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การประชุมวิชาการTHE EFFICACY OF MINERAL- AMINO ACID COMPLEX BLEND (Zn,Mn,Cu),Fe and Se-AMINO ACID COMPLEX FOR WHITE SHRIMP, Litopenaeus. vannamei, DIETSผู้แต่ง: Dr.Orapint Jintasataporn, Associate Professor ,  Terry Ward, Srinoy Chumkam, Mrs.Oratai Jintasataporn , การประชุมวิชาการ:  
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Use of PMSG/hCG Following Altrenogest in Estrus synchronized Gilts) ผู้เขียน:Srinoy Chumkam, นายชาญวิทย์ วัชรพุกก์, ศาสตราจารย์ , Kkrit Mongkonpunya, You-ming Su สื่อสิ่งพิมพ์:pdf AbstractTwenty crossbred gilts (Landrace X Large White) were allocated, randomly to altrenogest+PMSG/hCG treated (n=10) and altrenogest (control; n=10) groups. Altrenogest+PMSG/hCG treated groups were fed with altrenogest at 20 mg./day for 18 condecutive days. Then they were injected with 1000 IU of PMSG and 500 IU of hCG at 24 h and 96 h post altrenogest withdrawal. Seventy eight percent of the control group and 100% treated group exhibited signs of estrus within 6 days post altrenogest withdrawal. The interval of estrus was reduced (P<0.05) by altrenogest. Total born and alive in control group was higher (P<0.05 and P<0.05, respectively) than the treated group. Percent of death at birth in term of still born, mumification and other cause of death at birth and the control were 1.2, 0, and 0.5 percent, respectively, and of the treated group were 0, 0.5 and 0.8 percent, respectively. These resuslts indicated that the use of PMSG/hCG following administration of altrenogest has induced estrus in gilts within 6 days. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Handling Stress of Gilts During Gestation on Embryonic Survival ) ผู้เขียน:Srinoy Chumkam, J.T. Yu, Chanvit Vajrabukkal สื่อสิ่งพิมพ์:pdf AbstractIn the study of the effects of handling stress on reproductive performance of gilts, 18 gilts were allocated to either stress (blood collection) or control (no blood collection) treatments. They were housed in the same building. On day 20-22 after insemination all the gilts were slaughtered and it had been found that the number of corpora lutea, corpora lutea size and embryonic mortality were not significantly difference but the rectal temperature was found to be significantly difference. There was a marked drop of rectal temperature over number of days after they had been inseminated. It was concluded that in more severe environmental conditions, handling of early pregnant gilts should be treated with great care. |
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