Influence of organic phosphorus on reproductive performance and metabolic profiles of anoestrous Farafra ewes in subtropics at the end of breeding season

• Published in: Reproduction in domestic animals 2018-08, Vol.53 (4), p.904-913
• Main Authors: Senosy, W, Kassab, AY, Hamdon, HA, Mohammed, AA
• Format: Article
• Language: English
• Subjects: Animal Feed - analysis; Animal Nutritional Physiological Phenomena; Animals; Body weight; Breeding; Breeding seasons; Climate; Diet - veterinary; Dietary Supplements; Energy Metabolism - drug effects; Estrus; Follicles; Hematology; Hormones; Hot Temperature; Leukocytes; Metabolism; Metabolites; Methylamines - administration & dosage; Methylamines - pharmacology; Minerals; Monocytes; Organic phosphorus; Organophosphonates - administration & dosage; Organophosphonates - pharmacology; phosphorous; Phosphorus; Pregnancy; Reproduction; Reproduction - drug effects; reproductive performance; Reproductive status; Restoration; Seasons; Sheep - physiology; Sodium; Stress, Physiological; Supplements; Thyroid; Thyroid hormones; Ultrasound; Weaning
• ISSN: 0936-6768; 1439-0531
• DOI: 10.1111/rda.13183

Contents The effect of organic phosphorus on metabolic, haematological and hormonal status, restoration of ovarian functions and conception rate in anoestrous Farafra ewes in subtropics were evaluated. Anoestrous Farafra ewes (n = 24; 34.72 ± 0.52 kg body weight) were allocated into two equal groups: control and phosphorus groups. The ewes of phosphorus group were treated with sodium 4‐dimethylamino‐2‐methyl‐phenyl‐phosphonate as an organic bound phosphorous twice a week for successive 3 weeks. Ovarian follicle development and corpora lutea were checked three times a week till occurrence of oestrus using ultrasonography while pregnancy was confirmed at 30 days post‐service. Plasma metabolites, reproductive hormones, thyroid hormones and minerals were detected at weeks −2, −1, 0 (mating day) and + 4 weeks post‐oestrus. Phosphorus group had significantly (p