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Contribution to the study of vitellogenesis in birds Physiological phases and the role of folliculin in vitellogenesis
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A study on urpad beel in Goalpara District, Assam
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Biology of apple leafroller, Archips termias Meyrick (Lepidoptera: Tortricidae)
Cytogenetic analysis of ZZWW triploid silkworm (Bombyx mori)
1. The Integrated Project Planning and Management Cycle (IPPMC)
Stassanisation of Milk
Nira (Co 86032) - a new variety of sugarcane for Maharashtra
Donkioporia expansa - A lesser known wood destroyer in buildings
Economic importance of Pteridophytes
Fish life in relation to polluting influences in the Lake Champlain watershed
Physiological approach to an ideotype of sugar cane - a case with non-arrowing cane (Saccharum officinarum)
Gymnosperms of Sikkim, India
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Limitations of Using Microsoft Excel Version 2016 (MS Excel 2016) for Statistical Analysis for Medical Research
Phloem necrosis of coffee in Surinam
Anatomy of Mystus seenghala IV Nervous system
Integrated farming system for gardenland conditions of Coimbatore district - an over view
Tetrapleure (Tetrapleura tetraptera), an unknown African medicinal and spice plant
The origin and phylogenetic significance of the trochophoran larvae 2. evolutionary significance of the larvae of coelomate worms and mollusks
Comparison of rice bran and maize bran as feeds for growing and fattening pigs
Enterobacter amnigenus. An unusual human pathogen
Influence of Seriboost foliar application on leaf yield and leaf protein content in mulberry (Morus spp.), in relation to silkworm cocoon production
The identity of the lipstick mold of cultivated mushrooms agaricus bisporus
Advantages and disadvantages of bordeaux mixture and of lime-sulphur used on apples in the growing season
'Pan-sukh' disease of Rice in the Central Provinces
Geological age of the Ptilophyllum flora; a critical reassessment
Study of vitellogenesis in birds; physiological phases & role of folliculin in vitellogenesis
Evaluation of WCT coconut and Komadan coconut
Therapy for acne with saccharomyces boulardii
Evidence for Late Cretaceous N-S dextral shear in the west-central crystalline core, North Cascades, Washington
'Rajeshwari' - a high-yielding white seeded variety of sesame for Andhra Pradesh
Manufacture of Ricotta cheese from whey fortified with skim milk powder using different acidulants
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Factors affecting fruitfulness in durian (Durio zibethinus Murr.). I. Flowering and pollination
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Some Biological Applications of Organometallic Compounds
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Comparison of pregnancy rates with two estrus synchronization protocols in Italian Mediterranean Buffalo cows
Comparison of pregnancy rates with two estrus synchronization protocols in Italian Mediterranean Buffalo cows
Neglia, G.; Gasparrini, B.; Di Palo, R.; De Rosa, C.; Zicarelli, L.; Campanile, G.
Theriogenology 60(1): 125-133
2003
ISSN/ISBN: 0093-691X
PMID: 12620586
DOI: 10.1016/s0093-691x(02)01328-6
The aim in this study was to compare two estrus synchronization protocols in buffaloes. Animals were divided into two groups: Group A (n=111) received 100 microg GnRH on Day 0, 375 microg PGF(2alpha) on Day 7 and 100 microg GnRH on Day 9 (Ovsynch); Group B (n=117) received an intravaginal drug release device (PRID) containing 1.55 g progesterone and a capsule with 10mg estradiol benzoate for 10 days and were treated with a luteolytic dose of PGF(2alpha) and 1000 IU PMSG at the time of PRID withdrawal. Animals were inseminated twice 18 and 42 h after the second injection of GnRH (Group A) and 60 and 84 h after PGF(2alpha) and PMSG injections (Group B). Progesterone (P(4)) concentrations in milk samples collected 12 and 2 days before treatments were used to determine cyclic and non-cyclic buffaloes, and milk P(4) concentrations 10 days after Artificial insemination (AI) were used as an index of a functional corpus luteum. Cows were palpated per rectum at 40 and 90 days after AI to determine pregnancies. All previously non-cyclic animals in Group B had elevated P(4) (>120 pg/ml milk whey) on Day 10 after AI. Accordingly, a greater (P<0.01) relative percentage of animals with elevated P(4) 10 days after AI were observed in Group B (93.2%) than in Group A (81.1%). However, there was no difference in overall pregnancy rates between the two estrus synchronization protocols (Group A, 36.0%; Group B 28.2%). When only animals with elevated P(4) on Day 10 after AI were considered, pregnancy rate was higher (P<0.05) for animals in Group A (44.4%) than Group B (30.3%). The findings indicated that treatment with PRID can induce ovulation in non-cyclic buffalo cows. However, synchronization of estrus with Ovsynch resulted in a higher pregnancy rate compared with synchronization with PRID, particularly in cyclic buffalo.
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Accession: 003688000
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