Objective: This experiment was conducted to investigate the effects of fungal treated oil palm fronds (FTOPF) on performance, carcass traits, meat quality, and muscle chemical composition. Methods: Eighteen growing crossbred male goats (Thai Native${\times}$Anglo Nubian) with $18.7{\...
Objective: This experiment was conducted to investigate the effects of fungal treated oil palm fronds (FTOPF) on performance, carcass traits, meat quality, and muscle chemical composition. Methods: Eighteen growing crossbred male goats (Thai Native${\times}$Anglo Nubian) with $18.7{\pm}2.0kg$ of initial body weight (BW) were stratified and blocked by BW in a randomized complete block design. Three diets containing 30% of oil palm fronds (OPF) either untreated (UOPF) or treated with Lentinussajor-caju (FTOPF) with or without urea (FTOPFU) were used as roughage sources in total mixed rations (TMRs). The diets were offered ad libitum and weight gain was determined. At the end of the experimental period, the harvest data and carcass characteristics of the goats were recorded, and muscular longissimus dorsi composition was determined. Results: No significant effect of fungal treated (FT) inclusion was observed in any of the feed intake, growth performance, and carcass characteristics. Likewise, no apparent effects on carcass composition and muscle chemical composition were detected in this study, except for hind leg and chump were affected (p<0.05) by FT inclusion. Conclusion: In conclusion, feeding of fungal (Lentinussajor-caju) treated oil palm frond in TMR diet did not affect performance and carcass characteristics in finishing goats.
Objective: This experiment was conducted to investigate the effects of fungal treated oil palm fronds (FTOPF) on performance, carcass traits, meat quality, and muscle chemical composition. Methods: Eighteen growing crossbred male goats (Thai Native${\times}$Anglo Nubian) with $18.7{\pm}2.0kg$ of initial body weight (BW) were stratified and blocked by BW in a randomized complete block design. Three diets containing 30% of oil palm fronds (OPF) either untreated (UOPF) or treated with Lentinussajor-caju (FTOPF) with or without urea (FTOPFU) were used as roughage sources in total mixed rations (TMRs). The diets were offered ad libitum and weight gain was determined. At the end of the experimental period, the harvest data and carcass characteristics of the goats were recorded, and muscular longissimus dorsi composition was determined. Results: No significant effect of fungal treated (FT) inclusion was observed in any of the feed intake, growth performance, and carcass characteristics. Likewise, no apparent effects on carcass composition and muscle chemical composition were detected in this study, except for hind leg and chump were affected (p<0.05) by FT inclusion. Conclusion: In conclusion, feeding of fungal (Lentinussajor-caju) treated oil palm frond in TMR diet did not affect performance and carcass characteristics in finishing goats.
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문제 정의
Therefore, the objective of this study was to determine the effects of feeding FTOPF, as a roughage source in total mixed ration (TMR) diet, on growth performance, carcass characteristics, and meat quality of finishing goats.
가설 설정
1) Carcass composition = as a percentage of chilled carcass weight.
제안 방법
All animals were fed diet ad libitum twice daily in two equal portions at 0800 and 1600 h for 90 days. The amount of TMR offered and refused were recorded daily from each goat and feed offering was adjusted to ensure approximately 10% of refusals after feeding, whereas during the last 7 days, the animals were moved to metabolism crates for total tract DM digestibility.
Eighteen growing crossbred male goats (Thai Native×Anglo Nubian) with 18.7±2.0 kg of initial body weight (BW) were stratified and blocked by BW in a randomized complete block design.
The average daily gain (ADG) was determined by dividing BW gain (initial full BW – final full BW) by the number of days in the study.
The experiment was conducted at the Department of Animal Science, the Faculty of Natural Resources, Prince of Songkla University located in Songkhla Province, Thailand. This study lasted for 104 days with 14 days for animal adaptation to diets and daily management and 90 days for data collection. All procedures involving animals were approved by the Ethical Principles for the Use of Animals for Scientific Purposes of the National Research Council of Thailand (NRCT) for the metabolism study and finishing study
대상 데이터
The muscular longissimus dorsi (LD) area was made on the left cut surface (of the chilled carcass) between rib 12 and 13. The LD (the section between the last lumbar and the first sacral vertebrae) were collected. These cuts of meat and two per animal were labeled and frozen immediately after collection for later measurement of the chemical composition, meat color, and shear force characteristics.
The experiment was conducted at the Department of Animal Science, the Faculty of Natural Resources, Prince of Songkla University located in Songkhla Province, Thailand. This study lasted for 104 days with 14 days for animal adaptation to diets and daily management and 90 days for data collection.
데이터처리
Treatment means were statistically compared using Duncan’s multiple range test [9] to identify differences between means.
이론/모형
All data were analyzed using SAS (Cary, NC, USA) software. The MIXED procedure was used to analyze the fixed effects of treatment and block on performance and carcass characteristics, with animal serving as the experimental unit. Orthogonal contrasts were used to determine the effect of UOPF vs the average of all diets containing FTOPF.
성능/효과
Likewise, carcass length, carcass width, Longissimus muscle (LM) area, and Warner-Bratzler shear force (WBSF) were not affected by FT inclusion in the diets as compared with UOPF, except for carcass length being significantly (p<0.05) lower in FTOPFU as compared with UOPF and tended to be lower in the FT fed groups (p = 0.07) likely because of numerically decreased intakes.
No significant differences attributable to dietary treatment were observed in DM, OM, CP, and NDF intakes, except for intake of ADF was significantly (p<0.05) lower in FTOPFU as compared with UOPF and tended to be lower in the FT fed groups (p = 0.03) likely because of numerically decreased intakes.
후속연구
Based on the experimental data, treatment of FTOPF had no significant effect on any of feed intake, DM, OM, ash digestibility, the growth performance, carcass, and meat quality traits studies. However, these findings should be applied further in growing goat experiments in order to feed FTOPF ad libitum with concentrate supplementation.
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