Chemical Compositions of Brown and Green Seaweed, and Effects on Nutrient Digestibility in Broiler Chickens

Abstract

This study aimed to analyse the nutritional properties, apparent ileal digestibility (AID) and apparent metabolisable energy (AME) of broiler chickens fed with brown seaweed (BS) and green seaweed (GS). Proximate analysis was performed to determine the nutrient composition of seaweed. The amino acids were determined using high-performance liquid chromatography (HPLC), and atomic absorption spectroscopy was used to determine the minerals content. The gross energy (GE) was determined using a fully automatic bomb calorimeter, and the AME value was calculated. Titanium dioxide (TiO2) was used as an indigestible marker to calculate the AID. A digestibility trial was conducted to investigate the effects of seaweeds on crude protein (CP), crude fibre (CF), ether extract (EE), dry matter (DM), organic matter (OM), amino acids (AA) and minerals digestibility, and AME on broiler chickens. Thirty-six broiler chickens were randomly distributed into two dietary treatment groups with six replicates and three birds per replicate. Results showed that brown and green seaweed was a source of macro and micronutrients. For the AME and AID of seaweed-based diets, the results showed that the AME value for BS and GS was 2894.13 and 2780.70 kcal/kg, respectively. The AID of BS and GS was 88.82% and 86.8% for EE, 82.03% and 80.6% for OM, 60.69% and 57.80% for CP, 48.56 and 44.02% for CF, and 17.97 and 19.40% for ash contents, respectively. Meanwhile, the AID of CP and CF was significantly higher for BS compared to the GS. Findings showed that the AID of various AA was 40.96 to 77.54%, and the AID of selected minerals (Ca, Na, K, Mg, Zn, Cu, Fe) for both BS and GS groups were above 90%.

Green seaweeds fatty acids and heterocyclic derivatives against cancer: Opinion on future nutraceutical application

“…As stated above, seaweed has several health-benefiting potentials ( 16 – 18 ). Numerous sulfated and carboxylated polysaccharides, including alginate, ulvan, and fucoidan, as well as carotenoids, phenolic compounds, tocopherols, and peptides, are among the many bioactive substances found in seaweed ( 19 ).…”

“…Green algae contain water-soluble sulfated polysaccharides that have antioxidant and anticancer properties ( 35 ). On the other hand, the proximate and mineral compositions of green seaweed have been determined ( 19 , 28 , 36 ), and compared to brown seaweed, green seaweed has lower protein, lipid, and zinc content with higher carbohydrate content ( 19 ). A review by Peñalver et al., 2020 also pointed out that overall, green seaweed has lower protein, lipid, and ash content in comparison to red and brown seaweed ( 23 ).…”

Seaweed Extracts as Bio-stimulants for Rice Plant (<em>Oryza </em><em>sativa</em>) – a Review

“…Seaweed is one of marine species that is rich in minerals due to the bioaccumulation of metal ions found in the sea water and concentrates the accumulated components as carbonate salts [71]. Seaweed, especially brown and green seaweeds, have been shown to be a significant source of essential nutrients for plant development in previous studies [72].…”

The Effect of Encapsulated Propyl Propane Thiosulfonate (PTSO) on Apparent Ileal Digestibility and Productive Performance in Broiler Chickens

“…However, the feed is considered the major economic cost of animal production, therefore, the scientific research to improve the utilization of nutrients by the broiler chicken evolve continuously. Poultry diets are formulated based on both digestibility and nutrient absorption, which allows us to know their utilization rate by the bird [ 4 , 5 ]. Increasing nutrient digestibility in the diet has been shown to enhance the productive performance of broiler chickens [ 5 , 6 ].…”

“…Poultry diets are formulated based on both digestibility and nutrient absorption, which allows us to know their utilization rate by the bird [ 4 , 5 ]. Increasing nutrient digestibility in the diet has been shown to enhance the productive performance of broiler chickens [ 5 , 6 ]. Different formulation strategies have been adopted to optimize the growth and improve feed efficiency of birds [ 7 ], such as fecal digestibility, true digestibility, standardized ileal digestibility, and apparent ileal digestibility (AID) [ 8 ]; all of them quantified digested dietary nutrients [ 9 ].…”