Duck Feed Research Articles

Epidemiological and molecular investigations of Salmonella isolated from duck farms in southwest and around area of Shandong, China

Salmonella is a zoonotic pathogen posing a serious risk to the farming industry and public health due to food animals serving as reservoirs for future contamination and spread of Salmonella. The present study is designed to monitor the contamination status of Salmonella in duck farms and the main control points during breeding. 160 strains of duck-derived Salmonella were isolated from the 736 samples (cloacal swabs, feces, water, feed, soil, air and dead duck embryos) collected in southwest Shandong Province and the province's surrounding area. The percentage of Salmonella-positive samples collected was 21.74 % (160/736), and the greatest prevalence from duck embryo samples (40.00 %, 36/90). These Salmonella were classified into 23 serotypes depending on their O and H antigens, in which S. Typhimurium (30.15 %), S. Kottbus (13.97 %) and S. Enteritidis (10.29 %) were the prevailing serotypes. Subsequently, the molecular subtyping was done. Clustered regularly interspaced short palindromic repeats (CRISPR) analysis showed that 41 strains of S. Typhimurium and 14 strains of S. Enteritidis were classified into 13 and 3 genotypes, respectively. 19 S. Kottbus isolates from different sources featured ST1546, ST198, ST321, and ST1690 by multilocus sequence typing (MLST) analysis, among which ST1546 belongs to S. Kottbus was a new ST. The minimum spanning tree analysis based on the two CRISPR loci and seven MLST loci from all S. Typhimurium, S. Enteritidis and S. Kottbus isolates revealed that duck embryos, feed and water were key control points to the spread of Salmonella along the breeding chain. Meanwhile, the emergence of S. Kottbus in duck flocks was considered a potential public health hazard.

Evaluation of Crude Enzyme Addition Based Muscovy Duck Feed on Reproduction Perfomance

The purpose of this was to evaluate the reproductive perfomance of muscovy duck by using crude enzymes as additive in basal feed. The research material’s 32 muscovy duck, 4 males, 28 females, aged 5 months and normal body weight of males muscovy duck 3,5 – 4 kg dan females 2 – 2,5 kg. The feed material used was basal feed with the addition crude enzymes in each treatment. The cage equipment used were feed, water cup, hatching machine and scales. The research was conducted for 40 days with experimental methods and Cross Over Design (Switching Design) observation period of four times, seven days with treatment, three days of break and start again next period.  The addition of crude enzymes in muscovy duck feed can improve reproductive perfomance. The results showed that the use of 0.2% crude enzymes (T2) in basal feed can increase the hatching weight of day old duck and dod survival without mortality. The other results, increased hatchability occurred in the basal feed containing 0.1% crude enzymes (T1), compared to the control feed without the addition of crude enzymes. This means that using of 0.2% crude enzymes in feed as an additive increased hatching weight, dod survival and muscovy duck hatchability.

Effect of Tropical Alfalfa (Medicago sativa L. cv Kacang Ratu BW) on the Blood Profile in Hybrid Ducks

Abstract This study aimed to determine the effect of the use tropical alfalfa (Medicago sativa L. cv Kacang Ratu BW) meal in feed on the blood profile in hybrid ducks. 72 day-old duck were reared for 42 days using stage cages. Ducks were randomly divided into three treatments with four replications and each of the replication consisted of six hybrid ducks. The treatment in this study used tropical alfalfa powder in formulated basal diet with different levels. The study was conducted with three treatments including AL0: 0% tropical alfalfa (control), AL4: 4% tropical alfalfa, and AL8: 8% tropical alfalfa. The feed was given at the age of eight days and adapted to the needs of the ducks. Data observed were blood profile in the form of total erythrocytes, total leukocytes, hemoglobin levels, hematocrit values, heterophil levels, lymphocyte levels and H/L ratio of hybrid broiler ducks. All data obtained were analyzed using descriptive statistical analysis. Statistical analysis used nonparametric tests using Kruskal-Wallis and further tests using Man Whitney for data that were significantly different between treatments. The results showed that the use of tropical alfalfa meal had no significant effect (P>0.05) on total erythrocytes, total leukocytes, hemoglobin levels, hematocrit values, heterophil levels, lymphocyte levels and H/L ratio of hybrid broiler ducks. It can be concluded that the use of tropical alfalfa meal up to 8% in hybrid duck feed did not effect on blood profile.

Metagenomic insights into the relationship between intestinal flora and residual feed intake of meat ducks

In this study, we sought to determine the effects of intestinal flora on the feed efficiency of meat ducks by evaluating the correlation between intestinal flora and residual feed intake. The F2 generation of Cherry Valley ducks × Runzhou Crested White ducks was used as the study subjects, and feed consumption being recorded from d 21 to 42. RFI was calculated based on growth performance, and 20 low RFI and 20 high RFI ducks were randomly selected to characterize the effect of RFI on growth performance. To analyze the intestinal flora affecting RFI, 16s rDNA sequencing was performed on the contents of 5 intestinal segments from the HR and LR groups, and macrogenomic sequencing was performed on the cecal contents. Feed intake, average daily feed intake, feed conversion ratio, and residual feed intake were lower in low RFI. Analysis of the intestinal flora revealed the cecum to be more highly enriched in the carbohydrate metabolism pathway and less enriched with potentially pathogenic taxa than the other assessed intestinal regions. Further analysis of the cecal microbiota identified nine significantly differentially enriched intestinal flora. In this study, we accordingly identified a basis for the mechanisms underlying the effects of the intestinal flora on meat duck feed efficiency.

Rancang Bangun Mesin Pengaduk Pakan Ternak Bebek Melalui Pendekatan Antropometri Guna Mengurangi Waktu Proses Pengadukan di UD. Hadhita Jaya Makmur

UD. Hadhita Jaya Makmur was established in 1993 and located on Jalan S. Parman, Modopuro Village Rt.03, Rw.07, Mojosari District, Mojokerto Regency. The founder of this company is Mr. Drs.Munasrib, who is known in poultry farming activists, especially ducks. UD. Hadhita Jaya Makmur has ducks with a population of 3000 laying ducks, ducks at UD Hadhita Jaya Makmur produce about 2100 eggs every 2 days in December. UD. Hadhita Jaya Makmur strives to improve the quality of duck eggs by setting a target of feeding ducks as much as 500 kg every day for a population of 3000 ducks that are ready to lay eggs. Nevertheless, the use of manual methods in mixing duck animal feed ingredients has some negative impacts. The process of stirring duck animal feed takes quite a long time, which can reach 40 minute so that workers at UD. Hadhita Jaya Makmur experienced fatigue. One idea to be able to solve the problem is to design an animal feed mixer machine to provide significant results, providing results in accelerating the time of the 500kg per day animal feed stirring process which was originally at UD. Hadhita Jaya Makmur stirred animal feed ingredients in the process still using manual methods with a processing time duration of 43 minutes. After the design of the animal feed mixer machine, the process time of stirring animal feed ingredients to 15 minutes, the magnitude of the reduction in process time also affected the worker productivity index which was originally 19,3% to 55.5%.

The Effect of Supplementation with Organic Acid and Oregano Oils in Drinking Water on Pekin Duck Growth and Welfare

This study evaluated duck growth, health, and welfare in response to water supplementation with organic acid (OA) and oregano oils (OOs) in Pekin duck. The treatments used in this study included a control (CON) treatment with no water additives given, an OA treatment (ProPhorce Exclusive NC®), and an OO treatment (Nubiotic 4X Concentrate®). The OA and OO improved the feed conversion ratio (FCR) and body weight (BW) (p < 0.01) compared to the control (CON). Both OA and OO showed differences (p < 0.05) in villus height and crypt depth compared to the CON. But only OA showed an increase (p < 0.01) in villus height and villus height/crypt depth ratio. On D 35, the total plasma corticosterone levels, heterophil-to-lymphocyte ratios, and asymmetry scores for OA and OO were decreased (p < 0.05) compared to CON, indicating lower stress susceptibility. The pH levels of OA ceca and jejunum were lower (p < 0.05) compared to CON. Tibia breaking strength was increased (p = 0.02) for OA compared to CON, while no differences were found with OO (p > 0.05). In conclusion, these experiments indicate that OA and OO can be used to improve duck growth, feed efficiency, stress susceptibility, and bird welfare.

Utilization of Various Wastes in Maggot Cultivation AsLivestock Feed in Kamang Magek District, Agam Regency

Kamang Magek District is one of the sub-districts located in the eastern part of Agam Regency. Many small and medium enterprises (SMEs) are developing in Kamang Magek District, several UKM and farmer groups produce various by-products of organic waste which often become environmental problems. In addition to MSME waste, there is also household waste and market waste which often cause environmental pollution. These wastes can be used as feed for maggot development. Maggot cultivation apart from being a solution to environmental pollution is also a good source of protein for poultry feed which can increase livestock productivity. The community problems encountered in Kamang Magek District are the large amount of organic waste that pollutes the environment, the low productivity of livestock and the income of farmer groups. Community service is carried out through lectures, discussions, socialization of science and technology and demonstrations of how and how to apply maggot as animal feed. The Community Service was held in the BPP Hall of Kamang Magek District attended by 15 duck breeders, chicken breeders and catfish breeders selected by BPP Kamang Magek District. Based on the discussion results, more than 75% of breeders only provide feed in the form of rice bran and household waste residue and only 15% of breeders provide feed in the form of self-formulated feed using corn, bran and concentrate purchased at the poultry shop and 10% of breeders provide concentrate feed that has become the result of a feed factory formulation. Of all the breeders, there are no breeders who use maggot as feed for their livestock, this is because there are no breeders who have succeeded in cultivating maggot even though they have tried several times but failed. Based on the results of discussions with participants, breeders are interested in developing maggot cultivation because of the large amount of waste used as maggot feed as a cost-efficient solution for duck or chicken feed.

Growth Performance in Laying Ducks Fed Protein Diets supplemented by Fresh Black Soldier Fly Larva

Live black soldier fly (BSF) maggots serve as an alternative feed for ducks and other poultry, boasting a protein composition similar to fish meal. The current study aimed to evaluate the effect of live BSF maggot supplementation as a protein source on increasing duck daily production, feed conversion ratio, and egg quality. A total of 120 female Alabio ducks aged 7 months were randomly divided into 24 cages with four treatments and six replications. Each cage consisted of five ducks. Performance parameters such as daily egg production, feed conversion ratio, and egg mass production were evaluated, along with the quality of duck eggs, including egg weight, yolk weight, yolk crude protein, and albumen crude protein. The results revealed that protein levels did not significantly affect feed consumption during the laying phase for ducks. However, the comparison of duck day production between treatment groups indicated that ducks receiving lower protein levels (13.43%) exhibited lower production, compared to those with higher protein levels (18.29%). Furthermore, feed protein content had a notable impact on egg weight, yolk weight, and albumen crude protein. The study demonstrated a significant increase in egg yolk weight, while the percentages of egg yolk weight and eggshell weight showed no significant differences. In conclusion, this research suggests that supplementing duck diets with live BSF maggots can enhance egg quality and performance parameters. Keywords: Black soldier fly, Duck, Egg quality, Maggot, Performance, Source of protein

Effects of Fresh Azolla microphylla Supplementation on Pelleted Basal Diet to Local Muscovy Duck Breed Production Performances

The study was aimed to evaluate the effect of feeding fresh Azolla microphylla on pelleted basal feed on the Local muscovy duck breed production performances. The research was done for 2 months August to September 2023, in the Muscovy duck farm, Paguyuban Petani Mandiri Kademangan, (PPMK), Blitar Regency, and feed analysis was done in the Nutrition and Animal Feed Laboratory, Faculty of Animal Science, Muhammadiyah Malang University. The research method used is experiment using a completely randomized design consisting of 3 treatments and 5 replications, each experimental unit used 4 ducks, reared and plotted randomly in the litter cage. The research variables observed were: day old duck weight, final weight, feed intake, FCR and performance index. The results of the study of the effect of supplementation 10% of fresh Azolla microphylla on the best performance index of Muscovy duck (Cairina moschata), can be apply for duck feed.

Growth performance, meat quality, strength of jejunum and leg bones of both sexes Cherry Valley ducks fed with zeolite

Zeolite, as a natural mineral, could be a good additive for ducks, in line with pro-environmental trends. The study aimed to evaluate zeolite additives in feed for broiler ducks of both sexes on production results, meat quality, and the strength of the jejunum, tibia, and femur. The experiment used 200 Cherry Valley ducks, divided into a control group of males (CM) and females (CF) and an experimental group of males (ZM) and females (ZF). In the control groups, a commercial diet was used. In the experimental groups, 1% zeolite was added. The ZM group demonstrated higher body weight and weight gain than the CM group. Zeolite reduced the feed conversion ratio. A higher liver weight was found in the experimental group (ZM). Notably, zeolite influenced the weight of male pectoral muscles. Higher water loss in the pectoral muscles and higher protein content in the leg muscles were found in the same group. Females had a higher weight of neck and wings with skin. Female pectoral muscles had lower protein and water content. Zeolite in feed at a 1% level for broiler ducks could be recommended as a natural additive that positively affects the ducks' production results concerning good quality meat.

Egg Quality and Heavy Metal Concentrations in Meat, Eggs and Inner Organs of Laying Ducks Fed under a Conventional Feeding in Lombok, Indonesia

The search for alternative protein sources for duck feed is important considering its high cost. An experiment involving 100 forty-wk-old laying ducks was conducted for eight weeks to study the effects of fresh water fish (sapu-sapu fish -SSF) as single protein sources on egg quality and heavy metal concentration. The SSF levels were 28 and 35% of the feed and the remaining constituent was rice bran with metabolizable energy approximately 2,943 and 2,934 kcal/kg, respectively. Fresh water fish did not effect on egg quality measured except egg weight and shell thickness (63.2±0.30 to 67.9±0.22g) and shell thickness (0.50±0.04 to 0.52±0.04g) with increasing dietary SFF(P<0.05). Mean concentrations of heavy metals in local duck samples decreased in the order kidney>liver>egg>meat for Pb and liver>kidney>meat>egg for Cu. Lead concentrations in meat, eggs, liver and kidney were 1.267± 0.825, 1.311±0.737, 1.762±0.729 and 2.172±0.770 mg/kg respectively. These values were higher than the admissible amounts under the Indonesian National Standards (1.0 mg Pb/kg) and FAO (0.1 mg Pb/kg). Accumulation of Cu in the meat, eggs, liver and kidney was 12.798±4.181, 7.011±1.949, 30.165±16.561 and 14.392± 4.208 mg/kg respectively. These levels were also higher than that recommended by the European Commission. The conclusion of this study proved that feeding SSF to laying ducks raised by small farmers contained a significantly high concentration of heavy metals not appropriate for human consumption when high levels of SSF was fed

A preliminary study on short- and medium-chain chlorinated paraffins in duck farms: Concentrations, distribution, and dietary exposure risks

Chlorinated paraffins (CPs) in poultry feed and the farm environment might bioaccumulate in poultry eggs. Unlike chickens, which are mostly raised in cages, ducks are commonly raised free range. This would expose ducks to CPs in the environment. However, information on the presence of CPs on duck farms is scarce. In the present study, samples of duck eggs, duck feathers, poultry feed, and soil were collected from 25 duck farms in South China. Forty-eight congener groups of short- and medium-chain CPs (SCCPs and MCCPs) were detected in the samples. Interestingly, relatively high concentrations of SCCPs and MCCPs were found in the duck feathers. The median concentrations of SCCPs and MCCPs in the duck eggs, feathers, feed and soil were: 46 and 18 ng/g wet weight, 2460 and 992 ng/g, 103 and 47 ng/g, and 24 and 10 ng/g dry weight, respectively. The dominant groups of SCCPs and MCCPs were C10Cl6–7 and C14Cl7–8, respectively. The close relationship between duck feathers and poultry feed indicated that the duck feathers might act as a bioindicator for the exposure of ducks to CPs. The margin of exposure approach was used to assess the health risk, with the results showing that the consumption of duck eggs posed a low risk to different age groups from exposure to SCCPs and MCCPs.

Evaluation of Crude Enzyme Addition Based Muscovy Duck Feed on Reproduction Perfomance

The purpose was to evaluate the reproductive perfomance of muscovy duck by using crude enzymes as additive in basal feed. The research material’s 32 muscovy duck, 4 males, 28 females, aged 5 months and normal body weight of males muscovy duck 3,5 – 4 kg and females 2 – 2,5 kg. The feed material used was basal feed with the addition crude enzymes in each treatment. The cage equipment used were feed, water cup, hatching machine and scales. The research was conducted for 40 days with experimental methods and Cross Over Design (Switching Design) observation period of four times, seven days with treatment, three days of break and start again next period. The addition of crude enzymes in muscovy duck feed can improve reproductive perfomance. The results showed that the use of 0.2% crude enzymes (T2) in basal feed can increase the hatching weight of day old duck and dod survival without mortality. The other results, increased hatchability occurred in the basal feed containing 0.1% crude enzymes (T1), compared to the control feed without the addition of crude enzymes. This means that using of 0.2% crude enzymes in feed as an additive increased hatching weight, dod survival and muscovy duck hatchability.

Dietary supplementation of Moringa leaf powder improves the productive and reproductive performance of Pekin duck

Duck production is often considered advantageous compared to other poultry species due to its lower care and management requirements. However, intensive duck farming necessitates balanced nutrition and additional feed supplements to achieve optimal profitability. In addition to high-quality proteins, vitamins, and minerals, Moringa leaves are rich in various bioactive compounds, and their dietary supplementation is proven to improve the production and reproduction performances of animals and birds. The present study was conducted to reveal the effect of Moringa leaf powder (MLP) in duck ration. The experiment was conducted with different percentages of MLP (0%, 2%, 4% and 6%) supplemented to basal ration of Pekin duck. It was observed that supplementing duck feed with 4% MLP is optimal for improving production and reproduction parameters. This supplementation boosts mature body weight and live weight gain by lowering the feed conversion ratio (FCR), increasing dressing percentage, and decreasing triglycerides and cholesterol levels in blood lipids without negatively affecting other blood parameters. Most importantly, the ducks fed with 4% MLP-supplemented diet reached sexual maturity 7-10 days earlier than other MLP-treated or control groups. Moreover, MLP supplementation enhances the fertility and hatchability of ducks. Notably, the semen volume and sperm quality parameters, including sperm total motility, progressive motility, viability and concentration with reduced sperm abnormality in drakes fed with 4% MLP compared to other MLP-treated and control groups. Therefore, it can be suggested that 4% MLP can be used in duck ration to enhance the productive and reproductive profile of ducks.

The effect of addition of calcium mineral in feed containing fishery wastes on egg production and hatching performance of Mojosari ducks.

Calcium (Ca) is an essential mineral for eggshell formation and muscle contraction, and a lack of it can result in poor egg quality and decreased egg output in laying ducks. This study aims to see how feeding the mineral Ca in a ration containing Shrimp head meal and Bilis fish head affects the laying performance and quality of hatching eggs in Mojosari ducks. A total of 105 female and 15 male Mojosari ducks, aged 78 weeks, were raised for three months and randomly divided into 15 flocks (each flock containing seven females and one male duck). There were three kinds of treatment, namely P0 (control, without mineral), P1 (ratio of Shrimp head meal and Bilis fish head 2:1 + 1% mineral), and P2 ((ratio of Shrimp head meal and Bilis fish head 1:2 + 1% mineral). The findings revealed that adding mineral Ca to feed, including Shrimp head meal and Bilis fish head, had no significant influence (P>0.05) on laying Mojosari duck performance in terms of feed intake, egg production, egg weight, egg quality, ducklings produced, and income over feed cost (IOFC). Furthermore, Ca addition in the ration did not result in substantial increases (P>0.05) in fertility, hatchability, or egg size characteristics. Based on the findings of this study, feeding ducks with shrimp head meal and Bilis fish head can be used as an alternate calcium-free feed formulation.

Городская популяция кряквы (Anas platyrhynchos) в Саратове: зимовка, гнездование, степень синантропизации

The article reflects data on year-round studies of the urban mallard population in Saratov, allowing the assessment of the condition and the study of the factors influencing its formation. An estimate of the mallard population in the winter periods of 2020–2023 is presented. It is shown that the number negatively correlates with frosts and precipitation, and there is a statistically significant positive relationship between the number of people feeding ducks and the number of mallards. The state of the wintering and nesting population is assessed according to the index of synanthropization, the rate and path of penetration of the species into urbanized landscapes, and the stage of formation of the urban population in Saratov is determined. Adaptations of mallards to life in urban conditions and their impact on the ecology of the species as a whole are highlighted. The article emphasizes the need for further research on the impact of urbanization on mallard ecology and the benefits of this species for the urban ecosystem. The importance of monitoring population dynamics for its adaptation to the urban environment and maintaining the stability of the entire population is noted. In addition, the article provides a basis for further studies of the urban mallard population and can be a valuable source of information for the development of local programs for managing the available resources of ducks living in the park area of the city.

The DIFFERENCE OF FEED CONSUMPTION, BODY WEIGHT AND FEED CONVERSION RATIO BETWEEN MALE MUSCOVY DUCK (Cairina moschata) AND MALE MULE DUCK AT THE GROWTH AGE

This study aims to collect data on comparisons of the differences in body size between Muscovy Duck and Mule Duck that can be observed from feed consumption, weight gain and feed conversion ratio between Cairina moschata and Mule Duck to find out the best waterfowl as a cut poultry. Cairina moschata and Mule Duck that are maintained at the age of the growth phase that is from the age of 5 weeks to 9 weeks with gender male Cairina moschata and male Mule Duck were used in this study. The number of samples that were used was 10 Cairina moschata and 10 Mule Duck. The results of the data processing of this study used a t test method in SPSS. The results of this study were the consumption of Mule Duck feed is much more than Muscovy Duck, the weight gain of Mule Duck is much more than Muscovy Duck, and Mule Duck have a lower feed conversion ratio compared to the Muscovy Duck. This experiment concluded that Mule Duck performance are more superior compared to Muscovy Duck.

Effects of lactic acid bacteria-derived fermented feed on the taste and quality of duck meat

The present study aimed to examine the impact of lactic acid bacteria- fermented feed (FF) on the taste and quality of duck meat, in addition to elucidating the potential metabolomic mechanism at play. The findings revealed that ducks fed with FF exhibited elevated pH levels and reduced cooking loss in their meat when compared to the control group. In addition, the sensory evaluation and e-tongue analysis revealed that the tenderness, juiciness, umami, richness, saltiness, and sweetness of duck meat were all enhanced by feeding FF. Moreover, an examination of the metabolome using 1H nuclear magnetic resonance (1H NMR) identified the principal differential metabolites that exhibited a correlation with taste, which included 2-aminoadipate, glucose, glycine, N-acetylcysteine, niacinamide, proline, and threonine. Furthermore, the differential metabolites that exhibited the greatest enrichment in duck meat could be primarily traced to glutathione metabolism, glycine, serine and threonine metabolism, taurine and hypotaurine metabolism. The potential factors contributing to the effect of FF and basic commercial duck feed (CF) were found to be primarily regulated via the aforementioned metabolic pathways. The study, therefore, offers a viable approach for enhancing the taste and quality of duck meat.

Effect of supplementing azolla and empty pea pod on growth performance, blood biochemical metabolites and meat quality in White Pekin ducks

Strategic dietary inclusion of low cost plant derived protein source in duck feed is critical for sustainability of the duck farm. Empty pea pod and azolla are two promising protein sources used as animal feed. The aim of this study was to evaluate the effect of supplementing dried and grounded azolla (AP) and empty pea pods (PP) on growth, blood biochemical metabolites and meat quality in white pekin ducks. A total of 90 white pekin ducklings were randomly assigned to 3 treatment groups (Control, T1 and T2) comprising of three replicated pens. Inside each replicate pen, a total of 10 ducklings were housed under standard management practices. AP and PP was supplemented as top up feed @ 5% of basal diet to experimental birds under T1 and T2 groups, respectively from day 0 to 56. At the end of the trial (56 day), 3 birds from each pen were sampled for serum and breast muscle. Results reveled that AP and PP has significant influence on body growth. The effect on growth was in the order of: T2>T1>Control. It was also observed that PP had hypoglycemic and hypolipidemic effect on ducks. However, AP and PP supplementation did not affect carcass traits, pH, cooking loss and Lipid Peroxidase Activity (TBA value) in duck meat.Thus, it could be concluded that supplementation of dried pea pods (PP) might be of great benefit to white pekin ducks as a source of cheap and unconventional protein.

Heavy metal content in duck eggs and meat that consumes feed containing Sapu-sapu fish (Hypostomus plecostomus)

Abstract. Asnawi. 2023. Heavy metal content in duck eggs and meat that consumes feed containing Sapu-sapu fish (Hypostomus plecostomus). Biodiversitas 24: 3201-3206. This study aimed to evaluate heavy metals in the eggs and meat of ducks feeding on the Sapu-sapu fish (Hypostomus plecostomus Linnaeus, 1758) on Lombok Island, West Nusa Tenggara, Indonesia. The observation of collected Sapu-sapu fish samples from three major Mataram rivers. Duck eggs and meat were collected from a livestock group that fed Sapu-sapu fish. The observed variables include; macronutrients (moisture content, crude protein, crude fat, crude fiber, and ash) and heavy metal content (Cu and Pb) in the Sapu-sapu fish, duck meat and eggs fed by Sapu-sapu fish. The study found that the Sapu-sapu fish possesses complete macronutrients, making it a possible duck feed. The heavy metal content of copper (Cu) in the Sapu-sapu fish ranges from 189.314±0.0238 ppm, while the lead (Pb) content ranges from 4.25±0.18 ppm. The average heavy metal content of Cu in the eggs and meat of ducks consuming Sapu-sapu fish was 7.692±2.158 ppm and 14.523±6.481 ppm, while the levels of lead in eggs and meat of cesarean fish were 0.936±1.557 ppm 0.373±0.211 ppm. The study concluded that the Sapu-sapu fish in the Mataram city stream has a complete nutritional content (protein, fat, amino acids, minerals) but contains high heavy metals. Therefore, if consumed, ducks dispose of it into the eggs and duck meat. As a result, the eggs and meat of ducks that consume sapu-sapu fish contain heavy metals Cu and Pb that exceed the threshold, so they are unsafe for human consumption.