1)Inkoko z'inkoko zo mu bwoko bwa Broiler

Ubushakashatsi bwagaragaje ko iyo ubushyuhe bukabije kuri 32°C,umunyu wa kalisiyumu wa methionine hydroxy analogue(HMTBa-Ca) irushaho kunoza uburyo inyama z’inka zirya, kwiyongera k’umusaruro ku munsi, no gukura kw’imitsi mu nyamaswa z’inka kurusha DL-methionine (DLM). Muri icyo gihe, yongera cyane ubushobozi bwa antioxydant, igabanya urugero rwa free radicals, kandi ikongera ubushobozi bwa redox, bityo ikagaragaza imikorere myiza mu guteza imbere umusaruro no kugabanya stress ya oxidative.

Icyitonderwa: DLM yerekeza kuri DL-methionine, naho HMTBa-Ca yerekeza ku munyu wa kalisiyumu wa analogue ya hydroxy methionine. Inyuguti zitandukanye zikurikira amakuru ari mu nkingi imwe zigaragaza itandukaniro rikomeye hagati y’amatsinda y’ubuvuzi (P < 0.05).

Itsinda	Uburemere bw'umubiri bwa nyuma (kg)	Inyungu mpuzandengo ya buri munsi (g)	Ingano y'ibiryo bya buri munsi (g)	Igipimo cyo guhindura ibiryo
0.1% DLM	2.25 ± 0.13a	53. 61 ± 2. 99a	122. 40 ± 4. 06a	2.29 ± 0. 17b
0.2% DLM	2.37 ± 0. 14ab	56. 41 ± 3. 38ab	128. 24 ± 4. 22b	2. 28 ± 0. 19b
0.3% DLM	2.39 ± 0. 15ab	56. 85 ± 3. 63ab	122. 65 ± 4. 83a	2. 16 ± 0.11b
0.1%HMTB-Ca	2.38 ± 0. 18ab	56. 61 ± 4. 22ab	123. 16 ± 7. 07a	2. 18 ± 0. 10b
0.2%HMTB-Ca	2.44 ± 0. 13b	58. 01 ± 3. 03b	130. 80 ± 4. 44b	2. 26 ± 0. 17b
0.3%HMTB-Ca	2.57 ± 0. 11c	61. 12 ± 2. 68c	124. 93 ± 4. 92a	2. 04 ± 0. 17a

2)Ingurube

Ubushakashatsi bwagaragaje ko kongeramo kimwe cya munani cya DL-2-hydroxy-4-(methylthio)butanoic acid calcium (HMTBa-Ca) cyangwa 65% by'ingano ya DL-methionine (DLM) byatanze iterambere ringana mu mikurire, byombi bikaba biruta cyane indyo idafite methionine. Nta tandukaniro ryagaragaye mu matsinda y'ubuvuzi mu kurya ibiryo cyangwa impfu.

Imbonerahamwe ya 1 Uburyo bwo gukura bw'ingurube zo mu bwoko bwa DL-methionine na DL-2 hydroxy-4-methylthio-butyrate ziterwa na aside ku kigero cya 65:100 mu ngurube zo mu rugo

Ihinduka	Kutagira Met Yahagije	HMTBCa	65DLM	SEM	ANOVA, P- agaciro
BW, kg	22.77^b	25.15^a	25.37^a	0.299	<0.001
ADG, g/d	628^b	655^a	659^a	8.16	0.019
ADFl, g/d	995	971	1010	14.00	0.164
G:F,g/g	0.60^b	0.67^a	0.66^a	0.003	<0.001
Impfu,%	0.00	0.00	0.06	0.036	0.376

3）Inyama z'inka

Mu nka zo mu bwoko bwa Holstein, buri munsi hatangwa garama 400 z'umunyu wa kalisiyumu wa aside irike nakalisiyumu ya hydroxy methionineYongereye cyane umusaruro w'amata n'umusaruro wa lactose. Mu nka zoroye mbere y'uko zibyara, byanazamuye cyane imikorere y'imyororokere, harimo no kubyara cyane no kubyara igihe gito, bitagize ingaruka ku miterere y'umubiri cyangwa ibiro by'umubiri.

Imbonerahamwe ya 2 Amavuta y'amata, poroteyine na lactose umusaruro (kg/umunsi) n'imiterere y'amata (g/kg) ku nka zihabwa indyo igenzura (C) cyangwa indyo yuzuyemo lipide na methionine (S)

Icyumweru cyo konsa		C	S	Akarere ka Afurika y'Iburasirazuba
Umusaruro w'amata	2-12	29.54a	30.71b	0.34
Umusaruro w'amata	13-20	27.45c	28.86d	0.32
Umusaruro w'ibinure	2-12	1.17	1.19	0.01
Umusaruro w'ibinure	13-20	1.10	1.10	0.01
Umusaruro wa poroteyine	2-12	0.98	0.99	0.01
Umusaruro wa poroteyine	13-20	0.95	0.95	0.0
Umusaruro wa Lactose	2-12	1.37c	1.43d	0.01
Umusaruro wa Lactose	13-20	1.29c	1.38d	0.01
Igipimo cy'ibinure	2-12	40.73	40.19	0.25
Igipimo cy'ibinure	13-20	40.48c	38.40day	0.30
Igipimo cya poroteyine	2-12	33.84c	32.84d	0.09
Igipimo cya poroteyine	13-20	34.60c	33.02d	0.09
Ikigero cya Lactose	2-12	46.36	46.36	0.08
Ikigero cya Lactose	13-20	6.71	46.76	0.09