Comparative study for semen quality traits and fertilizing ability for sudani drakes fed different energy and protein diets

Abstract: This study was conducted to investigate the effects of different dietary metabolizable energy (ME) and crude protein (CP) levels on semen quality traits, some seminal and blood plasma constituents as well as fertilizing ability of Sudani drakes. A total number of 54 Sudani drakes 32-wks-old, at the same time, 189 Sudani ducks were taken for detecting the fertilizing ability of drakes and then hatchability (%). All birds from drakes and ducks were weighed and divided into nine experimental groups of three replicates each, in a factorial arrangement design (3x3). The dietary treatments were 2750 (low), 2850 (medium) and 2950 (high)ME kcal/kg, each contained 15 (low), 17 (medium) and 19% CP (high) levels. The results indicate that Sudani drakes fed the high level of both ME and CP had significantly higher ejaculate volume and sperm concentration. Also, advanced motility of sperms was significantly improved for drakes fed high-ME diet, while, dead, coiled, clumping and coiled /total abnormal sperms were significantly decreased than those fed low-ME diet. The total abnorm!ll sperms was significantly decreased by increasing CP level in the diet only. Seminal plasma acid phosphatase activity and total lipids content were significantly higher for drakes fed high-ME diet than those fed low-ME diet. On the other hand, feeding high-CP diet resulted in a significant decrease of seminal plasma albumin concentration, ALT and AST enzymes activity than those fed medium-CP diet, while acid phosphatase activity was insignificantly decreased. Blood plasma acid phosphatase, ALT and AST enzymes activity were significantly (P≤ 0.05) increased, whereas, total lipids and cholesterol were insignificantly decreased for drakes fed high-ME diet comparing to those fed low-ME diet. Also, Blood plasma content of globulin and total cholesterol were significantly (P≤ 0.05) decreased, while acid phosphatase activity was significantly (P≤ 0.05) increased for drakes fed high-CP diet than those fed low-CP diet. Fertility and hatchability percentages were improved by increasing both ME and CP level in the diet without significant effect, the best values of them were occurred by the interaction of high-ME with high or medium-CP in the diet. These results indicate that a diet containing 2950 Kcal ME/kg with 17 or 19% CP could be used to improve the semen quality traits and fertilizing ability for Sudani drakes without adverse effect on fertility and hatchability traits for hatching eggs.

Key Words: Energy, Protein, Semen Quality, Fertility and Sudani Drakes.
Publication year 2015
Pages 455-469
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
serial title Egyptian Poultry Science Journal
ISSN 1110-5623
Author(s) from ARC
Agris Categories Animal feeding
Ducks. Energy. Fertility. Protein concentrates. Protein content. Proteins. Semen.
Proposed Agrovoc Semen Quality;Sudani Drakes;
Publication Type Journal