performance, and it performs well in the case of complex water background and occlusion of fish targets. We provide the aquaculture industry with an efficient and reliable method for recognizing fish feeding behavior, offering new scientific support for intelligent aquaculture and delivering powerful solutions to improve aquaculture management and production efficiency. Although the algorithm proposed in this study has shown good performance in fish feeding behavior recognition, it requires certain lighting conditions and fish density, which may affect its adaptability in different environments. Future research could explore integrating multimodal data, such as sound information, to assist in judgment, thereby enhancing the robustness of the model and promoting the development of intelligent aquaculture.

The Use of Pig Manure Fertilizer on the Growth, Production, Protein Content, and TDN of Pakchong Grass

Manure is a fertilizer that comes from a mixture of livestock waste, urine, and leftover livestock feed. Pig manure can be used as fertilizer because it contains Nitrogen, phosphorus and potassium. Solid pig manure contains quite high Nitrogen nutrients of 0.95%, Phosphorus 0.35%, and Potassium 0.40%, so that pig manure is effective as an organic fertilizer that will be beneficial for plant growth. This study aims to see the effect of the use of pig manure fertilizer on the growth, production, nutritional quality and TDN of Pakchong Grass. A Randomized Block Design (RAK) was used with five treatments, namely without the use of pig manure fertilizer (P0), Grass Plants fertilized with 5 tons/ha of pig manure fertilizer (P1), Grass Plants fertilized with 10 tons/ha of pig manure fertilizer (P2), Grass Plants fertilized with 15 tons/ha of pig manure fertilizer (P3), and Grass Plants fertilized with 20 tons/ha of pig manure fertilizer (P4). The results of this study indicate that providing pig manure fertilizer of up to 20 tons/ha can increase the growth, production, quality and TDN of Pakchong Grass.

Environmental microplastic and phthalate esters co-contamination, interrelationships, co-toxicity and mechanisms. A review.

Plastics have been pervasive in society for decades, causing extensive environmental contamination. The co-occurrence of microplastics (MPs) and phthalate esters (PAEs) in the environment has significant implications for the global population. This review focuses on the simultaneous presence of MPs and PAEs, exploring co-pollution, leaching, adsorption, correlation, and co-toxicity. Both MPs and PAEs are found in various environmental compartments, including water, sediments, aquatic organisms, pig feed, masks, gloves, and liquid waste from garbage infiltration. Factors such as time, temperature, UV light exposure, and the type of MPs can influence the leaching and adsorption of PAEs onto MPs. The correlation between MPs and PAEs allows for the use of PAEs as indicators for the presence of MPs. However, current constraints, like limited data availability and regional coverage, impede the feasibility of comprehensive tracking. Additionally, the combined effects of MPs and PAEs demonstrate synergistic toxicity, leading to adverse health effects such as reproductive toxicity, neurotoxicity, hepatotoxicity, nephrotoxicity, and other toxicities, primarily mediated by oxidative stress processes. Consequently, the findings provide valuable insights for future researchers and regulatory bodies, enabling the development of more effective strategies to address the simultaneous presence of microplastics and PAEs and mitigate their harmful impacts on human health.

Effects of dietary curcumin levels on the growth, intestinal morphology and microbiota, waste production and feed costs of golden pompano Trachinotus ovatus

This study investigated the effects of dietary curcumin levels on the growth, feed utilization, body composition, waste production, fishery resource input, feed costs, intestinal morphology and intestinal microbiota in golden pompano. A fishmeal-based diet was supplemented with different amounts of curcumin to create diets R (0 g/kg), S1 (0.5 g/kg), S2 (1 g/kg), S3 (2 g/kg), S4 (4 g/kg), S5 (8 g/kg), and S6 (10 g/kg). No statistically differences were found in feed conversion ratio, retention efficiencies of nitrogen and phosphorus, condition factor, viscerasomatic index, body proximate composition, and waste output of carbon, nitrogen and phosphorus among different treatments. Values of final body weight (FBW) and weight gain in treatments S1-S6 tended to be higher than in treatment R, and the highest values of FBW and weight gain were found in treatment S3. Higher economic conversion ratio (ECR) was found in treatments S4-S6 than that in treatment R, while no significant difference was found in ECR between treatments S1-S3 and treatment R. Treatments S3 and S6 exhibited higher intestinal villus height compared with treatment R. Treatments S2 and S3 exhibited comparable intestinal villus height, goblet cells number, and ratio of intestinal villus height to crypt depth compared with treatment R. Treatments S2 and S3 showed higher relative abundance of the genus Ralstonia and Paraclostridium, and the species of Ralstonia_insidiosa and Paraclostridium_bifermentans_ATCC_638. These results indicate that suitable dietary curcumin has beneficial effects on the growth, intestinal morphological structure, and intestinal probiotics abundance in golden pompano.

The Effects of Shrimp Waste Added to Broiler Diets on Growth Performance, Slaughter and Carcass Characteristics, Intestinal Morphology, Bone Traits, and Fatty Acids in the Meat.

Recycling animal waste is crucial for the circular economy, promoting environmental and sustainability. This study aimed to assess the impact of shrimp waste added to broiler diets on growth performance, slaughter and carcass characteristics, intestinal morphology, bone traits, and fatty acids in the meat. In the study, 315 ROSS-308 male broiler chicks were utilised as the animal subjects. The experiment consisted of five groups based on the timing and amount of shrimp (Penaeus vannamei) waste addition to their diet (Control [C], 1% added the first 11 days [1% FED], 1% added during fattening [1% DF], 2% added during the first 11 days [2% FED], 2% added during fattening [2% DF]). The differences in body weight, body weight gain, total feed intake and total feed conversion ratio, carcass parameters, relative internal organ weights, and fatty acids of thigh and breast meat among the groups were found to be statistically insignificant (p > 0.05). The addition of shrimp waste to the diet only significantly affected the VH/CD ratio in the jejunum, with the C group showing a lower ratio (p < 0.05). Adding shrimp waste to the diet only affected the seedor index of the femur among the characteristics of the leg bones, and an interaction between the period and the group was observed for this trait (p < 0.05). According to the results, up to 2% shrimp waste can be added to the diet without adversely affecting broiler performance, carcass quality, villus and bone properties, and fatty acid composition. The use of shrimp waste in feed can benefit the broiler industry and protect to environment.

Analysis of Resource Use and Production Efficiencies of Broiler Farming in Punjab

The study was conducted and examined using primary data collected from 100 broiler farms, which were applied through a probability proportion sampling method across all the regions of Punjab state. The Cobb-Douglas production function was used to determine the factors affecting broiler production and resource-use efficiency. The coefficient of day-old chicks and broiler feed were positive and significant at a 1 per cent level and affected the gross return of all three categories and overall units. The miscellaneous items were positively significant at a five per cent level only on overall broiler farms. If expenditure on items comprising miscellaneous costs increased by one per cent, it may increase the gross returns by an average of 0.074 per cent. The efficiency indicators of broiler feed showed that feed was overutilized in all categories. The overall ratio of meat-feed was 1.70, which clearly showed that for every rupee spent on feed, it could return to 1.70. The large broiler farms were more desirable value in both feed conversion ratio and meat-feed or output-input ratio. The study suggested that broiler feed was over-utilized, and there is a need to stop wastage of broiler feed.

High temperature environmental scanning electron microscopy characterization of transient phase formation during conversion of simulated nuclear waste feed to glass

In-situ High-Temperature Environmental Scanning Electron Microscopy (HT-ESEM) is used to characterize the transient phases formed during the melting of complex glass batch mixtures representing simulated nuclear waste feeds. The first phenomenon that occurs is the formation of oxyanionic salt melt, followed by the reaction of oxyanionic salts with refractory grains containing Si, Al, or Mg through surface reactions to form a molten alkali-alumino-boro-silicate phase. The onset temperatures of gas bubble formation and primary foaming are directly determined from the HT-ESEM measurements. The formation of sulfate lakes as well as the formation of high-temperature transient phases floating at the sample surface are also directly observed and identified. Convection currents are observed and their consequences on glass homogenization are discussed.

Effectiveness of Length and Weight Growth of Tenebrio molitor L. Larvae with Plastic Waste Feeding

Effectiveness of Length and Weight Growth of Tenebrio molitor L. Larvae with Plastic Waste Feeding

Productivity and economic performance of Nellore young bulls fed diets with increasing fiber content.

Adequate neutral detergent insoluble fiber (NDF) content in the total diet can improve intake efficiency, prevent rumen disorders, and enhance the health and performance of feedlot-finished beef cattle. We hypothesized that an increase in dietary fiber levels would decrease the productive performance but increase the economic performance of young bulls in confinement. Thus, it was aimed to evaluate the effect of increasing fiber levels on feed intake, wastage, and productive and economic performance of Nellore young bulls finished in confinement. We used 20 Nellore cattle, non-castrated males, 30 months old, and average body weight (BW) of 416.35 ± 2.2kg distributed in a completely randomized design, kept in individual stalls. Animals were divided into four treatments consisting of four levels of neutral detergent insoluble fiber (NDF) (25%, 30%, 35%, and 40% NDF) in total DM. Nutrient intake, feed conversion, feed waste, body weight (BW) at slaughter, total weight gain (TWG), average daily gain (ADG), hot carcass weight (HCW), and carcass yield (CR) were evaluated. In addition, economic parameters (revenue, food expenses, and gross margin) were calculated and compared. The dry matter (DMI), organic matter (OMI), crude protein (CPI), and ether extract (EEI) intakes showed quadratic behavior. The DMI maximum estimated was 28.5% NDF in the diet. The NDF and ADF intakes showed a positive linear effect and the starch intake had a negative linear effect. There was a significant positive linear effect (P < 0.05) for the variables total mixed ration (TMR) offered and daily and total RTM intake. Minimum RTM wastage was estimated with a diet containing 30% NDF. The maximum points for BW at slaughter, HCW, and ADG were 29.9%; 29.6%, and 25% NDF, respectively. The costs of concentrate and silage showed a positive linear behavior, as did the ADG costs and the carcass equivalent cost (P < 0.05). The maximum point of the revenue estimate (US$/animal) was 29.9% of NDF, 26.1% of NDF for the total expenditure on food (US$/animal), and 32.5% of NDF for the gross margin (U$/animal). In conclusion, the animals fed a 30% NDF diet showed the best performance and economics, in addition to less food waste. We recommend 25 to 32.5% of NDF in the diet to obtain maximum productive and economic performance when finishing Nellore young bulls in confinement.

Applications of H2-Enriched syngas and slag products from plastic wastes via novel plasma dual-stage-arc pyrolysis

Sustainable plastic waste management in the prevailing ‘new-normal’ post-pandemic scenario calls for calorific waste plastic up-cycling into high-end product recovery pathways. The present work employed a novel dual-stage arc plasma pyrolysis reactor to recover syngas and slag products from mixed plastics and Low-Density Polyethylene and Polyethylene Terephthalate (LDPE-PET) plastic waste feeds. Syngas product yield decreased while the solid slag yield increased with rising arc current, attaining 75% and 25% for mixed plastic waste feed and 59% and 41% for LDPE-PET wastes, respectively, at 200A arc current. The resultant syngas composition showed 83% and 77% H2 while 1.7% and 2.7% CO for mixed plastic waste-feed and LDPE-PET wastes, respectively, with no significant presence of CO2. Slag characterization studies revealed the presence of scattered pores on the slag surface, graphitic nanostructures due to scraped carbon depositions from electrode tips and the absence of aromatic groups due to complete conversion. High carbon content was observed in the slag due to the dissociation of lighter hydrocarbon and carbon dioxide on dual-arc exposure in two stages, underscoring the higher efficiency. For holistic integrated circular onsite ‘plastic waste-to-resource’ recovery-cum-application, electricity was generated from the resultant syngas and the slag was used for the manufacture of tiles in the community platform. Techno-economic evaluation of an up-scaled plasma pyrolysis facility shows the power recovery of 3.5 kWh/kg of waste plastic, with a net annual profit of $2800 and a payback period of 1.7 years. The findings of the present work suggest that the proposed integrated dual-arc plasma pyrolysis based plastic waste-to-resource recovery in circular-economy model has a viable outcome.

Isolation, characterization, and assessment of Bacillus rugosus potential as a new probiotic for aquaculture applications

Aquaculture is an important component of the world food supply and a significant source of protein. However, this industry faces numerous problems. Including poor fish feed digestion and uneconomic nutrient utilization. This can result in unsatisfactory growth rates and poor stock performance. Utilizing probiotics, which are beneficial microbes that can enhance digestive systems and general fish health, is one possible way to address these issues. This study was designed to identify and evaluate a novel strain of Bacillus as a promising probiotic. The strain of Bacillus rugosus that was examined and coded NM007 showed promising probiotic characteristics that could help fish digest and utilize their feed more efficiently, reduce feed waste, and improve their digestive systems. B. rugosus NM007 exhibited the ability to produce digestive enzymes like protease, amylase, and lipase, which are the main digestive enzymes. It showed strong auto-aggregation activity and co-aggregation activity with Aeromonas sp. and Streptococcus sp. It also demonstrated tolerance to the presence of bile salt, acidic pH, and salinity up to 60 ppt. The sensitivity analysis towards antibiotics, hemolytic activity and the safety assessment on Nile tilapia fish (Oreochromis niloticus) confirmed the safety of this isolate. Based on the findings of this investigation and the isolate’s characterization, Bacillus rugosus NM007 could serve as a new promising probiotic bacterium for aquaculture.

An integrated three-stream network model for discriminating fish feeding intensity using multi-feature analysis and deep learning.

Feed costs constitute a significant part of the expenses in the aquaculture industry. However, feeding practices in fish farming often rely on the breeder's experience, leading to feed wastage and environmental pollution. To achieve precision in feeding, it is crucial to adjust the feed according to the fish's feeding state. Existing computer vision-based methods for assessing feeding intensity are limited by their dependence on a single spatial feature and manual threshold setting for determining feeding status constraints. These models lack practicality due to their specificity to certain scenarios and objectives. To address these limitations, we propose an integrated approach that combines computer vision technology with a Convolutional Neural Net-work (CNN) to assess the feeding intensity of farmed fish. Our method incorporates temporal, spatial, and data statistical features to provide a comprehensive evaluation of feeding intensity. Using computer vision techniques, we preprocessed feeding images of pearl gentian grouper, extracting temporal features through optical flow, spatial features via binarization, and statistical features using the gray-level co-occurrence matrix. These features are input into their respective specific feature discrimination networks, and the classification results of the three networks are fused to construct a three-stream network for feeding intensity discrimination. The results of our proposed three-stream network achieved an impressive accuracy of 99.3% in distinguishing feeding intensity. The model accurately categorizes feeding states into none, weak, and strong, providing a scientific basis for intelligent fish feeding in aquaculture. This advancement holds promise for promoting sustainable industry development by minimizing feed wastage and optimizing environmental impact.

Production, use and nutritive value of fruit wastes as feed in and around the city of West Arsi Zone and Sidama Regional State

The study was carried out to evaluate the availability, use as livestock feed and nutritional value of fruit waste in a few chosen urban (within) and peri-urban (around) areas of West Arsi and Sidama Regional State, Ethiopia. The study areas were chosen using a muti-stage purposive sampling technique and 306 respondents in total-102 from each of Shashemene, Hawassa and Yirgalem-were randomly chosen and interviewed. We used established methodology to examine the nutritional values of six (avocado seed, avocado peel with pulp, papaya pomace, mango, pineapple and banana peels) commonly used fruit waste (FBPs) samples for chemical composition and digestibility analysis. Chi-square was used to examine qualitative results while two-way analyses of variance were used for quantitative factors. Avocado, banana, mango, papaya and pineapple waste were the major useable FBPs for feeding livestock. These wastes were fed to livestock after chopping and wilting without mixing to other feeds. Perishability, health concern, shortage of storage facilities and knowledge were the major limitations whereas low price, high demands, good quality, palatability, use as a source of income and reduction in environmental pollution were the major opportunities for feeding livestock. The range of crude protein (CP) contents were from 5.49 to 19.51 % where papaya pomace contained the highest (p < 0.05) CP content while avocado seed were the lowest (p < 0.05) in CP content. The content of neutral detergent fiber was <45 %, except pineapple peels. The range of acid detergent fiber and acid detergent lignin contents were from 11.23 to 24.29 % and 1.69–13.54 %, respectively. The mean in-vitro dry matter digestibility was within the range of 70.67–88.17 %. In conclusion, the year round production and good nutritive value of fruit wastes make them a choice feed as a source of protein and energy in the study areas. We recommend animal performance evaluation and quantification of these wastes for further use by livestock.