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Effects of Dietary Crude Glycerol Supplementation on Performance, Egg Quality, and Yolk Fatty Acids in Laying Hens: A Systematic Review and Meta-Analysis
(2026-05-01)
Sivapirunthep, Panneepa
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Sulaimon, Rasheed Olayiwola
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Sahatsanon, Katatikarn
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Jayanegara, Anuraga
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Patthararangsarith, Pattraphorn
This study evaluated the effects of dietary crude glycerol supplementation on laying performance, egg quality traits, and egg yolk fatty acid composition in laying hens. A systematic search of peer-reviewed literature from major scientific databases identified thirteen eligible studies. Effect sizes were calculated as mean differences using random-effects models, and subgroup and meta-regression analyses were conducted to assess the influence of inclusion level, hen age, strain, and dose–response relationships. Moderate inclusion of crude glycerol (≤4%) significantly increased egg production (MD = +0.71 percentage points; p = 0.019) and egg mass (MD = +1.08 g; p = 0.007). External egg quality traits, including shell thickness, shell breaking strength, and shell percentage, were not significantly affected, while albumen height decreased slightly (MD = −0.14 mm; p = 0.004) and Haugh unit remained unchanged. Crude glycerol supplementation also increased linoleic acid, total unsaturated fatty acids, and total polyunsaturated fatty acids (p < 0.001). Responses varied with inclusion level, hen age, and strain, and a positive dose–response relationship between crude glycerol level and yolk linoleic acid was observed in white-egg strains. Overall, moderate crude glycerol inclusion can partially replace conventional dietary energy sources with minimal adverse effects on egg quality.
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Effects of Host-Specific Multi-Lactic Acid Bacterial Probiotics on Performance, Carcass Traits, Meat Quality, and Gut Microbiome in Fattening Pigs
(2026-04-01)
Sahatsanon, Katatikarn
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Chaweewan, Kamon
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Sringarm, Korawan
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Arjin, Chaiwat
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Hnokaew, Patipan
This study evaluated the effects of a host-specific multi-lactic acid bacterial (MLAB) probiotic and sex on performance, carcass traits, meat quality, and gut microbiota in fattening pigs. Thirty-two crossbred pigs (10 ± 0.80 weeks; 23.43 ± 0.17 kg) were assigned to a 2 × 2 factorial design with diet (control or MLAB probiotics) and sex (barrow or female). The MLAB supplement consisted of seven lactic acid bacterial strains mixed in equal proportions (≈14.3% each)—Lactobacillus brevis, Lactobacillus reuteri, Weissella cibaria, Lactobacillus paraplantarum, Lactococcus lactis, Lactobacillus pentosus, and Pediococcus pentosaceus—administered at 1 × 10<sup>9</sup> CFU/kg feed for 12 weeks. MLAB probiotic supplementation reduced bone proportion while increasing skin and fat content (p < 0.05), with a treatment × sex interaction for loin eye area (p < 0.05). Meat quality improved in the MLAB group, showing higher ultimate pH and lower cooking loss (p < 0.05), indicating improved water-holding capacity. Female pigs exhibited higher early postmortem pH and protein content (p < 0.05). Microbiome analysis revealed increased abundances of Oxalobacteraceae and Paludibacteraceae and reduced Clostridium sensu stricto 6 (p < 0.05). These results suggest that host-adapted probiotics may support gut microbial balance and improve certain pork quality traits.
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Effects of supplementing hemp (Cannabis sativa L.) leaves in concentrate diet on carcass traits and meat characteristics of Longissimus muscle in goat kids
(2025-12-01)
Chaosap, Chanporn
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Sahatsanon, Katatikarn
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Adeyemi, Kazeem D.
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Sringarm, Korawan
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Mitchaothai, Jamlong
The influence of dietary hemp (Cannabis sativa L.) leaf (HL) supplementation in a concentrate diet on carcass traits, physicochemical properties, amino acids, ribonucleotides, lipid oxidation, and fatty acids of Longissimus thoracis et lumborum (LTL) muscle in goat kids was evaluated. Fifteen entire Thai native x Boer bucks (body weight: 16.28±0.35kg; age: 4 months) were randomly assigned to concentrate diets containing 0% (HL-0), 2% (HL-2), or 4% (HL-4) HL for 150 days, after which they were slaughtered. The LTL muscles were assessed for physicochemical properties, fatty acids, amino acids, ribonucleotides and lipid oxidation. The HL-4 goats had heavier hot and cold carcass weights compared to the other groups (P<0.05). Shoulder percentage was lower in the HL-0 goats than in the other groups (P<0.05). The diets did not affect color, chemical composition, shear force, muscle fiber diameter, sarcomere length, ribonucleotides, or free and total amino acids in the LTL muscle in goats. However, the HL-4 meat had higher (P<0.05) pH 24h compared to the HL-2 meat, while the pH of the HL-0 meat did not differ from that of the other groups. The HL-4 meat had lower cook loss compared to the other meats (P<0.05). HL supplementation increased C20:4n-6 concentration (P<0.05). HL-2 meat had higher total polyunsaturated fatty acids compared to the other groups (P<0.05). The HL-2 and HL-4 meats had lower TBARS values (P<0.05) throughout the 5-day postmortem chill storage. Dietary inclusion of 2–4% hemp leaves improved carcass yield, fatty acids, and oxidative stability of goat meat without compromising other quality traits, suggesting its potential as a natural feed additive to enhance meat quality and shelf life.
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Influence of host-specific and locally isolated multi-strain probiotics on piglet performance, mortality, inflammatory response, and gut microbiome
(2025-04-01)
Sahatsanon, Katatikarn
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Sivapirunthep, Panneepa
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Sringarm, Korawan
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Arjin, Chaiwat
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Hnokaew, Patipan
Objective: This study aimed to assess the impact of host-specific and locally isolated multi-strain probiotics on piglet performance, mortality, inflammatory responses, and gut microbiome. Methods: A total of 52 piglet litters-34 from Landrace sows and 18 from Large White sows-were allocated to two groups: a control group and a multi-strain probiotic group. The probiotic group comprised seven strains of lactic acid bacteria (MLAB): Lactobacillus brevis, Lactobacillus reuteri, Lactobacillus paraplantarum, Lactococcus lactis, Lactobacillus pentosus, Weissella cibaria, and Pediococcus pentosaceus. Each strain was included in equal concentrations, resulting in a final liquid mixture containing 10<sup>9</sup> colony forming units/mL. The MLAB group received the probiotics orally starting from 7 days of age until weaning at four weeks. Following weaning, supplementation continued via feed spraying for an additional four weeks. Results: MLAB supplementation did not significantly affect piglet performance but showed a trend towards reducing the mortality rate (p = 0.06). It influenced the inflammatory response by upregulating the expression of anti-inflammatory cytokines interleukin (IL)-4 and IL-10 (p<0.05). Microbial community analysis indicated that MLAB supplementation increased both microbial diversity (Simpson index: p = 0.06) and species richness (Chao1 index: p = 0.02). Piglets receiving MLAB had a significantly higher abundance of the phylum Firmicutes (p<0.01) compared to the control group, while the abundance of the phylum Bacteroidota was markedly reduced (p<0.01). In addition, the relative abundance of the bacterial genera Prevotellaceae_NK3B31 (p<0.01) and Chlamydia (p = 0.03) was lower in the MLAB group. Conclusion: Overall, these results suggest that while MLAB supplementation does not directly improve piglet growth performance, it has the potential to improve immune function and promote a healthier gut microbiota in weaning piglets, which could ultimately reduce mortality rates.
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Effect of Dietary Cannabis sativa L. Residue Supplementation on Meat Quality and Flavor-Enhancing Free Amino Acids in Broiler Chickens
(2025-03-01)
Sopian, Yusup
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Sahatsanon, Katatikarn
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Satsook, Apinya
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Arjin, Chaiwat
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Sringarm, Korawan
This study investigated the effects of dietary Cannabis sativa residues (CR) on broiler growth and meat characteristics. A total of 256 one-day-old male Ross-308 broilers were randomly assigned to four treatments: a basal diet (control) and diets containing 0.5%, 1%, and 2% CR. CR supplementation had no effect on growth performance, survival rate, or European production index but reduced average daily feed intake (p < 0.01). No significant differences were found in meat pH, color, drip loss, thawing loss, cooking loss, or shear force (p > 0.05). However, the ΔE values (0.5% CR: 3.97, 1.0% CR: 3.71, 2.0% CR: 4.95) indicated perceptible color differences compared to the control. CR significantly reduced C12:0, C20:1n9, and C22:1n9 fatty acids (p < 0.05) while increasing free amino acids, including aspartic acid, serine, proline, methionine, and phenylalanine (p < 0.05). It also increased moisture content and decreased fat content, especially at 2% CR (p < 0.05). In conclusion, CR supplementation improves the flavor and nutritional value of broiler meat and is a potential alternative to conventional feed additives.
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Effect of Cannabis sativa residue supplementation on meat quality, antioxidative capacity, and immune response in 34-day-old broiler chickens
(2025-01-01)
Sopian, Yusup
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Sahatsanon, Katatikarn
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Satsook, Apinya
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Arjin, Chaiwat
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Lumsangkul, Chompunut
The overuse of antibiotics in animal feed has led to rising antibiotic resistance, highlighting the need for sustainable alternatives like herbal supplements. Cannabis sativa residues (CR), byproducts of the cannabis industry, have medicinal properties that may benefit poultry production. This study evaluated the effects of CR supplementation on meat quality, antioxidative capacity, and immune response in 34-day-old broiler chickens. A total of 256 male one-day-old Ross 308 chicks were randomly divided into four groups (0%, 0.5%, 1%, or 2% CR) and reared for 34 days. Broilers fed 1% CR had the highest eviscerated carcase yield, while those receiving 2% CR had the highest breast and intestine percentages (p < 0.05). A 2% CR dietary inclusion significantly elevated the pH of breast meat at 24 h post-mortem and reduced shear force and drip loss in breast meat (p < 0.05). Malondialdehyde levels in meat were significantly lower during storage (0, 3, and 5 days) in CR-fed groups (p < 0.01). No significant changes were observed in thawing loss, cooking loss, or meat colour (p > 0.05). While CR had no significant effect on immune-related gene expression, it significantly upregulated antioxidant-related genes such as catalase (CAT) and nuclear factor erythroid 2–related factor 2 (Nrf2) in the liver and increased Nrf2 expression in the jejunum (p < 0.05). Principal component analysis revealed positive correlations between CR supplementation and antioxidant gene expression. These results suggest that CR, at 0.5 to 2%, may enhance meat quality and antioxidant defense in broiler chickens.
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The effects of using pineapple stem starch as an alternative starch source and ageing period on meat quality, texture profile, ribonucleotide content, and fatty acid composition of longissimus thoracis of fattening dairy steers
(2021-10-01)
Chaosap, Chanporn
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Sahatsanon, Katatikarn
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Sitthigripong, Ronachai
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Sawanon, Suriya
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Setakul, Jutarat
The effects of different starch sources (ground corn (CO), ground cassava (CA) and pineapple stem starch (PI)) and ageing period (14 and 21 days) on meat characteristics of Holstein steers were investigated. Starch sources had no effect on meat characteristics, while meat aged for 14 days had less thawing loss than that aged for 21 days. Meat from steers fed PI had higher levels of inosine monophosphate (IMP) than the others (p < 0.05). With increasing duration of ageing, the content of IMP and guanosine monophosphate in the meat decreased, while the content of hypoxanthine in-creased (p < 0.05). Meat from steers fed CO had the highest oleic acid but the lowest erucic acid (p < 0.05) in contrast to meat from steers fed PI, which had the lowest oleic acid but the highest erucic acid. Steers fed CO appeared to produce healthier meat as this was positively associated with mon-ounsaturated fatty acid content. Meat from steers fed PI had higher levels of IMP, which may be associated with good taste.

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