Table 7 Effects of gestation supplement treatment, lactation diet, and parity on milk yield and composition of Alpine goats during four 4-wk periods^1,*.

From: Interaction between gestational plane of nutrition and lactation diet composition on lactation performance of Alpine goats of different parities

Item²	PY	PD	Moderate GS		High GS		SEM	Period				SEM	Parity		SEM
Item²	PY	PD	Mod LD	High LD	Mod LD	High LD	SEM	1	2	3	4	SEM	1	2	SEM
Concentration
Fat (%)			3.81	4.14	3.85	3.77	0.132	4.78^c	3.91^b	3.39^a	3.49^a	0.103	4.06^b	3.72^a	0.093
		1	4.54^de	5.04^e	4.61^de	4.93^e	0.205
		2	3.93^bc	4.16^cd	4.13^cd	3.41^ab
		3	3.49^ab	3.45^ab	3.16^a	3.47^ab
		4	3.29^a	3.92^bc	3.51^ab	3.25^a
Protein (%)			2.49	2.50	2.47	2.49	0.047	2.86^c	2.40^b	2.21^a	2.48^b	0.043	2.54^b	2.43^a	0.033
	1							2.94^c	2.54^b	2.17^a	2.51^b	0.061
	2							2.78^c	2.26^a	2.24^a	2.45^b
Lactose (%)			4.17	4.26	4.18	4.26	0.046	4.33^c	4.19^ab	4.07^a	4.28^bc	0.046	4.26	4.18	0.032
	1							4.40^c	4.33^c	4.00^a	4.30^bc	0.065
	2							4.25^bc	4.05^a	4.14^ab	4.27^bc
TS (%)			11.2	11.6	11.2	11.3	0.18	12.7^c	11.2^b	10.4^a	11.0^b	0.17	11.6^b	11.1^a	0.13
	1							13.0^e	11.8^cd	10.3^a	11.3^bc	0.23
	2							12.3^d	10.6^ab	10.5^a	10.8^ab
		1	12.1^fg	13.0^h	12.4^gh	13.2^h	0.33
		2	11.3^c-f	11.8^efg	11.5^def	10.4^abc
		3	10.6^a-d	10.3^ab	9.9^a	10.7^a-d
		4	10.7^a-d	11.4^def	11.0^b-e	10.8^a-d
GE (MJ/kg)			2.74	2.89	2.75	2.74	0.060	3.23^d	2.76^c	2.50^a	2.63^b	0.049	2.86	2.69	0.042
		1	3.08^fgh	3.35^h	3.14^gh	3.35^gh	0.099
		2	2.78^cde	2.90^efg	2.85^ef	2.50^abc
		3	2.56^a-d	2.49^ab	2.38^a	2.56^a-d
		4	2.55^a-d	2.80^de	2.65^b-e	2.54^a-d
SCC (× 1000)			2.38	1.52	1.78	1.29	0.314	1.83	1.89	1.47	1.78	0.262	1.85	1.63	0.221
Yield
Milk (g/day)			2224	2594	2390	2446	172.8	2404^b	2637^c	2460^b	2153^a	90.9	2059^a	2767^b	121.6
		1						1965^a	2190^b	2122^b	1960^a	127.8
		2						2844^c	3083^d	2797^c	2346^b
Fat (g/day)			84	106	91	91	6.6	113^d	101^c	83^b	73^a	3.9	84^a	102^b	4.6
	1							98^cd	91^bc	73^a	73^a	5.5
	2							128^e	111^d	94^c	76^ab
		1	99^def	129f.	110^ef	114f.	7.8
		2	90^b-e	117f.	104^def	93^cde
		3	80^abc	90^b-e	76^abc	86^a-d
		4	65^a	88^bcd	73^abc	72^ab
Protein (g/day)			55	64	58	60	3.9	68^c	62^b	54^a	53^a	2.2	52^a	66^b	2.7
	1							58^b	55^b	46^a	49^a	3.1
	2							78^d	69^c	63^b	57^b
Lactose (g/day)			92	110	100	104	5.5	104^b	110^c	101^b	92^a	4.0	88^a	116^b	5.1
	1							89^a	95^b	85^a	85^a	5.6
	2							121^cd	124^d	117^c	100^b
TS (g/day)			246	300	266	273	18.5	301^c	291^c	256^b	236^a	10.3	238^a	304^b	13.0
	1							256^bc	258^bc	218^a	221^a	14.5
	2							346^e	325^d	294^c	251^ab
GE (MJ/day)			6.02	7.42	6.51	6.63	0.453	7.65^d	7.16^c	6.15^b	5.62^a	0.256	5.89^a	7.40^b	0.319
	1							6.54^bc	6.39^bc	5.28^a	5.35^a	0.360
	2							8.75^e	7.93^d	7.02^c	5.90^ab
GE:DMI (MJ/kg)			2.73	3.23	2.92	3.09	0.203	3.94^c	3.02^b	2.52^a	2.48^a	0.124	2.89	3.09	0.143

¹GS = gestation supplement treatment; LD = lactation diet treatment; Mod = Moderate; PY = parity (1 or 2 = ≥ 2); PD = period.
²TS = total solids; GE = gross energy (MJ/kg); SCC = log somatic cell count; DMI = dry matter intake (kg/day).
^{a,b,c,d,e,f,g,h}Means within a grouping without a common superscript letter differ (P < 0.05).
*Mean values of main effects are presented when there were no significant interaction effects (P > 0.05) involving the main effects. Otherwise, data are presented showing interaction effect (P < 0.05) or significant main effects (P < 0.05).

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Table 7 Effects of gestation supplement treatment, lactation diet, and parity on milk yield and composition of Alpine goats during four 4-wk periods^1,*.

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