Publications by authors named "Yulianri Rizki Yanza"
Background And Aim: Zinc (Zn) is important for various physiological processes in broiler chickens, including protein and carbohydrate metabolism, growth, and reproduction. The gastrointestinal absorption of Zn in broiler chickens was notably low. One approach that has been explored for enhancing the bioavailability of Zn is the development of Zn nanoparticles (NPs).
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- The meta-analysis reviewed 26 studies on how various saponins affect ruminant production, milk yield, and overall health, finding that up to 40 g/kg DM of saponins does not harm feed intake.
- Results showed species-specific responses to saponin supplementation, indicating larger ruminants cope better with saponin bitterness while demonstrating varied impacts on nutrient digestion and fermentation.
- The study emphasized the need to carefully select saponin sources and consider animal health to optimize ruminant production, as some extracts can boost growth and milk yield while others may lead to health issues like increased blood creatinine levels.
Extracts of Acacia and Quebracho have been used as a feed additive in ruminant diets; the effects, however, have been varied. This study used a meta-analysis approach to evaluate the use of those extracts on nutrient utilization, performance, and methane production of ruminants. A database was developed from 37 published papers comprising 152 dietary treatments.
View Article and Find Full Text PDFDietary Coleus amboinicus Lour. decreases ruminal methanogenesis and biohydrogenation, and improves meat quality and fatty acid composition in longissimus thoracis muscle of lambs.
J Anim Sci Biotechnol
January 2022
Article Synopsis
- Methane production and fatty acids biohydrogenation in the rumen negatively impact ruminant production and food quality; Coleus amboinicus Lour. (CAL) with high polyphenol content may mitigate these effects.
- The study included in vitro and in vivo experiments with varying levels of CAL in lamb diets to assess its impact on methane reduction, fatty acid profiles, and meat quality.
- Results showed CAL significantly reduced in vitro methane production by 51% and decreased in vivo methane production by 20%, along with a notable reduction in total methanogen counts.
The objective of this meta-analysis was to elucidate whether there are general underlying effects of dietary tannin extract supplementation on rumen fermentation, digestibility, methane production, performance, as well as N utilisation in ruminants. A total of 70 papers comprised of 348 dietary treatments (from both in vivo and in situ studies) were included in the study. The database was then statistically analysed by the mixed model methodology, in which different experiments were considered as random effects and tannin-related factors were treated as fixed effects.
View Article and Find Full Text PDFBackground And Aim: Tannins are functional secondary metabolites that may provide benefits to ruminants. However, to date, their effects on broiler chickens remain inconclusive. This study aimed to evaluate the effectiveness of dietary tannin levels on the performance, body organs, and amino acid (AA) digestibility of broiler chickens using a meta-analysis.
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- Lour. is a perennial herb native to Indonesia and cultivated in various regions, with significant phytochemicals including rosmarinic acid, flavonoids, and abietane diterpenoids.
- A study comparing plants from Indonesia and Poland showed that Indonesian plants had higher crude protein and ADF contents, while Polish plants had more polyphenols and antioxidant potential.
- While Lour. can grow in colder climates like Poland, its nutritional properties and bioactivity vary significantly based on the cultivation location.
The efficacy of methane (CH ) suppression using medium-chain fatty acids (MCFA) remains inconclusive, despite a number of studies on this topic are available. We thus carried out a meta-analysis to integrate the published data on different concentrations and types of MCFA such as lauric acid and myristic acid, which investigated ruminal methanogenesis and fermentation in in vitro and in vivo experiments. In vitro MCFA sources were classified either as pure MCFA (lauric acid, myristic acid and their combinations) or as natural MCFA-rich oils (canola oil enriched with lauric acids, coconut oil, krabok oil and palm kernel oil).
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