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Author: search.filters.author.Klompanya, A.Subject: search.filters.subject.Broiler

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    Effects of partial substitution of feed with spent coffee grounds on growth performance and carcass quality in broilers
    (2024-03-01)
    Klompanya, A.
    ;
    Mitchaothai, J.
    ;
    Thammakarn, C.
    The research findings found that the spent coffee grounds (SCG) substitution with 5% and 10% in feed (SCG-5 and SCG-10) which exhibited significant (P<0.01) effect on average daily gain with 80.82 and 66.84 g/day as compared to 0% substitution (SCG-0), which 88.62 g/day. While the the affecting on feed conversion ratio was shown in SCG-10 (2.05), which significantly (P<0.01) higher than SCG-5 (1.78) and SCG-0 (1.73). Similar to the carcass quality, SCG-10 was significantly (P<0.01) exhibited lower carcass weight (2,023.38 g) than SCG-5 and SCG-0 (2,267.48 and 2,319.70, respectively). However, there was no significant difference in the percentage of the carcass. Furthermore, substituting SCG in the feed had no impact on the weight of major muscles, such as the breast and thigh muscles. The inclusion of SCG-10 and SCG-5 was significantly increased in liver weight (P<0.05). However, only a high substitution rate of 10% SCG was significantly decreased in abdominal fat (P<0.01) as compared to the inclusion levels of 5% and 0% in the feed. In conclusion, substituting 5% SCG into the feed had shown to be a marginal impact on production efficiency, while a 10% SCG substitution rate distinctly influenced both production efficiency and carcass quality.
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    Effect of strain and gender on production performance, carcass characteristics and meat quality of broiler chickens
    (2022-03-01)
    Kamporn, K.
    ;
    Deeden, B.
    ;
    Klompanya, A.
    ;
    Setakul, J.
    ;
    Chaosap, C.
    The effects of strain and gender on production performance, carcass characteristics, and meat quality of broiler chickens were examined. There were no significant interactions between broiler strain and gender (P>0.05). Arbor Acres showed significantly higher body weight (BW) and average daily gain (ADG), while feed intake (FI) and feed conversion ratio (FCR) were significantly lower than Ross308 and Cobb500, especially in the fifth and sixth weeks of age. Arbor Acres also showed the highest slaughter weight (P<0.05). However, carcass composition was not significantly different between strains. There were no significant differences between the strains in muscle pH, drip loss and cooking loss. However, Cobb500 had a lower shear force value than the others (P<0.05). As for the gender-specific effect, BW and ADG of male broilers were higher than those of females from the second to the sixth week of age (P<0.01). At the second week of age, female broilers had higher FI, while male broilers had higher FI from the third to the sixth week of age (P<0.01). Male broilers had lower FCR than females from the fourth to the sixth week of age (P<0.01). Male broilers had higher slaughter weight, carcass weight and carcass composition weight (P<0.01) except for abdominal fat (P>0.05). Percent carcass composition did not differ among broiler strains except for percent tenderloin and percent abdominal fat, which were higher in females than males (P<0.01). Broiler strains had no effect on meat quality except that Cobb500 had lower shear force (P<0.05). The pH3, pH24 and yellowness color values had differed between genders, which male muscle had higher pH3 (P<0.05), pH24 (P<0.01) than female but female muscle had higher yellowness value than male (P<0.05). Interaction effect between breed and gender was found in lightness (P<0.01) and redness colors (P<0.05).