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³oºØ©MÂû¦³Ãö¤§³J®ò»Ä©MºëÓi»Äªº´á¯À¸`¬ù§@¥Î¡A¹ï©óÁT«K¤¤ªº´á¯À±Æªn¨S¦³¼vÅT(»P®ø¤Æ²vµLÃö)¡C¦ý¥Ñ©ó§¿¤¤´á¯À±Æªn´î¤Ö¡A´á¯Àªº¶i¥X´N±o¥H§ïµ½¡C(ªí¤@)ªí¥Ü§¿´á¯À±Æªnªº´î¤Ö¡A¥i¥H¥Î§¿»ÄºA´á¯Àªº´î¤Ö¨Ó»¡©ú¡C(ªí¤G)ªí¥Ü¥H¥¼¥[³J¥Õ½è¹}®ÆÁý¾iªºÂû¡AÁý¹³J®ò»Ä©Mºë®ò»Ä¡A«h§¿»Ä§Î¦¨³Q§í¨î¡C§¿»Ä±Æªn´N´î¤Ö¡A´á¯Àªº¶i¥X´N¥i¥H³Q§ïµ½¡C
ªí¤@ Nitrogen balance of colostomized cocks fed a protein-free diet with
or without methionine plus arginine or glutamic acid
Amino acid supplement |
N intake |
N excreted |
N balance |
||||
Fecal N |
Urinary N |
||||||
Mg N¡þbird¡þ3 days |
|||||||
None (PF) 1.48¢H Glu (G) 0.3¢HMet¡Ï0.424¢HArg (MA) Pooled SE |
89.6 243.2 234.4 ¢w |
126.4 146.6 140.8 8.0 |
a a a |
729.8 891.7 548.3 71.2 |
a , b a b |
- 766.5 - 795.1 - 454.0 69.5 |
a a b |
¡@
ªí¤G Effect of methionine plus arginine supplementation on excretion of nitrogenouscompounds in urine of colostomized cocks fed a protein-free diet
Amino acid supplement |
Total N |
Uric acid N |
Ammonia N |
Urea N |
Total Cre-atinine N |
Undeterm-ined N |
||||||
¡@ | Mg N ¡þ bird ¡þ 5 days |
|||||||||||
None (PF) 1.48¢H Glu (G) 0.3¢HMet¡Ï0.424¢HArg (MA) Pooled SE |
729.8 891.7 548.3 71.2 |
a , b a b |
507.8 674.8 356.5 62.4 |
a , b a b |
121.0 132.2 106.0 12.4 |
a a a |
29.4 25.5 50.4 7.4 |
a a a |
46.1 42.9 32.8 4.1 |
a a a |
25.5 16.4 2.7 19.9 |
a a a |
excretion in chicks fed a protein-free diel with or without methi-onine and arginine (experiment 3)
Amino acid supplement |
Energy intake 3 |
Body weight change 2 |
excretion N |
balance N |
Uric acid Ncxcrction |
||||
g¡þ100g BW¡þ10 days |
Mg¡þ100g BW¡þday |
||||||||
None (PF) ¡@ Met¡ÏArg (MA) ¡@ Pooled SE (Energy)2 (AAs)4 |
100¢H 75¢H 50¢H 100¢H 75¢H 50¢H |
- 28.4 - 31.6 - 34.2 - 22.1 - 25.8 - 31.9 0.6 0.8 |
A B B A B C |
62.1 57.0 67.0 37.7 40.5 84.1 2.2 2.8 |
¡@ ¡@ A A B |
- 59.0 - 54.0 - 64.6 - 29.5 - 32.2 - 75.9 2.3 2.8 |
¡@ ¡@ A A B |
23.8 18.7 29.6 7.3 8.8 31.6 1.5 1.9 |
a a b A A B |
¡@
ªí¥| Changes of tissue nitrogen content in chicks fed equal amounts of a protein-freediet with or without methionine plus arginine (Experiment 2)
Tissue |
Changes in N content |
¢H Change | ||
PF |
Met¡ÏArg |
PF |
Met¡ÏArg |
|
mg N¡þbird¡þ10 days |
¢H |
|||
Feathers Liver Spleen GP 2 Heart Pancreas Intestine Kidney Muscle PFC 3 |
161.8± 5.1 1 - 37.3± 3.1 - 1.6± 0.1 - 38.3± 6.7 - 4.0± 1.0 - 14.6± 0.4 - 31.4± 1.5 - 10.4± 0.9 - 291.4±18.1 - 24.0±32.9 |
174.4±10.0 - 44.6± 2.1 * - 1.3± 0.1 * - 25.4± 4.8 - 0.8± 2.2 - 14.5± 0.6 - 17.6± 2.4** - 11.1± 0.8 - 175.6±25.2** - 31.8±21.7 |
68.9±2.0 - 29.1±2.4 - 56.5±4.1 - 23.7±4.1 - 17.9±4.4 - 59.6±1.5 - 35.2±1.9 - 28.4±2.3 - 29.8±2.0 - 2.8±4.0 |
74.3±4.4 - 34.8±1.6 * - 43.4±3.4 * - 15.6±2.9 - 4.2±9.3 - 59.7±2.7 - 19.5±2.6** - 30.5±2.2 - 17.9±2.5** - 3.9±2.7 |
1¡FMean±SE of 8 birds. 2¡FGlzzard¡ÏProventriculus. 3¡FRemainder feather-free carcass. *,**¡FSignificantly different from the PF group at P¡Õ0.05(*) and P¡Õ0.01(**), respectively.
¡@
ªí¤ Effect of supplementation with methionine alone or in combination with arginine (MA) onfractional turnover rates of protein in the whole-body of chicks fed on a protein-free (PF) diet
(Mean values for five birds except for the PF group being four)
Diet |
Fractional rate |
|||||
Synthesis(¢H¡þd) |
Growth(¢H¡þd) |
Degradation(¢H¡þd) |
||||
Protein-free PF¡Ïmethionine PF¡ÏMA SEM (11 dl) |
11.0 13.5 13.6 0.6 |
b c c |
-2.2 -1.4 -1.1 0.1 |
b c c |
13.2 14.8 14.6 0.7 |
a a a |
¥H«e°Êª«Ói°ò»Än¨D¶q¬O¥Ñ¥Í²£¶q(¨Ò¦pÅ髼W¥[¶q¡B²£§Z¡B²£¨Åµ¥)¬°°ò·Ç¦Ó¨D±o¡C¦ý¤]¥²n¦³¤£¦PÆ[ÂIªº¬Ýªk¡A¨Ò¦p¹ï©ó½Þ¡Bßm¤BÓi»Ä¡B¦âÓi»Äªºn¨D¶q¡AY¥H§K¬Ì¤ÏÀ³¬°°ò·Ç¡A¦³³ø§i«ü¥X¬O¥H¤ñÅ髼W¥[¶q¬°°ò·Çªº®ÉÔÁÙn°ª¡A¹ï©óÂû¤]¬O±qÂ÷Ói»Ä³J®ò»Ä°_¡A¤@¯ëªºÓi°ò»Ä¤]¦³¦P¼Ë±¡§Î¡C³o¼Ëªº³ø§i¡A¤]¶}©l¦³µoªí¡A¤£ºÞ«ç»ò¼Ë¡A¤£³æ³æ¬O¥H¥Í²£¬°°ò·Ç¡C¥H§K¬Ìµ¥ªº°·±d¬°°ò·ÇªºÓi°ò»Än¨D¶qªº¦AÀË°Q¤]¬O¡C±N³oÓ°ÝÃDÂX¤j°_¨Ó¡AÀô¹Òªº¦Ã¬Vµ{«×¡B²M¼äµ{«×©MÓi°ò»Än¨D¶qªºÃö³sµ¥µ¥¤]±N·|Åܦ¨¤µ«áªº°ÝÃD¡Ia.b.c. Means within the same column not sharing a common superscript letter were significantly difierent
b.c. P¡Õ0.01.
Ói°ò»ÄªºÀç¾i¯S²§©Ê
Mitchell and Block (1946)¡C²Ä¤@¨îÓi°ò»Ä©M¥þ§Z³J¥Õ½è¸Ì§t¦³ªº¸ÓÓi°ò»Äªº¤ñ©M¥Íª«»ù¦³«Ü¤jªº¬ÛÃö¡A¦]¦¹µoªí¤Fchemical scoreªº·§©À¡C³oÓ·Qªk¬O±q¨M©w¤F°Êª«ªºÓi°ò»Ä»Ý¨D¶q¶}©l¡A²Ä¤@¨îÓi°ò»Ä©M¨äÓi°ò»Ä»Ý¨D¶qªº¤ñ·í§@chemical scoreªº°ò¦¡A§@¬°Ói°ò»Ä¸É¥Rªºì²z¡C¤@¯ë¨Ó»¡¡A²z½×©M¹ê»Ú¤Wªº¼Æȱ`¬O¤@Pªº¡C¦ý¬O¦pªG¸Ô²Ó¦a½×z¥¦¡A³æ³æ¥Î³oÓ²z½×ÁÙ¬O¦³«Ü¦h²{¶HµLªk»¡©ú¡C
èè±Ôzªº³J®ò»Ä©Mºë®ò»Äªº´á¯À¸`¬ù§@¥Î¤]µLªk¥Î³oÓ²z½×¨Ó»¡©ú¡CÁÙ¦³¨Ì·Ó³oÓ²z½×¡A¤£½×¨º¤@ºØÓi°ò»Ä§@²Ä¤@¨îÓi°ò»Ä³£¦³¦P¼Ëµ{«×ªº¤í¯Êªº¸Ü¡A¥Íª«»ùÀ³¸Ó¬O¬Û¦Pªº¡A¦ý¬O¤]¦³¤£ºÉ¬O¦p¦¹ªº¨Æ¨Ò¤§³ø§i¡C
µÕì¥ý¥Íµ¥¤HªºµÛ§@¸Ì¡A§â³æ¤@Ói°ò»Ä§Ë¦¨¼Ð·Ç¹}®Æªº60¢H®É¡AÂúÂûªº¼W«±¡§ÎÅã¥Ü¥X¦¨¬°ªí¤»ªº³ø§i¡C¥Ñ¯Ê¥FÓi°ò»ÄªººØÃþ¥iÅã¥Ü¨ä¤ÏÀ³ªº®t²§¡AY¥Hn¨D¶qªº50¢H¡A¨Ï¨ä¯Ê¥F³æ¤@Ói°ò»Ä®Éªºµ²ªG´NÅܦ¨¹³ªí¤C¨º¼Ë¡AÁÙ¬O¨Ì¯Ê¥FÓi°ò»ÄªººØÃþ¡A¨ä¤ÏÀ³¦³©Ò¤£¦P¡C¹³³o¼Ë¨ÌÓi°ò»ÄªººØÃþ¡B¤í¯Ê¡B¹L³Ñªº¼vÅT¤§¬Û²§¡AºÙ§@¡¨Ói°ò»ÄÀç¾i¯S²§©Ê¡¨¡C¦bªí¤C¥iª`·N¨ìºc³y§Î¦¡«Ü¬Û¦ü¡A¦ý¤í¯Ê®É¤§¼vÅTµ{«×¤£¦P¤§¤À§ÁÂêÓi°ò»Ä¡C
¦¹¸û¤£¨ü¤í¯Êµ{«×©Ò¼vÅT¤§¥ÕÓi»Ä¡A¤¤µ¥µ{«×ªºõéÓi»Ä¤í¯Ê¼vÅT¤jªº¦³²§¥ÕÓi»Ä¡C³o¨Ç³æ¤@Ói°ò»Ä¥¦Ì¤í¯Ê25¢H®É©M¤í¯Ê75¢H®Éªº½Õ¬d´N¦p¦Pªí¤K¡A¤í¯Ê25¢H®É(b¡þa)Ói°ò»Ä¶¡¤£¤Ó¦³¦ó®t²§¡A¤í¯Ê75¢H®É¡A(c¡þa)´N¥i¥H²M·¡¦a¬Ý¥XÓi°ò»Ä¶¡ªº®t²§«Ü¤j¡C¤]´N¬O»¡¡AÓi°ò»ÄªºÀç¾i¯S²§©Ê¤í¯Êµ{«×¤pªº®ÉÔ¬O¤£©úÅ㪺¡A¦ý¤í¯Êµ{«×Åܤjªº¸Ü¡AÓi°ò»ÄªºÀç¾i¯S²§©Ê´N·|Åܱo©úÅã¡C
ªí¤» Weight gain, feed consumption and feed efficiency of chicks
fed diets equally deficient in a single amino acid (assay2)1
Amino acid held at 60¢H of RS |
Gain |
Feed consumption |
Gain¡þFeed |
All úl 60¢HRS Methionine¡Ïcystine Leucine Lysine Arginine Histidine Threonine Valine Isoleucine Tryptophan Phenylalanine¡Ïtyrosine None úl RS |
g¡þchick¡þday 8.60±0.562 9.89±0.46 9.72±0.67 9.54±0.51 9.27±0.19 8.24±0.41 7.89±0.44 7.41±0.28 6.12±0.55 5.94±0.16 5.73±0.44 13.16±0.23 |
g¡þchick 112.2 104.1 94.1 102.2 104.9 91.6 96.6 88.9 81.6 77.5 74.7 112.8 |
0.46 0.57 0.62 0.56 0.53 0.54 0.49 0.50 0.45 0.46 0.46 0.70 |
1. Two replicates of 10 male chicks¡þtreatment. 2. Mean±SE of mean.
¡@
ªí¤C Performance of chieks fed on diets deficient in single essential amino acids,and metabolisable energy values of the diets (values are means of five birds for period 8 to 18 d old)
Deficient amino acid |
Weight gain (g) |
Food consumption (g) |
Weight gain |
ME (MJ¡þkg) |
Food eaten |
||||
None Lys Leu Phe¡ÏTyr Met¡ÏCys Trp His Val Arg Thr Ile Pooled SE |
55.8 50.6 45.0 40.4 32.4* 31.2* 27.6* 16.0* 10.2* 6.0* - 3.4* 3.9 |
142.6 132.0 117.8 112.6 122.6 100.8* 104.2 90.2* 76.4* 73.0* 55.8* 6.9 |
0.392 0.383 0.380 0.350 0.261 0.302 0.265 0.168* 0.121* 0.069* - 0.082* 0.032 |
14.23 14.27 13.81 14.18 14.48 14.06 14.06 13.68 14.02 14.10 14.02 0.21 |
* Significantly different from that on the standard diet (P¡Õ0.01).ªí¤K Comparison of the estimated response1 of chicks at
different levels of leucine isolcucine and valine intake
Amino acid content |
Maximum2 (a) |
0.75 of maximum (b) |
0.25 of maximum (c) |
Ratio |
|
b¡þa |
c¡þa |
||||
¡@ | Body weight gain (g¡þd) |
||||
Leucine Isolcucine Valine |
7.05±0.51 7.33±1.02 6.42±0.47 |
6.57±0.45 6.74±0.41 5.90±0.54 |
2.77±0.43 2.02±0.45 1.77±0.61 |
0.93 0.92 0.92 |
0.39 0.27 0.28 |
¡@ | Gain¡Gfood ratio |
||||
Leucine Isolcucine Valine |
0.473±0.031 0.462±0.031 0.486±0.024 |
0.420±0.037 0.430±0.028 0.450±0.029 |
0.202±0.034 2 0.136±0.023 b 0.158±0.034ab |
0.94 0.92 0.93 |
0.43 0.29 0.33 |
Values are means±confidence intervals at 0.95. Means not sharing a common superscript letter differ significantly between amino acids at P¡Õ0.05.
intake and nitrogen and energy balances of chicks from 14 to 24 days of age
under an ad libitum-feeding condition
Amino acid omitted |
Body weight change (g) |
Food intake (g) |
Nitrogen Balance (g) |
Energy balance (kJ) |
||||
None His Lys Trp Leu Phe & Tyr Thr Val Arg Ile Met & Cys All Pooled SEM |
92.2 - 5.6 - 10.8 - 16.6 - 16.6 - 19.8 - 24.0 - 25.4 - 25.6 - 25.8 - 31.4 - 34.6 1.6 |
a* b c d d de ef f f f g g |
217.0 81.0 82.0 80.6 61.6 49.4 60.2 61.2 62.0 39.4 56.4 42.6 5.2 |
a b b b c cde c c c e cd de |
0.228 0.127 - 0.025 - 0.227 - 0.275 - 0.523 - 0.463 - 0.450 - 0.466 - 0.721 - 0.798 0.049 |
a b b c d d e e e e f f |
960 - 83 - 111 - 196 - 312 - 328 - 331 - 336 - 274 - 355 - 302 - 338 25 |
a b b c de de de de d e de de |
ªí¤Q Effect of single essential amino acid deprivation on body weight change and
nitrogen and energy balances of chicks from 14 to 24 days of age under an
equalized-feeding condition.
Amino acid omitted |
Body weight change (g) |
Nitrogen balance (g) |
Energy balance (kJ) |
||
None His Lys Trp Phe & Tyr Leu Ile Val Thr Arg Met & Cys All Pooled SEM |
- 8.0 -11.2 -11.6 -12.6 -14.2 -16.4 -17.0 -17.4 -20.6 -22.8 -24.2 1.3 |
a* b bc bc cd cde de ef ef fg g g |
0.547 0.173 0.023 0.093 -0.112 -0.209 -0.312 -0.385 -0.271 -0.439 -0.513 -0.546 0.045 |
a b c bc d de efg fgh ef ghi hi i |
- 143 - 114 - 97 - 134 - 132 - 202 - 96 - 135 - 112 - 126 - 110 - 85 23 |
Ói°ò»Ä¦bÅ餺¤§®ñ¤Æ¤À¸Ñ²v¡A¤í¯Ê¼vÅT¤jªº³J®ò»Ä©M¤í¯Ê¼vÅT¤pªº²ÕÓi»Ä¡AÆ[¹î¦³¤°»ò¼Ëªº¤£¦P¡A¦b¹ï·Ó¹}®Æ¡A²ÕÓi»Ä¤À¸Ñ¬°¤G®ñ¤ÆºÒªº¤À¸Ñ²v¡AÅã¥Ü¥X¤ñ³J®ò»Ä§Cªº¼ÆÈ¡C¦b¯Ê¥F²ÕÓi»Äªº¹}®Æ¸Ì²ÕÓi»Ä¤À¸Ñ¬°¤G®ñ¤ÆºÒªº¤À¸Ñ³Q§í¨îµÛ¡A¬Û¹ï¦a¡A¦b³J®ò»Ä¤í¯Êªº¹}®Æ¤¤¡AÅã¥Ü¥X¤ñ¹ï·Ó¹}®ÆÁÙ°ªªº¤ñ²v³Q¤À¸Ñ¹³³o¼Ë¡A¦b³J®ò»Ä¤í¯Ê®É¡A®ñ¤Æ¤À¸Ñ¦³Åܦ¨§ó°ªªº¶É¦V¡C¬Û¹ïªº²ÕÓi»Ä¦b¤í¯Ê®É·|§ó²£¥Í§í¨î®ñ¤Æ¤À¸Ñ¤§§@¥Î¡A¨Ï¤í¯Ê²ÕÓi»Äªº¼vÅT§ó¤p¡C¨º»ò³J¥Õ½èªº·s³¯¥NÁ´`Àô³t«×¬O¦p¦ó©O¡H
Åé³J¥Õ½è·s³¯¥NÁ´`Àô©MÓi°ò»ÄÀç¾i
¹ï©ó®a¯b¡AÅé³J¥Õ½èªº¥Í²£¬Oªí¥ÜÅé³J¥Õ½èªº¿n»W¡C±q¥H«e´N¥H´áÄá¨ú¶q»P´á±Æªn¶q¤§®t¨Óµû¦ô¡CÅé³J¥Õ½è¿n»W¶q¬O¦X¦¨¶q´î¤À¸Ñ¶q¤§©w¸q¤U¡AÅé³J¥Õ½è·s³¯¥NÁ´`Àô´ú©w¤~¦³·N¸q¡Cµ¹²£§ZÂû¤À§OÁý¹¤í¯Ê³J¥Õ½è©M¦³³J¥Õ½è¹}®Æ®É¡AÅã¥Ü¥X¦ñÀHµÛ®É¶¡ªº¼Wªø¡AÅé³J¥Õ½è¿n»W¶q¡AÅé³J¥Õ½è¦X¦¨¶q©MÅé³J¥Õ½è¤À¸Ñ¶qªºÅÜ°Ê¡CÅé³J¥Õ½è¦X¦¨¶q©M¤À¸Ñ¶q³£¬O¨Ì¹}®Æ³J¥Õ½è§t¶qªºÅܰʦӧïÅÜ¡A¥i¥H¤F¸Ñ¨ìÅé³J¥Õ½èªº¦X¦¨¶q¨äÅÜ°Ê´T«×¤ñ¸û¤j¡C
ªí¤Q¤@¬Oµ¹²£§ZÂûÁý¹¤í¯Ê³J®ò»Ä©ÎÂ÷Ói»Äªº¹}®Æ®Éªº³J¥Õ½è¦X¦¨¶q¡C¨Ì¤í¯Ê³J®ò»Ä¤§¹}®Æ©Î¬O¤í¯ÊÂ÷Ói»Ä¤§¹}®Æ¡AÅé³J¥Õ½è¦X¦¨¶q·|¦³·N¦a´î¤Ö¡C¨Ì²Õ´§O¨Ó¬Ý¡A¥i¥HÁA¸Ñ¨ì¥Dn§Z³Jªº¦X¦¨³¡¦ì¤l®cªº´î¤Ö³Ì¤j¡CÁ|¤@Ó¤ñ¸û·¥ºÝªº¨Ò¤l¡Aµ¹¤©¦¨ªø¤¤ªºÂú(Âû)Áý¹³J®ò»Ä¡A¯ÖÓi»Ä§¹¥þ¤í¯Êªº¹}®Æ¡A¦pªí¤Q¤G©Ò¥Ü¡A¥þ³¡¨Å餺Åé³J¥Õ½è¦X¦¨²v¬O¹ï·Ó²Õ³Ì°ª¡A¨ä¦¸¬O¤í¯Ê²ÕÓi»Ä¹}®Æ¡A¦A¨ä¦¸¬O¤í¯Ê³J®ò»Ä¥[¯ÖÓi»Ä¹}®Æ³Ì§C¡C ªí11 Effect of methionine or lysine deficiency on protein synthesis and protein synthesisper unit RNA of whole body, liver, magnum and remainder oviduct in laying hens.
Diet |
Expt 1 |
Expt 2 |
||||
Control |
Methionine deficient |
SEM |
Control |
Lysine deficient |
SEM |
|
¡@ | Protein synthesis (g¡þday) |
|||||
Whole-body Liver Magnum Remalnder oviduct |
44.3 7.4 4.0 1.3 |
32.8** 5.6** 2.5** 0.5** |
3 0.4 0.3 0.1 |
44.5 7.4 4.1 1.2 |
30.0** 4.3** 0.8** 0.3** |
0.9 0.4 0.2 0.1 |
¡@ | Protein synthesis per unit RNA (g protein synthesis¡þday per g RNA) |
|||||
Liver Magnum Remainder oviduct |
11.3 12.3 7.2 |
9.4 * 10.1 NS 2.5 ** |
0.5 0.9 0.7 |
11.4 12.4 6.2 |
9.0* 3.8** 2.2** |
0.6 0.6 0.2 |
Number of birds used was 7 per treatment.
Significance level¡G**¡AP¡Õ0.01¡F*¡AP¡Õ0.05¡FNS¡Anot significant.¡@
ªí12 Fractional and absolute protein turnover rates in the whole body of chicks fed
control, histidine-free (-His) or methionine plus cystine-free (-Met, Cys) diets.
Diet |
Fractionaol protein rutnover rate (¢H¡þday) |
Absolute protein turnover (¢H¡þday) |
|||||
Synthesis |
Degradation |
Synthesis |
Degradation |
||||
Control -His -Met, Cys * Pooled SEM |
22.68 16.81 14.80 0.68 |
a b b |
18.04 17.78 18.07 1.11 |
7.26 3.51 2.44 0.24 |
a b c |
3.68 2.98 0.26 |
a b b |
n=6. * One missing value. a.b.c.¡FP¡Õ0.05.¦Ü©ó³J¥Õ½è¤À¸Ñ²v¬O©Ò¦³ªº¹}®Æ³£¤jP¬Û¦Pªº¡C¦]¦¹¡A¥i¤F¸Ñ¡A¥ÎÅé³J¥Õ½è¦X¦¨²v©M¤À¸Ñ²vªº®t©Òªí¥ÜªºÅé³J¥Õ½è¼W¥[²v¬O¡A¨ÌÅé³J¥Õ½è¦X¦¨²vªºÅܰʪºµ²ªG¡C ³J¥Õ½è·s³¯¥NÁ´`Àôªº´ú©w¬O½Þ§â³J¥Õ½è¯S©w¤Æ¡A¥i¥H½Õ¬d¥X¯S²§ªº³J¥Õ½è·s³¯¥NÁªº´`Àô¡C¨Ò¦pÂûµÊŦ§K¬Ì²y³J¥ÕªºIgG¦X¦¨¬O¦ûµÊŦ³J¥Õ½è¦X¦¨¶qªº27¢H¡A¥¦ªº¦X¦¨²v¬O700¢H¡þ¤é¡A¥i¥H¤F¸Ñ¨ì¬O¨ä¥LµÊŦ³J¥Õ½è¦X¦¨¶qªº15¿¡C
±Ä¥ÎÓi°ò»ÄÀç¾i¯S²§©ÊªºÀç¾iµû»ùªk
¥Hªí¤Qªº¸ê®Æ¬°°ò·ÇÅã¥Ü¡A±Ä¥ÎÓi°ò»ÄÀç¾i¯S²§©Ê¥Hchemical scoreÀç¾i»ùµû»ùªk¤§µ²ªG¡C¦b¹Ïªº¾î¶b¤Wªí¥Ü¤í¯Ê¥²¶·ªºÓi°ò»Ä¡A¥HµL³J¥Õ½è¹}®ÆªºÀç¾i·í§@0¡A¼Ð·Ç¹}®ÆªºÀç¾i»ù·í§@100ªº®ÉÔ¡AÅã¥Ü¤í¯Ê¦UºØÓi°ò»Ä¹}®ÆªºÀç¾i»ù¡C±×½u¤Wªº¦UÂIªí¥Ü§¹¥þ¨S¦³¥]§t¦U¶µÓi°ò»Äªº¹}®Æ¤§Àç¾i»ù¡A»P¥ª¶bªº¥æÂI¬OÅ髪ºÅܤơCÓi°ò»Ä·U¥R¨¬¡AÀç»ù·U¬O¬Û¹ï¦a´£°ª¡A¹Ï¤¤ªº¦UÓÂI¬O¦UÓÓi°ò»Äªºn¨D¶q¤ñ²v20¢H¡A40¢H¡A60¢H¡A80¢Hªº±¡§Î¡C¹}®Æ¤¤¦pªG¤í¯Ê2ºØ¥H¤WªºÓi°ò»Ä®Épºâ¨ä¦UºØÓi°ò»Äªº¤í¯Êµ{«×¡A§â¥¦ªí¥Ü¦b¹Ï¤¤¡A¨ä¤¤³Ì§Cªº¨ºÓÂIªí¥Ü¨ä¹}®ÆªºÀç¾i»ù¡A¨ºÓÓi°ò»Ä´N¬O²Ä¤@¨îÓi°ò»Ä¡C¦b¹Ï¤¤§¹¥þ¤í¯ÊÂ÷Ói»Ä¹}®Æªº¬Û¹ïÀç¾i»ù¬O46¡A¬Û·í©ó¸É¥R¨¬³J®ò»Ä¥[¯ÖÓi»Än¨D¶qªº43¢H¡AÁÙ¦³§¹¥þ¤í¯Ê²ÕÓi»Ä¡A¹}®Æ¤§¬Û¹ïÀç¾i»ù¬O57¡A¬Û·í©ó¸É¥R¨¬54¢H³JÓi»Ä¥[¯ÖÓi»Äªºn¨D¶q¡C¹ê»Ú¤W¬O«ç¼Ëªº±¡§Î©O¡H§Ú̹êÅç¦p¤U¡G
§¹¥þ¤í¯Ê²ÕÓi»Ä¡A¹}®Æ¸Ì±N³J®ò»Ä¥[¯ÖÓi»Ä¥[¨ìn¨D¶q¬°¤îªº¦UÓµ{«×¤À¬°¦UÓ¬q¸¨Áý¹¡A¨ìn¨D¶qªº49.8¢H®ÉªuµÛ³J®ò»Ä¥[¯ÖÓi»Äªºµ{«×¦ÓÅÜ°Ê¡A¦A¤W¥h´N¬Û¦P¦Ó¤£ÅܤF¡C³J®ò»Ä¥[¯ÖÓi»Äªº²K¥[¶q¬On¨D¶qªº0¨ì44.7¢H®É¡A¬O©M³J®ò»Ä¥[¯ÖÓi»Äªº²K¥[µ{«×¤@°_ÅÜ°Ê¡A¦A¤W¥hªº¸Ü´NÅܱo¬Û¦P¤F¡C¹³³o¼Ë¦bChemical Score¸Ì±NÓi°ò»ÄÀç¾i¯S²§©Ê¥[¶i¥hªº·Qªk©M¹êÅçµ²ªG¬O¤@Pªº¡C ªí¤Q¤T¬O¤í¯Ê3ºØ¥H¤WÓi°ò»Ä®Éªº¹êÅç¡A¬Û¹ïÀç¾i»ù©M¹êÅ窺¼ÆȬO¤@Pªº¡C ªí13 Effect of varying levels of sulfur-containing amino acids (SAA) and threonine onbody weight change of chicks fed histidine-free diet
Diet |
Amino acid level (¢Hof reauirement) |
Chemical score |
Body weight change (g¡þ10 days) |
Nutritional |
||||
His |
SAA |
Thr |
score by weight |
body change |
||||
1 2 3 4 5 6 7 8 9 10 11 Pooled |
0 0 0 0 0 0 0 0 0 0 100 SEM |
0 0 0 0 40 40 40 80 80 80 100 |
0 0 40 80 0 40 80 0 40 80 100 |
0 0 0 0 0 0 0 0 0 0 100 |
- 23.4 - 20.6 - 19.5 - 19.8 - 15.4 - 10.4 - 9.8 - 15.0 - 7.8 - 9.0 7.0 1.3 |
a a a* a b c c b c c d |
(0)1 (9) (13) (12) (26) (43) (44) (28) (51) (47) (100) |
0 5 5 5 24 43 43 24 54 57 100 |
n=5. * One missing value. a,b,c,d,¡FP¡Õ0.05.Values in the parenthesis represent percentage relative to the growth response achieved with control diet.
¡@
¥Ñ¥H¤W©Ò´£Ói°ò»ÄÀç¾i¯S²§©Êªº®×¨Ò§ó¯à©M¹ê»Ú¤W¾iÂûªº®×¨Ò¬Û°t¦Xªº¡C¦]¦¹¸Õ§@¤F¦bn¨D¶q¤£¨¬©Î¹L³Ñ®É¡Aµá§Q®ú±Ð±Â(1981)¦bªí¤Q¥|ªº¤U¤èª`¸Ñ¸Ì´£Ò¤@ӲŦX°Êª«¦¨ªøªº¤½¦¡¡C¨Ò¦p§â³oÓ¤½¦¡®M¥Î¦bºë®ò»Äªºn¨D¶q¤W¡C¥H«e©Ò°Q½×³£¬O°²©w¦¨ªø¦±½u¬°ª½½u¦Ó¨¥¡C
ªí14 Fitness of the regression using the four-parameter kinetic equation¡¦ to growth
responses of chicks obtained by verying the dietary levels of individual essential amino acids
Amino acid |
Estimated parameters |
Contribution rate2 (R2) |
|||
b |
K |
Rmax |
n |
||
Arg His Ile Leu Lys Met¡ÏCys Phe¡ÏTyr Thr Trp Val |
-26.20 - 4.05 -23.79 -12.96 -10.98 -32.94 -17.41 -24.33 -17.32 -25.49 |
53.26 66.28 65.59 56.88 48.82 36.57 63.48 58.03 37.81 76.10 |
103.92 103.76 103.82 105.44 103.64 104.03 105.57 104.46 115.03 109.40 |
4.740 4.467 5.733 3.502 3.852 2.321 5.211 5.467 1.846 4.630 |
0.951 0.958 0.961 0.970 0.964 0.977 0.936 0.985 0.920 0.970 |
Where b, k, Rmax and n stand for Yintercept, X value required for a half maximal response, asymptotic maximal value and a nutritional constant related to the sigmoidicity of the curve, respectively.
2.All the R valuec were significant at P¡Õ0.001. ±Ä¥Î¤F³oÓ¤½¦¡¤§«á¡A¥i¥H¤F¸Ñ¨ì¦¹ºØ¾A¦X©ó¹ê»Úªº(¼ÆÈ)¸ê®Æ¡C¦bªí¤Q¥|¸Ì¥i¥H±o¨ìÃö©ó¦UºØÓi°ò»Ä©Ò±o¨ìªº¼ÆÈ¡C¼Æȸê®Æ¬O±Ä¥Î¹ï±Ä§ZÂûªºÂúÂûÁý¹Ói°ò»Ä²V¦Xªº¹}®Æ¨ì4¶g¤j¡C·|±Ä¥ÎÓi°ò»Ä²V¦X¦b¹}®Æ¤¤ªº(¼ÆÈ)¸ê®Æ¡A¬O¦Ò¼{¨ì¤£n§t¦³³J¥Õ½è®ø¤Æ²v¡BÓi°ò»Ä¦³®Ä²vµ¥ªº¦]¯À¡CBªº¼ÆȬO¨äÓi°ò»Ä§t¶q¬O0®Éªº¬Û¹ï¦¨ªø¶q¡AK¬O¹ï50¢Hªº¬Û¹ï¦¨ªø¶q¡A¥²nªº¦UºØÓi°ò»Äªº¶q¡A±N¨ä¥Hn¨D¶qªº¦Ê¤À²v(¦Ê¤À¤ñ)¨Óªí¥Ü¡ARmax¬Oªí¥Ü³Ì¤jªº¬Û¹ï¦¨ªø¶q¡An¬Oªí¥Ü¦±½uªº¶É±×¨¤«×¡A¼ÆÈ·U°ª¦±½uÅs¦±·U¤j¡CR2¬O°^Äm²v¡A·U±µªñ¡¨1¡¨¡A¦±½u©M¹ê»Úªº¼ÆÈ·U¤@P¡A°^Äm²v´N·|·U°ª¡C¦b³oÓ¤½¦¡¡A¥i¥H½T©wªº¦¨ªø©M¥Î¦b§@¥X¥»¼Æ¦¡®É¨S¦³¥Î¨ìªº¼ÆȨӧ@«H¿à¦¡¸ÕÅ窺µ²ªG¡A¨âªÌªº¦^Âk¬ÛÃö©Ê¤j¡CÅã¥Ü¥X¥i¥H¥Î¨Ó¥¿½T¦a¹w´ú¡A§Q¥Î¥»¤½¦¡¸Õ§@¦¨¦³Ãö¦UºØÓi°ò»Äªºµ¥°ª¹Ï¡C¦bÁa¶b¥Î¦Ê¤À¤ñ¨Óªí¥Ü¬Û¹ï¦¨ªø¶q¡A¬A©·¤º¡A¤ñ·Ó¤é¥»¹}®Æ¼Ð·Ç¡A¦b¹}®Æ¤¤§t¦³ªºÓi°ò»Äªº¶q¥Î¦Ê¤À¤ñ¨Óªí¥Ü¡A¬Û¹ï¦a¡A¦UºØÓi°ò»Äªº¤ÏÀ³¥Î¹ê½u¨Óªí¥Ü¡CÂI½uªí¥ÜÓi°ò»ÄªºÀç¾i¯S²§©Ê¤p®ÉªºÓi°ò»Äªº¤ÏÀ³¡Cºë®ò»ÄªºÁý¹¤ñn¨D¶q§C®É¡A·|¤ñ²ÕÓi»Ä°¾¥ª¡AÅã¥Ü¥Xºë®ò»ÄÅܦ¨¨îÓi°ò»ÄÁý¹¤ñn¨D¶q°ªªº¸Ü¡A¥i¥H¤F¸Ñ¨ì²ÕÓi»Ä·|¤ñ¸û®e©öÅܦ¨¨îÓi°ò»Ä¡C·í³JÓi»Ä¥[¯ÖÓi»Ä¦b¤ñ¸û§Cµ{«×®É·|¤ñßm¤BÓi»Ä§ó¬O¨îÓi°ò»Ä¡C¦Ó¤ñ¸û°ªµ{«×®É¡Aßm¤BÓi»Ä·|¤ñ³J®ò»Ä¥[¯ÖÓi»Ä§ó¬OÅܦ¨¨îÓi°ò»Ä¡C¦p¦¹¡A½Õ¬d¤F¦UºØÓi°ò»Ä¡A±q¥ª°¼¨ì¥k°¼ªº¶¶¦ì´N¬O¨îÓi°ò»Äªº¶¶¦ì¡C
¤µ«á¹³³o¼Ëµ¥°ª½u¤£¨¬¹º¨ì4¶gÄÖ(4¶g¤j)¡A§ó±N¥¦©µ¦ù¨ì²£§Z´Á©Î¬O¦×Âû¡A¥i¥H±N¥Ø¼Ð´Â¦V¨Ï¥Î¹q¸£¼ÒÀÀ(computer simulation)ªº¤è¦¡¡C¡@
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