45.飼料中添加methionine是為補充下列何種微量元素?
(A)硒
(B)銅
(C)硫
(D)鈷
答案:登入後查看
統計: A(608), B(309), C(1568), D(490), E(0) #1838833
統計: A(608), B(309), C(1568), D(490), E(0) #1838833
詳解 (共 4 筆)
#6458996
12.Thiopental 與 pentobarbital 化學結構上之不同,主要為 thiopental 結構第 2 碳上之氧被下列何者取代?
(A) 氮
(B) 溴
(C) 鈉
(D) 硫
-96年 - 96-2 專技高考_獸醫師:獸醫藥理學#47437
答案:D
thio 硫
5
0
#7391520
此外,Methionine也被描述為貓的限制性胺基酸,基於代謝路徑,進而影響牛磺酸的形成。
- Methionine is generally the most limiting AA for cats fed a meat-based conventional diet.
- Most breeds of dogs can synthesize sufficient taurine when fed a methionine- and cysteine-adequate diet [43]. However, an inadequate intake of methionine and cysteine in diets [e.g., plant (e.g., peas, lentils, and rice)-based foods with no or insufficient taurine] may contribute to the development of dilated cardiomyopathy characterized by thin heart muscle and enlarged chambers in some breeds of dogs [98, 99]. For example, a small proportion (1.3%–2.5%) of Newfoundland dogs fed commercially available diets that were considered to be complete and balanced in nutrition have a deficiency of taurine [100] due to reduced taurine synthesis possibly as a result of gene mutations [101]. -> 狗狗版本缺Methionine是因為日糧攝取不足(植物餵食為主)
- 當Methionine形成限制時,則會影響牛磺酸的形成。
雖然以下這題是在問脂肪酸,不是在說胺基酸,可參考。
ㅤㅤ
49.下列何種必需脂肪酸在貓需由膳食獲得,而犬隻可以自行在體內合成?
(A) 亞麻油酸(linoleic acid)
(B) α-次亞麻油酸(α-linolenic acid)
(C) 花生四烯酸(arachidonic acid)
(D) 牛磺酸(taurine)
-114年 - 114 專技高考_獸醫師:獸醫普通疾病學#128955
0
0
#7391486
Methionine 在紅本提及的其他功能
- S-Adenosyl-L-Methionine (SAMe) (P.439)
- Methionine 作為尿液酸化劑,能協助Methenamine釋放甲醛以發揮殺菌作用 (P.938);Methenamine是一種前驅藥物 (Prodrug),在酸性尿液中,它會經由水解反應分解,釋放出甲醛 (Formaldehyde) 和氨 (Ammonia)
60.下列何者於酸性溶液中能釋放出甲醛而產生抗菌效果?
(A) carbadox
(B) fusidic acid
(C) methenamine
(D) nalidixic acid
-107年 - 107-1 專技高考_獸醫師:獸醫藥理學#67592
0
0