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. 2021 Apr 6;11(4):1035. doi: 10.3390/ani11041035

Table 8.

Feed apparent metabolizable energy values and apparent fatty-acid digestibility coefficients along the intestinal tract and excreta according to different fat sources in the diet in 35-d-old broiler chickens.

Item Dietary Treatments 1 SEM 4 p-Value
S6 S4-PA2 S2-PA4 PA6 P6
AME, kcal/kg 2 3364 a 3379 a 3212 bc 3121 c 3279 ab 32.48 <0.001
Upper Jejunum 3
TFA 0.48 ab 0.53 a 0.32 ab 0.29 b 0.51 a 0.052 0.005
SFA 0.21 b 0.46 ab 0.26 ab 0.25 ab 0.48 a 0.062 0.009
MUFA 0.60 ab 0.66 ab 0.52 ab 0.50 b 0.67 a 0.042 0.015
PUFA 0.51a 0.49a 0.20bc 0.06c 0.34ab 0.063 <0.001
Lower Jejunum 3
TFA 0.81 a 0.78 a 0.65 b 0.62 b 0.69 b 0.021 <0.001
SFA 0.73 ab 0.76 a 0.59 c 0.55 c 0.64 bc 0.031 <0.001
MUFA 0.85 a 0.84 a 0.76 b 0.77 b 0.83 a 0.016 <0.001
PUFA 0.81 a 0.76 a 0.62 b 0.54 b 0.56 b 0.031 <0.001
Upper Ileum 3
TFA 0.89 a 0.89 a 0.77 bc 0.72 c 0.82 b 0.015 <0.001
SFA 0.85 a 0.86 a 0.67 bc 0.61 c 0.77 ab 0.030 <0.001
MUFA 0.91 a 0.91 a 0.85 b 0.84 b 0.91 a 0.008 <0.001
PUFA 0.90 a 0.90 a 0.82 b 0.77 c 0.78 c 0.008 <0.001
Lower Ileum 3
TFA 0.92 a 0.92 a 0.82 b 0.76 c 0.84 b 0.010 <0.001
SFA 0.90 a 0.90 a 0.71 c 0.64 d 0.78 b 0.017 <0.001
MUFA 0.93 a 0.93 a 0.88 b 0.88 b 0.93 a 0.006 <0.001
PUFA 0.93 a 0.93 a 0.87 b 0.85 b 0.83 b 0.013 <0.001
Excreta 3
TFA 0.93 a 0.92 a 0.84 b 0.72 c 0.84 b 0.009 <0.001
SFA 0.87 a 0.87 a 0.76 b 0.59 c 0.77 b 0.016 <0.001
MUFA 0.93 a 0.93 a 0.89 b 0.85 c 0.92 a 0.005 <0.001
PUFA 0.94 a 0.94 a 0.90 b 0.82 c 0.84 c 0.009 <0.001

Abbreviations: AME, apparent metabolizable energy; TFA, total fatty acids; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids. 1 Values are pooled means of 6 replicates from chickens fed diets supplemented with 6% of soybean oil (S6), palm fatty acid distillate (PA6), palm oil (P6), or oil blends with 4% soybean oil and 2% palm fatty acid distillate (S4-PA2) or 2% soybean oil and 4% palm fatty acid distillate (S2-PA4). 2 Values are pooled means of 6 replicates with 4 chickens/replicate. 3 Values are pooled means of 6 replicates with 2 chickens/replicate. 4 SEM = standard error of the mean. a–d: means in a row not sharing a common letter are significantly different (p < 0.05).