. 2022 May 3;100(7):skac158. doi: 10.1093/jas/skac158

Table 6.

Effect of treatments on rates of fat gain and proportions of chemically determined fat at the end of each period

Period	Adaptation	Preliminary			Experimental
Item/Treatment¹	Initial	LO	HI	SEM²	LO	HI	SEM²	E1	E2	E3	SEM²	P0	P30	P60	P90	SEM¹
n	7	7	8		42	44		30	27	27		26	21	19	17
Fat gain in
FFEB, g/d ³	n/a	4.54^a	66.11^b	3.84	66.56^d	57.54^e	4.8	30.73^f	60.65^g	97.00^h	2.93	58.29^j	61.62^jk	72.87^k	55.82^j	6.79
NVEB, g/d ⁴	n/a	2.36^a	47.99^b	3.01	48.32^d	40.43^e	3.46	22.37^f	43.78^g	69.47^h	2.29	41.24^j	43.96^jk	52.11^k	41.05^j	4.95
Viscera, g/d ⁵	n/a	1.50^a	18.11^b	1.95	17.41	17.51	1.55	8.03^f	17.49^g	27.53^h	1.09	17.71^jk	16.22^j	20.76^k	14.78^j	2.15
Fat Deposited in Viscera, % of Total Fat Gain	n/a	3.80	27.29	9.42	25.52^d	30.69^e	1.14	27.25	28.78	28.29	1.49	30.26	26.45	29.13	25.59	1.70
RE Deposited as Fat, % of Total RE⁶	n/a	136.90	86.51	13.38	81.22^d	84.26^e	1.13	78.40^f	84.12^g	86.00^g	1.18	82.54	83.20	85.39	79.14	1.56
Fat in
FFEB, % ³	14.91^a	17.45^a	22.36^b	0.86	23.53^d	26.89^e	0.60	21.87^f	25.88^g	28.50^h	0.62	25.04^j	25.49^j	27.20^k	23.06^j	0.88
NVEB, %⁴	15.56^a	16.97^a	21.95^b	0.81	23.46^d	26.49^e	0.57	21.89^f	25.46^g	28.35^h	0.58	24.97^j	25.22^jk	27.01^k	23.03^j	0.85
Viscera, %⁵	18.88^a	24.57^ab	31.25^b	2.03	30.63^d	37.32^e	0.92	29.18^f	34.79^g	38.93^h	1.05	34.21^jk	34.56^j	36.95^k	30.40^j	1.40

LO, low level of feeding during preliminary period; HI, high level of feeding during preliminary period; E1, E2, and E3, ad libitum intake of feed with M/D of 7.8, 9.2, and 10.7 MJ/kg DM, respectively.

Average of values of standard error of the mean (SEM) for levels within each comparison.

FFEB, fleece-free empty body.

NVEB, non-visceral empty body, defined as the sum of the weights of the carcass, blood, wool-free skin, head, and feet.

Viscera: sum of liver, kidneys, pluck (heart and lungs), the empty gut, gallbladder, spleen, and pancreas, including dissectible internal fat (sum of kidney and omental fat).

RE, retained energy (MJ).

Unlike superscripts within timepoints and main effects differ (P<0.05). Data shown are unadjusted means reported by kill and main effect of nutritional history or energy (effect of RUP not shown, no significant effects, P > 0.05.