Effect of mixing at weaning and nutrient density of the weaner diet on growth performance and welfare of pigs to slaughter

González-Solé, Francesc; Camp Montoro, Jordi; Solà-Oriol, David; Pérez, José Francisco; Lawlor, Peadar G.; Boyle, Laura A.; Garcia Manzanilla, Edgar

doi:10.1186/s40813-023-00334-w

Table 1 Experimental diets offered to the animals included in the trial

From: Effect of mixing at weaning and nutrient density of the weaner diet on growth performance and welfare of pigs to slaughter

	Experimental diets ¹
	Starter		Link		Weaner		Finisher
Item	CON	LOW	CON	LOW	CON	LOW
Ingredients, %
Barley	5.0	5.0	6.8	59.3	49.6	73.7	41.1
Maize	23.1	37.7	30.0	-	-	-	-
Wheat	-	-	10.0	6.2	21.7	6.0	39.0
Soybean meal 48%	14.3	10.1	18.7	11.3	16.3	14.1	16.5
Full fat soya	13.1	10.0	7.0	10.0	5.0	3.0	1.1
Whey permeate (Lactoflo)	20.0	20.0	15.0	7.5	-	-	-
Skim dried milk	12.5	12.5	5.0	-	-	-	-
Soya oil	8.50	1.38	3.82	1.60	4.00	-	-
Lysine HCl 78.8%	0.622	0.606	0.672	0.736	0.593	0.523	0.427
DL-Methionine	0.362	0.300	0.318	0.296	0.217	0.168	0.100
L-Threonine	0.364	0.329	0.342	0.354	0.271	0.230	0.190
L-Tryptophan	0.140	0.134	0.127	0.113	0.057	0.045	0.022
L-Valine	0.129	0.107	0.126	0.152	0.062	0.017	-
Limestone flour	0.700	0.700	0.750	0.900	1.050	1.050	1.100
Salt	0.300	0.300	0.300	0.300	0.300	0.300	0.300
Mono Dicalcium Phosphate	0.550	0.550	0.700	0.900	0.550	0.550	0.100
Vitamin-Mineral Premix nursery ²	0.300	0.300	0.300	0.300	0.300	0.300	-
Vitamin-Mineral Premix finisher ³	-	-	-	-	-	-	0.100
Phytase	0.010	0.010	0.010	0.010	0.010	0.010	0.010
Calculated composition
Dry Matter, %	91.1	90.0	89.4	88.2	87.8	87.2	87.3
Net Energy (NE), MJ/kg	12.06	10.85	10.94	9.85	10.3	9.27	9.80
Ash, %	6.23	5.98	5.65	5.42	4.70	4.76	4.05
Protein, %	20.0	18.0	19.0	17.1	17.7	16.6	16.7
Ether Extract, %	12.18	5.03	6.82	4.73	6.34	2.18	2.66
Neutral Detergent Fiber, %	6.05	6.85	8.08	13.99	13.99	16.15	14.02
Calcium, %	0.819	0.801	0.754	0.767	0.737	0.730	0.652
Total P, %	0.586	0.581	0.567	0.584	0.489	0.497	0.389
Digestible P, %	0.462	0.459	0.423	0.423	0.332	0.336	0.246
Na, %	0.340	0.341	0.263	0.182	0.131	0.131	0.132
Cl, %	0.914	0.916	0.736	0.556	0.352	0.355	0.317
Standard ileal digestible amino acids
Lys, %	1.528	1.375	1.414	1.272	1.200	1.080	1.000
Met, %	0.680	0.603	0.591	0.513	0.447	0.389	0.324
Cys, %	0.238	0.226	0.258	0.254	0.276	0.264	0.279
Met + Cys, %	0.917	0.825	0.848	0.763	0.720	0.648	0.600
Thr, %	0.993	0.894	0.919	0.827	0.780	0.702	0.671
Trp, %	0.336	0.303	0.311	0.280	0.240	0.216	0.200
Val, %	0.963	0.866	0.891	0.802	0.756	0.680	0.666
Amino acids/Lys ratio
Lys, %	100	100	100	100	100	100	100
Met, %	45	44	42	40	37	36	32
Cys, %	16	16	18	20	23	24	28
Met + Cys, %	60	60	60	60	60	60	60
Thr, %	65	65	65	65	65	65	67
Trp, %	22	22	22	22	20	20	20
Val, %	63	63	63	63	63	63	67

¹ Starter diet (d0 to d11 post-weaning, 8.5 to 11.5 kg average BW); Link diet (d12 to d22 post-weaning, 11.5 to 16 kg average BW); Weaner diet (d23 to d46 post-weaning, 16 to 31.5 kg average BW); Finisher diet (growing-finishing period, 31.5 to 116.5 kg average BW).
² Premix provided per kilogram of complete diet: Cu from copper sulphate, 100 mg; Fe from ferrous sulphate monohydrate, 90 mg; Mn from manganese oxide, 47 mg; Zn from zinc oxide, 120 mg; I from potassium iodate, 0.6 mg; Se from sodium selenite, 0.3 mg; vitamin A as retinyl acetate, 2.1 mg; vitamin D3 as cholecalciferol, 25 µg; vitamin E as DL-alpha-tocopheryl acetate, 100 mg; vitamin K, 4 mg; vitamin B12, 15 µg; riboflavin, 2 mg; nicotinic acid, 12 mg; pantothenic acid, 10 mg; choline chloride, 250 mg; vitamin B1, 2 mg; and vitamin B6, 3 mg.
³ Premix provided per kilogram of complete diet (Diet 4, finisher): Cu from copper sulphate, 15 mg; Fe from ferrous sulphate monohydrate, 24 mg; Mn from manganese oxide, 31 mg; Zn from zinc oxide, 80 mg; I from potassium iodate, 0.3 mg; Se from sodium selenite, 0.2 mg; vitamin A as retinyl acetate, 0.7 mg; vitamin D3 as cholecalciferol, 12.5 µg; vitamin E as DL-alpha-tocopheryl acetate, 40 mg; vitamin K, 4 mg; vitamin B12, 15 µg; riboflavin, 2 mg; nicotinic acid, 12 mg; pantothenic acid, 10 mg; vitamin B1, 2 mg; vitamin B6, 3 mg.

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ISSN: 2055-5660

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