Effect of oestradiol benzoate on oestrus intensity and pregnancy rate in CIDR treated anoestrus nulliparous and multiparous buffalo

Yousuf, Muhammad; Martins, J.P.N.; Husnain, A.; Riaz, Umair; Riaz, Hasan; Sattar, Abdul; Javed, Khalid; Ahmad, Nasim

doi:10.1016/j.anireprosci.2015.06.003

Cited by 17 publications

(8 citation statements)

References 17 publications

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“…Artificial insemination (AI) has played a major role in genetic selection, disease control and cost effectiveness of breeding in dairy cattle (Vishwanath, 2003;López-Gatius, 2012). Although, considerable research and development has taken place in estrus and ovulation synchronization in cows and buffalo with use of fixed time AI (Warriach et al, 2007;Rossi et al, 2014;Yousuf et al, 2015), yet its application in vast majority of buffalo population of Asia is negligible. In contrast, traditional use of AI at detected estrus is much higher, however, fertility is generally compromised.…”

Section: Introductionmentioning

confidence: 99%

Effect of timing of artificial insemination in relation to onset of standing estrus on pregnancy per AI in Nili-Ravi buffalo

Riaz¹,

Hassan²,

Husnain³

et al. 2018

Anim Reprod

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The aim of the present study was to determine the optimum time of artificial insemination after the beginning of standing estrus in buffalo. Nili-Ravi buffalo (n = 109) during breeding season were exposed to teaser bull at 12 hours interval to determine the standing heat (0 h). Buffalo were randomly allocated to different time groups and a single artificial insemination was performed either at 0 h (n = 30), 12 h (n = 27), 24 h (n = 28) or 36 h (n = 24). In a subset of buffalo (n = 38) ultrasonography was performed, twice daily from 0 h (onset of standing heat) to determine the time of ovulation. Pregnancy diagnosis was performed 35-40 days after AI. Results revealed that mean time of ovulation from onset of standing heat was 34.7 ± 0.96 h (range 30 to 42 h). Higher (P < 0.05) pregnancy per AI were achieved in buffalo when inseminated at 24 h (15/28; 53%) compared to 0 h (8/30; 26%) and 36 h (3/24; 13%). Pregnancy per AI, was in-between, in buffalo, inseminated at 12 h (10/27; 37%) and did not differ (P > 0.05) with those bred either at 24 h or 0 h. The odds ratio further confirmed that the occurrence of pregnancy per AI was two times higher in buffalo inseminated at 24 h as compared to those at 12 h. It is concluded that optimal pregnancy per AI can be achieved when buffalo are bred artificially 24 h after the onset of standing heat.

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Section: Introductionmentioning

confidence: 99%

Effect of timing of artificial insemination in relation to onset of standing estrus on pregnancy per AI in Nili-Ravi buffalo

Riaz¹,

Hassan²,

Husnain³

et al. 2018

Anim Reprod

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“…Animals were also palpated per rectum for presence of uterine tone and vaginal mucus discharge. Estrus response was determined by dividing the animal observed in estrus over total animals in each group (Yousuf et al, 2015). All the animals that showed behavioral signs of estrus were mated with a breeding bull.…”

Section: Determination Of Estrus Expression and Pregnancy Ratementioning

confidence: 99%

Effectiveness of Ozone Treatment in Curing Uterine Infections and Associated Mastitis in Dairy Animals

Ahmad

et al. 2022

PJAAEVS

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To find the association between uterine infection and mastitis and to compare the effectiveness of ozone treatment and antibiotics in curing these infections, 200 dairy cows were screened by culturing uterine and milk samples on blood agar containing 5% sheep blood. A total of 52 animals either suffering from mastitis or uterine infections were isolated and divided into four groups to receive antibiotic or ozone treatments i.e., MA (mastitis animals treated with antibiotics), MO (mastitis animals treated with ozone), UA (uterine infected animals treated with antibiotics) and UO (uterine infected animals treated with ozone). The UA and UO groups were further treated with ovsynch estrus synchronization protocol on 14th day after the start of ozone or antibiotic treatment. The estrus response and pregnancy rate were determined to evaluate the efficiency of ozone or antibiotic treatment in uterine infected animals. The results showed a significant (P<0.05) association between uterine infection and mastitis based on the presence of common pathogen. The cure rates in MO (53.8%) was higher (P<0.05) than MA (23.1%). Similarly, estrus response and pregnancy rate were significantly higher (P<0.05) in UO group than UA group. In conclusion, ozone therapy is more effective in curing mastitis and uterine infections.

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“…All the animals were evaluated for estrus expression by using a scale of 1-5. Estrus expression was ranked by the presence of tone in the uterine horns, mucous discharge, edematous vulva, bellowing, restlessness, and other estrus signs (Yousuf et al 2015). Fixed time artificial insemination (FTAI) was done according to the standard protocols by an experienced technician.…”

Section: Estrus Expression and Timed Artificial Inseminationmentioning

confidence: 99%

The effect of GnRH administration/insemination time on follicular growth rate, ovulation intervals, and conception rate of Nili Ravi buffalo heifers in 7 –day-CIDR Co-synch

Haider

Chishti

Mehmood

et al. 2021

Trop Anim Health Prod

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The present study aimed to compare two different insemination times (72 vs 84 h) associated with an ovulation induction (GnRH) in a 7-day CIDR Co-synch to improve the conception rate of Nili Ravi buffalo heifers. Forty Nili Ravi buffalo heifers were randomly separated into two treatments based on artificial insemination (AI) timing (72 vs 84 h). All heifers were subjected to controlled internal drug release (CIDR), containing 1.38 g of progesterone for 7 days. On CIDR removal, both treatments received 150 µg of prostaglandin intramuscularly. In 7-day CIDR Co-synch (n = 20), animals were injected 100 µg of GnRH administration intramuscularly and inseminated concurrently at 72 h after CIDR removal. The remaining half (n = 20) were injected and inseminated concurrently at 84 h of CIDR removal. Pregnancy diagnosis was performed on day 40 of timed artificial insemination (TAI) with ultrasound. The follicular growth rate between 72 h after PGF 2α /CIDR removal to pre-ovulatory follicle in 7-day CIDR Co-synch was more (0.102 ± 0.005 mm vs 0.079 ± 0.003 mm; P = 0.01) at 84 than 72 h. The interval from GnRH administration/TAI to ovulation was high (26.8 ± 1.64 h vs. 15.1 ± 1.25 h, P = 0.01) in 72 than 84 h. Conception rates were considerably higher in buffalo heifers inseminated at 84 h (65%) than 72 h (25%) in 7-day CIDR Co-synch protocol. In conclusion that in Nili Ravi buffalo heifers, GnRH administration/TAI after 84 h of CIDR removal allows greater follicular growth rate and shortens interval from AI to ovulation compared to the GnRH administration/TAI after 72 h of CIDR removal in 7-day CIDR-Co-synch protocol.

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Effect of oestradiol benzoate on oestrus intensity and pregnancy rate in CIDR treated anoestrus nulliparous and multiparous buffalo

Cited by 17 publications

References 17 publications

Effect of timing of artificial insemination in relation to onset of standing estrus on pregnancy per AI in Nili-Ravi buffalo

Effect of timing of artificial insemination in relation to onset of standing estrus on pregnancy per AI in Nili-Ravi buffalo

Effectiveness of Ozone Treatment in Curing Uterine Infections and Associated Mastitis in Dairy Animals

The effect of GnRH administration/insemination time on follicular growth rate, ovulation intervals, and conception rate of Nili Ravi buffalo heifers in 7 –day-CIDR Co-synch

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