High rumen degradable starch decreased goat milk fat via trans-10, cis-12 conjugated linoleic acid-mediated downregulation of lipogenesis genes, particularly, INSIG1

Table 2 Concentration of major fatty acids in the milk of goats fed different RDS diets

FAs, g/100 g of total FAs	Treatment^d			SEM^e	P-value
FAs, g/100 g of total FAs	LRDS	MRDS	HRDS	SEM^e	P-value
C4:0	0.98	1.15	1.10	0.10	0.806
C6:0	1.55	1.68	1.33	0.12	0.524
C8:0	2.04	2.40	1.94	0.16	0.487
C10:0	8.11	9.59	8.92	0.51	0.519
C11:0	0.13	0.15	0.13	0.14	0.694
C12:0	4.91	6.51	6.20	0.35	0.142
C13:0	0.13	0.14	0.15	0.01	0.595
C14:0	11.15	13.13	11.09	0.49	0.156
cis-9 C14:1	0.20	0.22	0.23	0.02	0.463
C15:0	0.94	0.97	0.93	0.03	0.829
cis-10 C15:1	0.27	0.26	0.33	0.02	0.145
C16:0	30.14	30.79	31.63	0.81	0.773
cis-9 C16:1	1.23^b	1.15^b	1.48^a	0.05	0.004
C17:0	1.20	1.20	1.39	0.05	0.273
cis-10 C17:1	0.42^b	0.38^c	0.48^a	0.01	<0.001
C18:0	7.48	7.35	6.04	0.37	0.217
cis-9 C18:1	21.11^a	16.25^b	18.33^b	0.62	0.001
trans-9 C18:1	0.27^a	0.21^b	0.19^b	0.01	0.011
trans-10 C18:1	0.17	0.20	0.24	0.02	0.498
trans-11 C18:1	1.04	0.96	0.93	0.04	0.405
cis-9,12 C18:2	2.60	3.00	3.26	0.12	0.078
trans-9,12 C18:2	0.06	0.05	0.06	0.01	0.298
cis-9, trans-11 CLA	1.51	1.42	1.13	0.11	0.362
trans-10, cis-12 CLA	0.02^b	0.06^ab	0.13^a	0.01	0.007
C18:3n-3	0.18	0.13	0.21	0.03	0.414
C18:3n-6	0.10	0.07	0.10	0.01	0.249
SFAs^f	71.78^b	76.65^a	71.89^b	0.82	0.012
MUFAs^g	23.80^a	18.71^c	21.36^b	0.65	0.001
PUFAs^h	4.94	5.07	5.34	0.19	0.713

^a-c Means within the same row with different superscripts differ significantly (P < 0.05)
^dTreatments were the LRDS diet (RDS = 20.52%), MRDS diet (RDS = 22.15%), and HRDS diet (RDS = 24.88%) with similar total starch contents
^eSEM Standard error of mean
^fSFAs Saturated fatty acids
^gMUFAs Monounsaturated fatty acids
^hPUFAs Polyunsaturated fatty acids

ISSN: 2049-1891