[
    {
        "id": "osp-14092",
        "type": "article-journal",
        "title": "Evaluation of Hormonal Treatment with Sponges and PMSG on Reproductive Performance and Profitability of Awassi Sheep Reared under Semi-Intensive Management Systems",
        "author": [
            {
                "family": "Al-Karablieh",
                "given": "Emad"
            },
            {
                "family": "Abdelrahman",
                "given": "Mutassim M."
            }
        ],
        "URL": "https://omanscience.com/en/articles/evaluation-of-hormonal-treatment-with-sponges-and-pmsg-on-reproductive-performance-and-profitability-of-awassi-sheep-reared-under-semi-intensive-manag",
        "language": "en",
        "issued": {
            "date-parts": [
                [
                    2000
                ]
            ]
        },
        "container-title": "Journal of Agricultural and Marine Sciences",
        "volume": "5",
        "issue": "2",
        "page": "53",
        "DOI": "10.24200/jams.vol5iss2pp53-57",
        "publisher": "Sultan Qaboos University",
        "ISSN": "2410-1060",
        "abstract": "Intravaginal progesterone impregnated sponges and PMSG hormonal injection is a new herding practice for sheep introduced to farmers in order to synchronize estrous and superovulation to increase lambing rate, twinning rate, and to synchronize lambing. Sheep flocks, raised under a semi-intensive system, were selected and divided into two groups; control and treated (sponge and PMSG). The study was repeated for seven breeding seasons to evaluate the reproductive performance and profitability of this practice. Treated groups showed a significant increase (P < 0.001) in fertility, lambing, twinning, and prolificacy rates compared to controls. The average fertility for treated groups was 84.8% and whereas for controls, it was 62.7%. Lambing rate increased from 64.9% to 111.0% and twinning rate increased from 3.13% to 29.9% as a result of treatment. Partial budget analysis was used to determine the profitability of this practice. The incremental net return due to hormone treatment was 8.91 JD/ewe."
    }
]