Is hepatic lipid metabolism of beef cattle influenced by breed and dietary silage level?

da Costa, Ana Sofia Henriques; Bessa, Rui José Branquinho; Pires, Virgínia Maria Rico; Rolo, Eva Alves; Pinto, Rui Manuel Amaro; Andrade Fontes, Carlos Mendes Godinho; Prates, José António Mestre

doi:10.1186/1746-6148-10-65

BMC Veterinary Research

Table 2 Total fatty acids and fatty acid composition of liver from Alentejana and Barrosã bulls fed high or low silage diets ^1-3

From: Is hepatic lipid metabolism of beef cattle influenced by breed and dietary silage level?

	Alentejana				Barrosã				Pvalue
	HS	SE	LS	SE	HS	SE	LS	SE	Breed	Diet	Breed × Diet
Total fatty acids	1.98	0.02	1.98	0.02	2.05	0.02	2.04	0.03	0.007	0.816	0.858
Fatty acids
14:0	0.49	0.04	0.46	0.05	0.51	0.05	0.58	0.07	0.204	0.701	0.425
14:1c9	0.29	0.02	0.20	0.05	0.28	0.02	0.19	0.02	0.795	0.008	0.852
15:0	0.23	0.01	0.18	0.02	0.22	0.02	0.21	0.01	0.573	0.039	0.229
16:0	9.59	0.45	9.43	0.55	9.42	0.32	11.35	0.90	0.154	0.150	0.091
16:1c7	0.23	0.01	0.25	0.02	0.24	0.01	0.30	0.05	0.266	0.192	0.494
16:1c9	0.53	0.07	0.54	0.07	0.55	0.05	0.78	0.12	0.126	0.161	0.163
17:0	1.08	0.02	1.05	0.05	1.07	0.05	0.96	0.04	0.244	0.084	0.311
17:1c9	0.31	0.03	0.29	0.02	0.29	0.01	0.31	0.03	0.910	0.907	0.555
18:0	33.66	0.49	33.57	0.96	33.24	0.51	33.16	1.09	0.614	0.919	0.997
18:1 t6-t8	0.05	0.00	0.07	0.01	0.05	0.00	0.06	0.00	0.647	0.010	0.922
18:1 t9	0.06	0.00	0.08	0.00	0.06	0.00	0.09	0.01	0.333	<0.001	0.382
18:1 t10	0.07	0.00	0.16	0.02	0.07	0.00	0.11	0.01	0.068	<0.001	0.060
18:1 t11	0.86	0.07	0.97	0.09	1.09	0.11	1.11	0.07	0.049	0.484	0.644
18:1 t12	0.37	0.02	0.43	0.03	0.37	0.01	0.44	0.03	0.794	0.019	0.792
18:1c9	11.42	0.69	10.86	0.52	11.11	0.30	12.91	0.89	0.186	0.345	0.078
18:1c11	1.58	0.06	1.78	0.13	1.55	0.05	1.99	0.20	0.516	0.022	0.370
18:1c12	0.28	0.02	0.27	0.02	0.25	0.02	0.31	0.03	0.775	0.224	0.106
18:1c13	0.10	0.01	0.13	0.01	0.10	0.01	0.13	0.01	0.964	0.010	0.792
18:1 t16 + c14	0.10	0.01	0.10	0.01	0.09	0.00	0.11	0.01	0.873	0.567	0.197
18:2n-6	16.16	0.87	17.08	1.17	16.32	0.51	14.67	1.02	0.235	0.694	0.174
18:3n-3	1.24	0.08	0.80	0.06	1.21	0.05	0.73	0.06	0.465	<0.001	0.796
CLA (c9t11)	0.37	0.02	0.28	0.03	0.48	0.04	0.44	0.06	0.001	0.098	0.453
20:0	0.12	0.01	0.13	0.02	0.13	0.01	0.14	0.01	0.389	0.363	0.859
20:1c11	0.09	0.01	0.11	0.01	0.13	0.01	0.12	0.01	0.010	0.466	0.273
20:2n-6	0.30	0.03	0.30	0.04	0.30	0.02	0.25	0.03	0.362	0.446	0.312
20:3n-9	0.39	0.03	0.33	0.03	0.77	0.04	0.78	0.04	<0.001	0.462	0.336
20:3n-6	2.43	0.21	2.76	0.29	2.54	0.25	2.64	0.25	0.982	0.383	0.636
20:4n-6	9.24	0.18	9.39	0.23	9.00	0.19	7.96	0.56	0.022	0.196	0.088
20:5n-3	0.42	0.02	0.25	0.02	0.37	0.02	0.26	0.02	0.412	<0.001	0.279
22:4n-6	1.64	0.10	2.26	0.21	1.86	0.12	1.97	0.22	0.839	0.042	0.145
22:5n-3	2.93	0.14	2.60	0.14	3.03	0.07	2.11	0.21	0.204	<0.001	0.056
22:6n-3	1.28	0.10	0.79	0.06	1.06	0.05	0.70	0.08	0.044	<0.001	0.393
23:0	0.21	0.04	0.13	0.02	0.22	0.02	0.16	0.02	0.494	0.009	0.753
Other⁴	1.90	0.06	1.99	0.10	2.01	0.08	2.01	0.10	0.435	0.604	0.606
Partial sums
SFA	45.38	0.24	44.95	0.63	44.82	0.25	46.55	0.96	0.393	0.292	0.087
MUFA	14.83	0.83	14.43	0.75	14.50	0.38	17.03	1.28	0.205	0.231	0.106
TFA	1.89	0.11	2.07	0.15	2.21	0.16	2.36	0.12	0.033	0.233	0.896
PUFA	36.01^b	0.83	36.56^b	0.85	36.46^b	0.37	32.05^a	1.55	0.055	0.066	0.021
n-3 PUFA	5.87	0.25	4.43	0.20	5.67	0.12	3.79	0.31	0.082	<0.001	0.349
n-6 PUFA	29.75^ab	0.77	31.80^b	0.82	30.02^ab	0.31	27.48^a	1.30	0.030	0.778	0.015
n-3 LCPUFA	4.63	0.24	3.64	0.22	4.46	0.12	3.06	0.28	0.107	<0.001	0.368
n-6 LCPUFA	13.59	0.30	14.72	0.57	13.70	0.42	12.81	0.83	0.124	0.835	0.087

SFA = sum of 14:0, 15:0, 16:0, 17:0, 18:0, 20:0 and 23:0; MUFA = sum of 14:1c9, 16:1c7, 16:1c9, 17:1c9, 18:1c9, 18:1c11, 18:1c12, 18:1c13, and 20:1c11; TFA = sum of 18:1 t6-t8, 18:1 t9, 18:1 t10, 18:1 t11, 18:1 t12, 18:1 t16 + c14 and 18:2c9t11; PUFA = sum of 18:2n-6, 18:3n-3, 20:2n-6, 20:3n-9, 20:3n-6, 20:4n-6, 20:5n-3, 22:4n-6, 22:5n-3 and 22:6n-3.
¹Means in the same row with different superscripts are significantly different (P < 0.05).
²Total fatty acids are expressed as g/100 g liver; fatty acid composition is expressed as mol% fatty acids.
³HS: high silage; LS: low silage.
⁴Other = sum of i-15:0, a-15:0, i-16:0, i-17:0, a-17:0 and dimethylacetals (16:0 DMA and 18:0 DMA).

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ISSN: 1746-6148

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