Skip to main content
Article thumbnail
Location of Repository

Effect of Calcium Soap of Fatty Acids Supplementation on Serum Biochemical Parameters and Ovarian Activity during Out-of-the-Breeding Season in Crossbred Ewes

By Hayat H. M. El-Nour, Soad M. Nasr and Walid R. Hassan


This experiment aimed to evaluate the effect of calcium soap of fatty acid (CSFA) supplementation on serum biochemical and hormones and ovarian activity during out-of-the-breeding season in ewes. Twelve crossbred ewes, 2-3 years of age and weighting 45–55 kg, were allocated into two equal groups. The first group was control and the other was treated with 50 g/head of CSFA. All ewes were fed basal diet and treated with 60 mg of medroxy progesterone acetate intravaginal sponge for 12 day. At the third day of sponge removal, the CSFA-treated group was given 50 g/head of CSFA daily for two estrous cycles. During the estrus phase, ovarian activity was detected using ultrasonography in both groups. All ewes were then subjected to natural breeding and conception rate. Blood samples were collected from all ewes during treatment period. Results revealed significant (P < 0.05) increases in serum cholesterol, triglycerides, low-density lipoprotein cholesterol, glucose, and progesterone levels with decrease in calcium and phosphorous levels in treated group. In treated group, normal-size ovaries and more than one follicle on the ovaries were detected and pregnancy rate increased. In conclusion, CSFA supplementation was effective to maintain the reproductive performance when ewes were out of the breeding season

Topics: Research Article
Publisher: The Scientific World Journal
OAI identifier:
Provided by: PubMed Central
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.pubmedcentral.nih.g... (external link)
  • Suggested articles


    1. (2008). A .A b dE l - R a h m a n
    2. (1999). A dietary supplement of calcium soaps of fatty acids enhances luteal function in sheep,”
    3. (1953). A microcolorimetric method for the determination of inorganic phosphorus,”
    4. a v i o n ,R .N .L a h e r t y ,D .C o h e n ,D .L u i ,a n dD .G o s p o -darowicz, “Role of lipoproteins and 3-methylglutaryl co. enzyme A reductase in progesterone production by culture bovine granulosa cells,”
    5. (2010). Abo-El Maaty, “The effect of dietary supplementation with calcium salts of long chain fatty acids and/or l-carnitine on ovarian activity of Rahmani ewes,”
    6. (1995). An increase in serum lipids increases luteal lipid content and alters the disappearance rate of progesterone in cows,”
    7. (1977). Cholesterol determination in high density lipoproteins separated by three different methods,”
    8. Chronic chloropropamide therapy of noninsulin-dependent diabetes augments basal and stimulated insulin secretion by increasing islet sensitivity to glucose,”
    9. (1969). Determination of serum glucose by enzymatic method,”
    10. (1997). Dietary fats varying in their fatty acid composition differentially influence follicular growth in cows fed isoenergetic diets,”
    11. (1991). Dietinduced hyperlipidemia in cattle modifies the intrafollicular cholesterolenvironment,modulatesovarianfolliculardynamics, and hastens the onset of postpartum luteal activity,”
    12. (1981). Digestion, absorption and transport of lipids in ruminant animals,” in Lipid Metabolism In
    13. (2007). Effect of a calcium soap of fatty acids on reproductive characteristics and lactation performance of fat-tailed sheep,”
    14. (1978). Effect of feeding protein-protected lipidupon growth and reproductive development of yearling heifers,”
    15. (1991). Effects of calcium soaps of fattyacidsonpostpartumreproductivefunctioninbeefcows,”
    16. (1992). Effects of dietary energy on control of luteinizing hormone secretion in cattle and sheep,”
    17. (1997). Effects of dietary fat on follicular development and circulating concentrations of lipids, insulin, progesterone, estradiol-17β, 13,14-dihydro-15-keto-prostaglandin F2α,a n d growth hormone in estrous cyclic brahman cows,”
    18. (1991). Effects of dietary fat on metabolic disorders and reproductive performance of dairy cattle,”JournalofAnimalScience,vol.69,no.9,pp.3838–3852,
    19. (2002). Effects of dietary polyunsaturated fatty acids on ovarian and uterine function in lactating dairy cows,”
    20. (2010). Effects of rumen-protected polyunsaturated fatty acid on some reproductive performance in out of breeding season ewes,”
    21. (1974). Enzymatic determination of total serum cholesterol,”
    22. (1972). Estimation of the concentration of low-density lipoprotein cholesterol in plasma, without use of the preparative ultracentrifuge,”
    23. (1996). G.L.Williams,“Influenceofdietaryfatintakeandmetabolism on follicular growth in cattle,” Reproduction in Domestic Animals,
    24. (2003). Incorporation of refining oil bt-products in sheep diets,”
    25. (2010). Laparoscopic examination of ovarian activity and some metabolic changes in ewes supplemented with protected fat and growth hormone during estrous cycle,”
    26. (1989). Lupins and energy-yielding nutrients in ewes. II. Responses in ovulation rate in ewes to increased availability of glucose, acetate and amino acids,” Reproduction, Fertility and Development,
    27. (1998). Milk composition, postpartum reproductive activity and growth of lambs in Pelibuey ewes fed calcium soap of long chain fatty acids,”
    28. (2001). Nutrient Requirements of Dairy Cattle, National Academy Press,
    29. (1973). Performance of “kits” used for clinical chemical analysis of calcium in serum,”
    30. (2004). R.N.Funston,“Fatsupplementationandreproductioninbeef females,”
    31. (1993). Reproductive cycles (sheep and goats),”
    32. (1989). Roffle r ,a n dK .Z .B e y e r s ,“ R u m i n a lm e t a b -olism in nonlactating cows fed whole cottonseed or extruded soybeans,”
    33. (1986). Ruminal fermentation in vivo as influenced by long-chain fatty acids,”
    34. Serum triglycerides determined colorimetrically with an enzyme that produces hydrogen peroxide,”
    35. (1982). Statistical Methods,I o w a State
    36. (2001). Stimulation of calcium absorption and reduction in susceptibility to fasting-induced hypocalcaemia in pregnant ewes fed vegetable oil,”
    37. (1981). The effe c to fd a i r yf a to nm i l kc o m p o s i t i o n , ”i n Recent
    38. (2004). The effect of dietary fat inclusion on nutrient intake and reproductive performance in postpartum Awassi ewes,”
    39. (1995). The effect of ruminai starch degradability in the diet of Booroola crossbred ewes on induced ovulation rate and prolificacy,”
    40. (2011). The effects of replacing dietary carbohydrate with calcium salts of fatty acids on finishing lamb feedlot performance, blood metabolites, muscle fatty acid composition, and carcass characteristics,”
    41. (1985). The frequency of gonadotropin releasing hormone stimulation determines the number of pituitary gonadotropin releasing hormone receptors,”

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.