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頁籤選單縮合
題名 | 助孕素對於初產母雞產卵之影響=The Effects of Progesterone upon the Production of Laying Pullets |
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作者姓名(中文) | 季培元; | 書刊名 | 中華農學會報 |
卷期 | 57 民56.03 |
頁次 | 頁79-82 |
關鍵詞 | 助孕素; 初產母雞; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗分作二部份進行,以研究助孕素用不同方法處理初產卵母?產卵之影響。 (一)以溶於胡麻油內之助孕素,作皮下注射,總劑量為0, 2, 4, 8, 16, 32 及 64 mg.,無論一次注射或分多次注射,於處理期15天內及處理後28天內之產卵量,均有顯著之抑制影響。此種影響因助孕素劑量之增加而愈甚。 (二)根據處理前之產卵量分作四個產卵組觀察,於處理前產卵量較高者則於處理期及處理後可維持其較高之產卵量。此表示較高產卵量者有較多之激性腺素釋出,而亦可能於各產卵組間助孕素之抵抗激性腺素存有遺傳差異。 |
英文摘要 | Two parts of the experiment have been conducted to study the influence of progesterone administered with various methods upon the subsequent production of laying pullets. 1. Crystalline progesterone in sesame oil injected subcutaneously either in single or multiple doses at the levels of 0, 2, 4, 8, 16, 32 and 64 mg. total dose resulted in a highly significant depression of production in the pullets during a 15-day treatment and 28-day post-treatment period. This inhibition of production was linear as the level of progesterone increased. 2. Pullets classified into four production groups on the basis of their pre-treatment production maintianed the same relative ranks during the treatment and post- treatment phases. This suggests that the higher producers have a higher output of gonadotropic harmones based on egg production and that there may be genetic differences between production groups in resistance to gonadotropic inhibition by progesterone. |
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