Advancement of puberty and enhancement of seminal characteristics by supplementation of trace minerals to bucks
| Autor: | I. J. Reddy, Sellappan Selvaraju, A. Arangasamy, N. M. Soren, Pushpa Rani Guvvala, M. Venkata Krishnaiah, K. S. Roy, J.P. Ravindra, N. Manohar |
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| Rok vydání: | 2018 |
| Předmět: |
Male
Animal feed Semen Context (language use) Biology Semen analysis 03 medical and health sciences Semen quality 0302 clinical medicine Animal science Food Animals medicine Animals Sexual maturity Dry matter Sexual Maturation Small Animals Sperm motility 030219 obstetrics & reproductive medicine medicine.diagnostic_test Equine Goats 0402 animal and dairy science 04 agricultural and veterinary sciences Animal Feed Spermatozoa 040201 dairy & animal science Diet Trace Elements Semen Analysis Zinc Dietary Supplements Animal Nutritional Physiological Phenomena Animal Science and Zoology Copper |
| Zdroj: | Theriogenology. 110:182-191 |
| ISSN: | 0093-691X |
| DOI: | 10.1016/j.theriogenology.2018.01.008 |
| Popis: | Attainment of puberty in animals is dependent on their age, body weight, nutritional status, genetic and environmental conditions. Nutritionally, organic minerals are suggested to improve semen production, sperm motility and male fertility. In this context, role of organic zinc (Zn) and copper (Cu) in advancing male puberty and semen characters in Osmanabadi goats were studied. Forty one (n = 41) bucks (Aged 5 months) were divided into ten groups and the dietary treatments comprised of a control group (basal diet; without additional trace mineral supplementation) and nine treatment groups that received, in addition to the basal diet, various doses of trace minerals (mg) on per kg dry matter basis, organic Zn as low Zn20, medium Zn40 and high Zn60, organic Cu as low Cu12.5, medium Cu25, high Cu37.5 and combination of organic Zn + Cu as low Zn20 + Cu12.5, medium Zn40 + Cu25, high Zn60 + Cu37.5, respectively fed for a period of 8 months. Bucks fed organic trace minerals reached puberty 28-35 days earlier than control group. In addition, improvement (P .01) in testosterone hormone (ng/ml) levels (control: 1.63 ± 0.07 VS Zn60: 2.54 ± 0.02; Cu12.5: 6.17 ± 0.05; Cu25: 3.01 ± 0.04; Cu37.5: 2.39 ± 0.06; Zn20 + Cu12.5: 1.94 ± 0.02; Zn60 + Cu37.5: 2.44 ± 0.16 at 240 days), semen production capacity (sperm concentration, volume, mass motility) and semen quality (higher progressive motility, velocity, sperm membrane integrity and acrosome integrity) were observed in supplemented groups (P .05) than the control bucks. The present study demonstrated that, additional feeding of organic Zn and Cu to growing male goats advanced onset of puberty and improved quantitative and qualitative semen characteristics. The results also implied that the organic Cu had a significant effect on overall performances of bucks as compared to Zn alone or Zn and Cu in combination. |
| Databáze: | OpenAIRE |
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