蟲食性(刺or草巨)的營養觀念討論 - 刺蝟

By Regina
at 2009-05-07T20:34
at 2009-05-07T20:34
Table of Contents
※ [本文轉錄自 Reptile 看板]
※ 引述《mrgigi (~爬蟲板Reptile~)》之銘言:
: http://www.cnsweb.org/digestvertebrates/WWWEdStevensMammalHedgehog.html
: 這邊可看到刺蝟的GI是偏向雜食性的,
: 但是我自己的思考是推測,
: 因為食蟲目的主食有很多幾丁質,
: 幾丁質可以把他當成像是纖維素一般,
: 所以GI長度像是介於草食獸和肉食獸之間。
: 所以我"推測"草莓南瓜等等之類的東西,
: 是可以當作"點心"但是不宜當作主食(佔整體diet 10%以下)。
: "推測"他們的植物性食物要注意纖維那欄或是膳食纖維。
: 才可確保不會下痢。
: 上面所說得一切都是查得資料和推測,
: 歡迎討論 ^^
前幾天和某板友討論這篇文章,
他說我寫的太不夠淺白 orz.......
都看不懂....
所以再盡量重新細說,
關於蟲食性動物的食性營養需求等等,
我個人的見解和推論~
刺蝟是食蟲目的動物,
在野外的觀察紀錄都顯示,
他的主食是直翅目、鱗翅目等等昆蟲。
偶爾才會有些鳥蛋蜥蜴或是植物~
主食為昆蟲,昆蟲的外骨骼是幾丁質,
所以事實上他也攝入了很多幾丁質!!!
幾丁質的化學結構很類似纖維素,
所以你可以約略的將它視為動物性的纖維素!!!
我們知道ADF(酸洗纖維)含量與消化率是負相關,
也就是說纖維含量越高,而消化率會隨之降低。
事實上人工飼養的環境下,
常常動物會有過胖的現象,
因為人工飼養,所提供的纖維量(幾丁質)普遍來說是偏低的!!!
所以對脂肪或是蛋白質或是乾物質的消化率過高,
以致於會有過胖的現象。
同理可證,
在爬蟲類一些蟲食性的物種,
例如像是草原巨蜥,
人工飼養下,也常常有過胖的現象!!!
因為飼主常常是餵給小鼠、肉條或是內臟等等,
昆蟲給飼的量不夠多,
所以消化率過高而導致會有過肥的現象!!!
另外在纖維量(幾丁質)增加的時候,
也能增進腸道蠕動,
使得糞便的型態改善,
減少下痢,拉肚子......等等。
所以這也是我為何最後會"推論",
若是要餵給刺蝟植物性or動物性的食物時,
可能要注意"纖維"這個成分,
才不至於拉肚子~~
事實上營養的很多觀念是互相可以相通的,
並非侷限在哺乳類或是爬蟲類~
歡迎大家一起來討論 xD
--
不放相簿,好像就沒人知道你是誰~
http://www.pixnet.net/home/mrgigi
~Heaven Knows
--
※ 引述《mrgigi (~爬蟲板Reptile~)》之銘言:
: http://www.cnsweb.org/digestvertebrates/WWWEdStevensMammalHedgehog.html
: 這邊可看到刺蝟的GI是偏向雜食性的,
: 但是我自己的思考是推測,
: 因為食蟲目的主食有很多幾丁質,
: 幾丁質可以把他當成像是纖維素一般,
: 所以GI長度像是介於草食獸和肉食獸之間。
: 所以我"推測"草莓南瓜等等之類的東西,
: 是可以當作"點心"但是不宜當作主食(佔整體diet 10%以下)。
: "推測"他們的植物性食物要注意纖維那欄或是膳食纖維。
: 才可確保不會下痢。
: 上面所說得一切都是查得資料和推測,
: 歡迎討論 ^^
前幾天和某板友討論這篇文章,
他說我寫的太不夠淺白 orz.......
都看不懂....
所以再盡量重新細說,
關於蟲食性動物的食性營養需求等等,
我個人的見解和推論~
刺蝟是食蟲目的動物,
在野外的觀察紀錄都顯示,
他的主食是直翅目、鱗翅目等等昆蟲。
偶爾才會有些鳥蛋蜥蜴或是植物~
主食為昆蟲,昆蟲的外骨骼是幾丁質,
所以事實上他也攝入了很多幾丁質!!!
幾丁質的化學結構很類似纖維素,
所以你可以約略的將它視為動物性的纖維素!!!
我們知道ADF(酸洗纖維)含量與消化率是負相關,
也就是說纖維含量越高,而消化率會隨之降低。
事實上人工飼養的環境下,
常常動物會有過胖的現象,
因為人工飼養,所提供的纖維量(幾丁質)普遍來說是偏低的!!!
所以對脂肪或是蛋白質或是乾物質的消化率過高,
以致於會有過胖的現象。
同理可證,
在爬蟲類一些蟲食性的物種,
例如像是草原巨蜥,
人工飼養下,也常常有過胖的現象!!!
因為飼主常常是餵給小鼠、肉條或是內臟等等,
昆蟲給飼的量不夠多,
所以消化率過高而導致會有過肥的現象!!!
另外在纖維量(幾丁質)增加的時候,
也能增進腸道蠕動,
使得糞便的型態改善,
減少下痢,拉肚子......等等。
所以這也是我為何最後會"推論",
若是要餵給刺蝟植物性or動物性的食物時,
可能要注意"纖維"這個成分,
才不至於拉肚子~~
事實上營養的很多觀念是互相可以相通的,
並非侷限在哺乳類或是爬蟲類~
歡迎大家一起來討論 xD
--
不放相簿,好像就沒人知道你是誰~
http://www.pixnet.net/home/mrgigi
~Heaven Knows
--
Tags:
刺蝟
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