Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE   SEPTEMBER 2014 , Volume 4 , Number 3; Page(s) 499 To 504.
 
Paper: 

TEMPORAL CHANGES IN ENDOGENOUS ESTROGENS AND EXPRESSION OF BEHAVIORS ASSOCIATED WITH ESTRUS DURING THE PERIOVULATORY PERIOD IN DOUBLESYNCH TREATED MURRAH BUFFALOES (BUBALUS BUBALIS)

 
 
Author(s):  MIRMAHMOUDI R.*, PRAKASH B.S.
 
* DEPARTMENT OF ANIMAL SCIENCE, FACULTY OF AGRICULTURE, UNIVERSITY OF JIROFT, JIROFT, IRAN
 
Abstract: 

The aims of this study were (a) to establish the occurrence, duration and intensity of behavioral estrus symptoms, and (b) to determine the relationship between behavioral estrus symptoms with the total estro-gen profiles in cycling Murrah buffaloes (n=10) subjected to Doublesynch protocol (0 PGF2a, 2 GnRH, 9 PGF2a and 11 GnRH). After both GnRH injections, estrus and its behavioral signs were detected at hourly intervals using visual observations, transrectal examination of genitalia, and bull parading twice a day for 30 min each. Frequent urination (100%) and excitement (100%) were the best indicators of estrus followed by swollen vulva (90%) and bellowing (85%). The longest duration of estrus signs viz. swollen vulva, was observed up to 8.9±0.5 h and 11.1±0.3 post first and second GnRH administrations, respectively. The mean intervals between the onset of estrus symptoms appearance and ovulation were 13.8±0.9 h and 13.4±1.0 h post first and second GnRH inactions, respectively. The mean total estrogen concentrations at the time of both GnRH injections were above the basal level (8.4±1.9 pg/mL; range 2.9-18.4 and 7.9±1.9 pg/mL; range 2.9-17.6 at the time of the first and second GnRH injections, respectively), temporarily in-creased post GnRH treatments and then gradually declined to its basal level during ovulation time window. Frequent urination, excitement and swollen vulva appeared to be the most notable estrus symptoms after GnRH injections. Our findings also suggest that the AI can be done at a fixed time (once 20 to 24 h posts second GnRH) in buffaloes treated with Doublesynch protocol.

 
Keyword(s): DOUBLESYNCH, ESTROGEN, ESTRUS BEHAVIOR, MURRAH BUFFALO
 
 
References: 
 
Click to Cite.
APA: Copy

MIRMAHMOUDI, R., & PRAKASH, B. (2014). TEMPORAL CHANGES IN ENDOGENOUS ESTROGENS AND EXPRESSION OF BEHAVIORS ASSOCIATED WITH ESTRUS DURING THE PERIOVULATORY PERIOD IN DOUBLESYNCH TREATED MURRAH BUFFALOES (BUBALUS BUBALIS). IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE, 4(3), 499-504. https://www.sid.ir/en/journal/ViewPaper.aspx?id=407640



Vancouver: Copy

MIRMAHMOUDI R., PRAKASH B.S.. TEMPORAL CHANGES IN ENDOGENOUS ESTROGENS AND EXPRESSION OF BEHAVIORS ASSOCIATED WITH ESTRUS DURING THE PERIOVULATORY PERIOD IN DOUBLESYNCH TREATED MURRAH BUFFALOES (BUBALUS BUBALIS). IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE. 2014 [cited 2021May14];4(3):499-504. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=407640



IEEE: Copy

MIRMAHMOUDI, R., PRAKASH, B., 2014. TEMPORAL CHANGES IN ENDOGENOUS ESTROGENS AND EXPRESSION OF BEHAVIORS ASSOCIATED WITH ESTRUS DURING THE PERIOVULATORY PERIOD IN DOUBLESYNCH TREATED MURRAH BUFFALOES (BUBALUS BUBALIS). IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE, [online] 4(3), pp.499-504. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=407640.



 
  pdf-File
Yearly Visit 53 Persian Abstract
 
Latest on Blog
Enter SID Blog