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Fig 1. The relationship between dietary tryptophan levels and
gain of Chinese goslings during 0 to 4 weeks of age.
Y1¡×2786x¡Ï660(P¡Õ0.05, r¡×0.91)
Y2¡×-702x¡Ï1455(P¡Õ0.05, r¡×0.69)
Fig 2. The relationship between dietary tryptophan levels and
feed¡þgain of Chinese goslings during 0 to 4 weeks of age.
Y1¡×-0.867X¡Ï1.86(P¡Õ0.05, r¡×0.91)
Y2¡×0.797X¡Ï1.39(P¡Õ0.05, r¡×0.69)
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Compostition | Exp1 | Exp2 | Exp3 |
Ingredient, % Yellow corn, ground Soybean meal Corn gluten meal, CP60% Soybean oil Lard Glucose Soybean protein Gelatin Cellulose Salt Choline chloride, 50% Limestone, pulverized Dicalcium phosphate Vitamin premixa Mineral premixb DL-Methionine L-Lysine-HCL Calculated value Crude protein, % Metabolizable energy, kcal/kg Tryptophan, % Niacin, ppm Analyzed value Crude protein, % Tryptophan, % |
¡@ 59.5 35.2 - - 2.0 - - - - 0.3 0.1 0.7 1.7 0.3 0.2 0.1 - ¡@ 19.95 2903 0.27 23 ¡@ 19.5 0.25 |
¡@ 55.0 11.0 - 1.0 - 13.0 3.0 10.0 2.2 0.3 0.15 1.3 2.0 0.3 0.2 0.3 - ¡@ 20.56 2984 0.16 16 ¡@ 21.2 0.15 |
¡@ 62.5 5.0 21.0 - 1.0 - - - 7.0 0.3 0.15 1.2 1.8 0.3 0.2 0.08 0.45 ¡@ 20.4 3040 0.14 27 ¡@ 20.7 0.12 |
a,b Supplied per 100 kilogram of diet: Vitamin A 600,000 IU ; Vitamin D3 ; 100,000 IU ; Vitamin E 1,200 IU ; Vitamin K3 0.1g ;Vitamin B1 0.23g ; Vitamin B2 0.4g ; Vitamin B6 0.6g ; Vitamin B12 1mg ; Biotin 20 mg ; Folacin 100mg ; Pantothenic acid 1.2g ; Fe 30mg ; Cu 10mg ; Mn 80mg ; Zn 46mg ; Se 0.15mg ; I 1mg. |
ªí3. ¹}³µÒÆP»Ä§t¶q¹ïÂúµØÃZ¥Íªø©Êª¬¤§¼vÅT(¸ÕÅç¤@)
Item | ¡@ Added Total |
Niacin in diet, ppm | S.E | ||||||
0 23 |
15 38 |
30 53 |
45 68 |
60 83 |
75 98 |
90 113 |
|||
Feed intake, g¡þgird Gain, g¡þbird Feed¡þgain |
3878 1876 2.17ab |
3934 1820 2.16a |
4012 1862 2.15a |
4018 1932 2.08ab |
3668 1829 2.00ab |
3710 1876 1.96b |
4082 1932 2.11ab |
119 24 0.04 |
|
a,b¡GData with different superscripts in the same row differ(P¡Õ0.05). |
ªí4. ¹}³µÒÆP»Ä»P¦âÓi»Ä§t¶q¹ï0~4¶gÄÖÂúµØÃZ¥Íªø©Êª¬¤§¼vÅT(¸ÕÅç¤G)
Tryptophan in diet ¢H |
Niacin in diet ppm |
Feed intake g¡þbird |
Gain g¡þbird |
Feed¡þgain |
0.21 0.21 0.26 0.26 0.31 0.31 ¡@ |
61 106 61 106 61 106 S.E |
3039 2782 3027 2842 2936 2833 135.89 |
1418c 1571ab 1683b 1526bc 1550b 1492bc 8.78 |
2.18a 1.78c 1.80bc 1.86bc 1.90b 1.90b 0.03 |
a,b¡GData with different superscripts in the same couumn differ(P¡Õ0.05). |
ªí5. µÒÆP»Ä»P¦âÓi»Ä¹ï0~4¶gÄÖÂúµØÃZ¥Íªø©Ê¯à¤§¥D®ÄÀ³(¸ÕÅç¤G)
Item | ¡@ Added Total |
Niacin in diet, ppm | Tryptophan in diet, ¢H | S.E | |||
45 61 |
90 106 |
0.05 0.21 |
0.1 0.26 |
0.15 0.31 |
|||
Feed intake, g¡þbird Gain, g¡þbird Feed¡þgain |
¡@ | 3019a 1550 1.96a |
2819b 1530 1.84b |
2968 1494b 1.99a |
2859 1521ab 1.84b |
2930 1604a 1.85b |
240.34 17.65 0.03 |
a,b¡GData with different superscripts in the same row differ(P¡Õ0.05). |
ªí6. ¹}³¤¤¦âÓi»Ä§t¶q¹ï0~4¶gÄÖÂúµØÃZ¥Íªø©Êª¬¤Î¦å²M¤¤¦âÓi»Ä§t¶q¤§¼vÅT(¸ÕÅç¤T)
Item | ¡@ Added Total |
Tryptophan in diet and added, ¢H | S.E | |||||
0 0.14 |
0.07 0.21 |
0.14 0.28 |
0.21 0.35 |
0.35 0.42 |
0.42 0.49 |
|||
Feed intake, g¡þbirdx,y Gain, g¡þbirdx,y Feed¡þgain Serum free tryptophan (nmole¡þ100£gl) |
¡@ | 1825b 1050d 1.74a 2.90 |
2029a 1245a 1.68a 3.50 |
1995a 1260a 1.58b 3.29 |
2021a 1208ab 1.75a 3.46 |
1990a 1156bc 1.72a 3.40 |
1970a 1114c 1.77a 3.73 |
113.5 37.8 0.02 0.15 |
a,b¡GData with different superscripts in the same
row differ(P¡Õ0.05). x¡GLinear effect of tryptophan (P¡Õ0.05). y¡GQuadratic effect of tryptophan (P¡Õ0.05). |
¹}®ÆÀç¾iÂø»x(p.73¡ã81)¢w¬I¬fÄÖ.Ò\ªü¨½¡B¤E¤»¦~¤E´Á