scholarly journals Estrus Response and Conception Rate in Sangamneri and Osmanabadi Goat Does using different Estrus Synchronization Protocols

2017 ◽  
Vol 6 (1) ◽  
pp. 308-315
Author(s):  
Amle M.B. ◽  
◽  
Birade H.S. ◽  
Gulawane S.U. ◽  
◽  
...  
Keyword(s):  
Conception Rate ◽  
Estrus Synchronization ◽  
Estrus Response

scholarly journals ESTRUS RESPONSE HOLSTEIN FRIESIAN COW PERANAKAN WHO INJECTED PROSTAGLANDIN IN INTRAMUSCULAR AND INTRAUTERINE

2018 ◽  
Vol 3 (2) ◽  
pp. 81
Author(s):  
Lilik Bawa Nuryanto ◽  
Ristika Handarini ◽  
Yanyan Setiawan
Keyword(s):  
Pregnancy Rate ◽  
Reproductive Function ◽  
T Test ◽  
Conception Rate ◽  
Estrus Synchronization ◽  
Estrous Cycles ◽  
Holstein Friesian ◽  
Reproductive Disease ◽  
Estrus Response ◽  
Rectal Palpation

This study was aimed to compare the different responses of cattle estrus and pregnancy rate FH (Friesian Holsein) were injected with the prostaglandin hormone by intramuscular and intra-uterine. This study was used 20 cows FH on condition of normal reproductive function, not in a state of pregnant (confirmed by rectal palpation), visually not fat and not skinny, not reproductive disease, normal estrous cycles. Cows were divided into two treatment, P1: estrus synchronization by intra muscular (IM), P2: estrus synchronization by  intrauterine (IU). Data were analyzed by T test, to compare the differences between the two treatments with SPSS device. The results showed that the synchronization of pregnancy by using intrauterine more efisien. The conclusion of this research PGF2α hormone injections by intrauterinehas atendency response   higher than by intra muscular injection method.               Keyword : Non Return Rate, Service Per Conception, Conception Rate.

scholarly journals Evaluation of two estrus synchronization protocols in dairy cattle at North Shoa zone Ethiopia

2018 ◽  
Vol 19 (2) ◽  
pp. 93
Author(s):  
Yeshimebet Chanyalew ◽  
Tesfaye Zewde ◽  
Hulunim Gatew ◽  
Lina Girma ◽  
Getachew Kassa ◽  
...  
Keyword(s):  
Reproductive Tract ◽  
Visual Observation ◽  
Estrus Synchronization ◽  
Livestock Management ◽  
Significant Difference ◽  
Remarkable Result ◽  
Calving Rate ◽  
Estrus Response ◽  
Rectal Palpation ◽  
Small Holder

This study was initiated to change the hesitation of the farmer on the effectiveness of estrus synchronization under their (Ethiopian small holder) livestock management system using two synchronization protocols. Non-pregnant animals with normal reproductive tract and that fulfilled the preconditions for estrus synchronization were considered for treatment & assigned into two synchronization protocols (single PGF2α injection; and double PGF2α injection). Among 94 (27 heifer and 67 cows) synchronized cows using one and two injections of PGF2α protocols 26 heifers and 63 cows (89/94.7%) were exhibited estrus by visual observation and rectal palpation the remaining 5 (5.3%) did not illustrate heat. The overall pregnancy was 59.6 % with overall birth 94.3 %. High pregnancy was obtained in the double injection of PGF2α treatment group (63.1 %) than animals treated with one shot protocol 55.8 % there were statistically significant difference between treatments (p<0.05). Higher pregnancy was obtained from cross breed animals than local breeds. More over most of the animals come to estrus greater than 96 hrs. There was also significant difference between technicians on detecting the CL and conception. The estrus response, conception rate, pregnancy rate and calving rate was higher in both protocols so producers or farmers can use either the two protocols to achieve remarkable result but tight follow-ups and more resources are need to be exploited at farmer level.

Monitoring Plasma Metabolic Profile, Fertility in Normal and Estrus Synchronized Suckled Kankrej Cows

2021 ◽  
Author(s):  
Mehrajuddin Naikoo ◽  
A.J. Dhami ◽  
B.C. Parmar
Keyword(s):  
Total Cholesterol ◽  
Metabolic Profile ◽  
Conception Rate ◽  
Plasma Metabolites ◽  
Control Group ◽  
Zebu Cattle ◽  
Estrus Synchronization ◽  
Treatment Protocols ◽  
Mean Values ◽  
The Mean

Background: Postpartum fertility in dairy bovines is one of the important criteria of sustainable dairy industry and economy of farmers. The Kankrej, a dual purpose zebu cattle, is known for its endurance, but is slow breeder with very late maturity, prolonged postpartum anestrous/subestrous and thereby calving interval. These peculiarities necessitate scientists to adopt fixed time AI (FTAI) protocols of estrus synchronization for improving their reproductive efficiency. Hence this study was aimed to assess the fertility and plasma metabolic profile of normal and synchronized anestrous/ subestrous suckled Kankrej cows of an organized farm.Methods: The study involved 36 parturient Kankrej cows of the University Farm that were maintained under identical nutritional and managerial practices. Blood samples were collected in heparinized vacutainers from all the animals on the day of calving and then at 10 days interval till 90 days for plasma metabolic profile. Animals monitored by per rectal palpation 10 days apart around day 70-80 postpartum revealed 30 cows to be anestrous or subestrous, which were randomly allocated to five different estrus synchronization protocols at day 90-92, each with six cows and a group of six cows that exhibited estrus and were bred by day 70-90 served as normal control. The treatment protocols included Ovsynch, CIDR, Ovsynch + CIDR, Cosynch and double PGF2α together with estimation of plasma metabolites on day 0, 7, 9/10 (AI) and then at 10 days interval up to day 40 post-AI. Result: The mean plasma total protein levels varied non-significantly, while total cholesterol and triglycerides varied significantly (p less than 0.01) between intervals until 90 days postpartum in most of the groups with gradual increase in the mean values from the day of calving. The estrus synchronization protocols, however. did not alter the plasma profile of these constituents. The estrus induction response with Ovsynch, CIDR, Ovsynch + CIDR, Cosynch and PGF2α treatment was 66.66, 83.33, 50.00, 66.66 and 66.66% and the conception rates at induced estrus 16.66, 33.33, 16.66, 50.00 and 50.00%, respectively. In normal cyclic control group, the conception rate at first cycle was 33.33%. The plasma total cholesterol and triglycerides were higher in conceived than non-conceived cows, particularly during early postpartum period and post-AI. It was concluded that CIDR, Cosynch and PGF2α protocols were better for estrus induction and conception rate in anestrous and subestrous suckled Kankrej cows, although they did not influence the plasma metabolic profile.

Melengestrol acetate, estradiol-17β and GnRH for synchronization of estrus and ovulation in beef cows

1999 ◽  
Vol 79 (1) ◽  
pp. 39-43 ◽  
Author(s):  
J. Thundathil ◽  
J. P. Kastelic ◽  
W. O. Olson ◽  
R. B. Cook ◽  
R. J. Mapletoft
Keyword(s):  
Key Words ◽  
Pregnancy Rate ◽  
Beef Cows ◽  
Pregnancy Rates ◽  
Conception Rate ◽  
Estrus Synchronization ◽  
Short Term ◽  
Melengestrol Acetate ◽  
Conception Rates ◽  
Estradiol 17Β

Three experiments were conducted with suckled crossbred beef cows to determine the efficacy of various short-term regimens for synchronizing estrus or ovulation and to determine whether feeding melengestrol acetate (MGA) after timed AI will increase pregnancy rate. In exp. 1, all cows (n = 141) were given 0.5 mg MGA head−1 d−1 for 7 d (days 1 to 7), 1 or 5 mg E17β (and 100 mg progesterone) or 100 µg GnRH on day 1, and 500 µg cloprostenol on day 7. There were no significant differences among groups for estrous or synchronized conception rates (average, 84.4 and 52.1%, respectively). With an identical protocol in exp. 2 (78 cows), by day 11, cows given 5 mg E17β had the highest estrous and synchronized pregnancy rates (65.4 and 42.3%), compared to 1 mg E17β (46.2 and 15.4%) and GnRH (34.6 and 11.5%). Cows not detected in estrus were timed-inseminated and given 100 µg GnRH, 100 h after cloprostenol. There were no significant differences among groups for synchronized conception rate to timed AI (65.0%) or synchronized pregnancy rate to all inseminations (56.4%). Overall, 5 mg E17β gave the most consistent results. In exp. 3, 84 cows were given 100 µg GnRH on days 1 and 9, 500 µg cloprostenol on day 7, and were timed-inseminated on day 10. Half were fed MGA (0.5 mg head−1 d−1) on days 16 to 22, but the pregnancy rate was not different from that in the remaining cows (55.0 versus 47.8%, P > 0.5). Key words: Ovary, follicles, estrus synchronization, beef cows

scholarly journals Efficacy of different estrus synchronization protocols on estrus induction response and conception rate in acyclic and cyclic crossbred cows

2019 ◽  
Vol 72 (2) ◽  
pp. 202-207
Author(s):  
AR Prajapati ◽  
AJ Dhami ◽  
KK Hadiya ◽  
JA Patel ◽  
JP Prajapati
Keyword(s):  
Conception Rate ◽  
Estrus Synchronization ◽  
Crossbred Cows

scholarly journals Efficiency of Different Estrus Synchronization Protocols in Surti Goats

2020 ◽  
Vol 15 (03) ◽  
pp. 21-23
Author(s):  
CP Parmar ◽  
AJ Dhami ◽  
JA Patel ◽  
VP Belsare
Keyword(s):  
Pregnancy Rate ◽  
Untreated Control ◽  
Management Practices ◽  
Control Group ◽  
Estrus Synchronization ◽  
Standard Management ◽  
Natural Breeding ◽  
Estrus Response

A total of 54-adult non-pregnant Surti goats were selected and randomly divided into three equal groups (n=18 each). Two groups were put under estrus synchronization protocols, viz., Double PGF2α protocol (Inj. Dinoprost 12.5 mg, i/m, 11 days apart with natural breeding from 72-144 hours of second PG inj.) and NC Synch protocol (PG 12.5 mg - GnRH 0.004 mg - PG 12.5 mg - GnRH 0.004 mg on days 0, 8, 15 and 18, respectively with natural breeding during 19-21 days) using standard management practices and 3rd group was kept as untreated control. All the goats were dewormed before initiation of treatment. The estrus response (100% each), duration of estrus, pregnancy rate at 60 days post-breeding (55.55 vs. 44.44 and 55.55 %), and kidding rate (100% each) were statistically same in control and synchronized goats. However, twins were in almost 50% of kidding under the NC Synch group compared to 25% in Double PG protocol and 40% in the control group, with almost 100% kid survival till weaning. Thus, NC Synch Protocol was better in terms of pregnancy rate (55 vs. 44%) and fecundity (1.5 vs. 1.0) over double PGF2α protocol, and even untreated control goats.

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