Estrus induction and conception rate with single and double dose of PGF2 in Jaffrabadi buffaloes

Abstract

ABSTRACT...... The prostaglandin and its synthetic analogue are considered as drug of choice in reproductive management. A total of twenty Jaffrabadi buffaloes with reproductive disorders were selected from cattle breeding farm, Junagadh. All twenty buffaloes (Group I) were treated with single dose of Prostaglandin (synthetic analogue, clostrinol, 2 ml) while the animals which did not respond (Group II) to first injection of Prostaglandin were subjected to second injection of Prostaglandin 11 days after first treatment. A total of six animals (30%) responded to first dose of PGF 2 , while eight animals (57%) responded to second dose of PGF 2 . The mean time required for induction of heat in first and second group was 70.24 ± 1.44 hrs and 56.86 ±1.96. The mean duration of estrus proper in first group was 19.18 ± 0.69 hrs, while in second group the mean duration was 16.13±0.42 hr. The conception rate in the present study was 43.05 per cent for the first group of animals and 49 per cent for the animal that were treated with second dose of PGF 2 . In conclusion, administration of PGF 2  at eleven days interval causes faster heat induction and better conception rate.

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

“…Animal breeding and reproduction are at the top of the animal production pyramid (Ahlawat et al, 2015) and is a key for successful dairy farming (Roelofsl and Kooij, 2015). Fertility remains as an important factor for the production and profitability in dairy herds.…”

“…In order to improve the low productivity of dairy cattle, selection of the most promising breeds and cross breeding of these indigenous breeds with highly productive exotic cattle have been considered a practical solution (Tadesse, 2010). Fertility in farm animals may be expected towards of estrus synchronization (Islam, 2011) which is one of the alternatives for the control and manipulation of reproduction (Ahlawat et al, 2015).…”

Challenges and Opportunities on Estrus Synchronization and Mass Artificial Insemination in Dairy Cows for Smallholders in Ethiopia

“…In general, the most challenging factors for the success of ES and mass AI service delivery in dairy cows for smallholders in Ethiopia are the absence of a data recording system, lack of clearly defined share of responsibilities among stakeholders, poor communication and collaboration among stakeholders from the kebele to national level, lack of motivations and skills of AI technicians due to lack of on career training, improper selection of cows/heifers, inseminating large number cows/heifers in one day by one or two AI technicians, and lack of support and readily available inputs (car or motor bicycle); all these cumulative of factors consequently contributed to the unsuccessfulness of the service [9,10,17,[19][20][21][22][23][24][33][34][35][36][37][38]. Also, almost in all areas of the country, most smallholders must travel with their cows a long distance to get AI service since AI technicians are unable to get transport facilities (motor bicycles, fuel, etc.)…”

“…In spite of the wide application of ES and mass AI, the rate of success in our country is still low [1,[9][10][11][12][13][14][15][16][17]. Fertility in dairy cows may be expected towards of ES [18] which is one of the alternatives for the control and manipulation of reproduction [19]. Generally, effectiveness of ES followed by mass AI service/practice is below expectation of smallholder farmers in Ethiopia [1,2,[9][10][11][12][13][14][15][16][17][20][21][22][23][24][25][26][27][28][29][30][31].…”

Prostaglandin based estrus synchronization in cattle: A review

“…According to the reports of Ahlawat et al, (2015), Roelofs and Kooij (2015), and Gokhan et al (2010), animal breeding and reproduction are at the top of animal production pyramid indicating, good reproduction is a key for successful dairy operation with the highest fertility. For addressing food security and livelihood improvement in developing countries, strategic dairy sector development is the key.…”