scholarly journals Estimation of dietary zinc requirement for laying duck breeders: effects on productive and reproductive performance, egg quality, tibial characteristics, plasma biochemical and antioxidant indices, and zinc deposition

2020 ◽  
Vol 99 (1) ◽  
pp. 454-462 ◽  
Author(s):  
Y.N. Zhang ◽  
S. Wang ◽  
K.C. Li ◽  
D. Ruan ◽  
W. Chen ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Dietary Zinc ◽  
Zinc Deposition

scholarly journals Influence of Genetic Selection for Growth and Broodstock Diet n-3 LC-PUFA Levels on Reproductive Performance of Gilthead Seabream, Sparus aurata

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 519
Author(s):  
Shajahan Ferosekhan ◽  
Serhat Turkmen ◽  
Cathaysa Pérez-García ◽  
Hanlin Xu ◽  
Ana Gómez ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Sparus Aurata ◽  
Genetic Selection ◽  
Growth Trait ◽  
High Growth ◽  
Gilthead Seabream ◽  
Commercial Diet ◽  
Selection For ◽  
Broodstock Diet

Genetic selection in gilthead seabream (GSB), Sparus aurata, has been undertaken to improve the growth, feed efficiency, fillet quality, skeletal deformities and disease resistance, but no study is available to delineate the effect of genetic selection for growth trait on GSB reproductive performance under mass spawning condition. In this study, high growth (HG) or low growth (LG) GSB broodstock were selected to evaluate the sex steroid hormones, sperm, egg quality and reproductive performance under different feeding regime of commercial diet or experimental broodstock diet containing either fish oil (FO) or vegetable oil (VO) based diet. Under commercial diet feeding phase, broodstock selected for either high growth or low growth did not show any significant changes in the egg production per kg female whereas egg viability percentage was positively (p = 0.014) improved by the high growth trait broodstock group. The experimental diet feeding results revealed that both growth trait and dietary fatty acid composition influenced the reproductive performance of GSB broodstock. In the experimental diet feeding phase, we observed high growth trait GSB males produced a higher number of sperm cells (p < 0.001) and also showed a higher sperm motility (p = 0.048) percentage. The viable egg and larval production per spawn per kg female were significantly improved by the broodstock selected for high growth trait and fed with fish oil-based diet. This present study results signifies that gilthead seabream broodstock selected on growth trait could have positive role in improvement of sperm and egg quality to produce viable progeny.

scholarly journals Effects of Soft Phosphate and Dicalcium Phosphate on Reproductive Performance and Egg Quality

1961 ◽  
Vol 40 (1) ◽  
pp. 74-80 ◽  
Author(s):  
T.A. Crowley ◽  
M.W. Pasvogel ◽  
A.R. Kemmerer ◽  
M.G. Vavich ◽  
A.A. Kurnick
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Dicalcium Phosphate

scholarly journals Reproductive Performances and Egg Qualities in African Catfish (Clarias gariepinus) Broodstocks Supplemented with Curcumin and Thyroxine Hormone

Omni-Akuatika ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 32
Author(s):  
Livana Dethris Rawung ◽  
Damiana Rita Ekastuti ◽  
Muhammad Zairin Junior ◽  
Min Rahminiwati ◽  
Ade Sunarma ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Gonadosomatic Index ◽  
Clarias Gariepinus ◽  
Density Lipoprotein ◽  
Cholesterol Concentration ◽  
Hepatosomatic Index ◽  
African Catfish ◽  
Hatching Rate ◽  
Significant Difference

An experiment was designed to study the effects of curcumin and thyroxine hormone supplementation in the diet to improve the reproductive performance of catfish broodstock by improving egg quality that eventually increases the production of seedlings. Catfish used in this experiment were supplemented with curcumin and thyroxine hormone through their feeds for 12 weeks. The results showed that there was no significant difference (p > 0.05) in the hepatosomatic index (HSI), gonadosomatic index (GSI), percentage of gonad maturity, total cholesterol concentration in the spawned eggs, high density lipoprotein (HDL) concentration in the spawned eggs, fertilization rate of spawned eggs, and hatching rate of fertilized eggs.  However, there were significant differences (p < 0.05) in the concentration of vitellogenin in the spawned eggs, egg diameter of the spawned eggs, and the triglycerides contents of spawned eggs. It was concluded that curcumin and thyroxine supplementations of African catfish increased vitellogenin concentrations and diameters of spawned eggs that have great potential to improve the reproductive performance.

Effect of Dietary Zinc and Niacin on Laying Hens Performance and Egg Quality

2008 ◽  
Vol 7 (8) ◽  
pp. 757-764 ◽  
Author(s):  
O.M. El-Hussein ◽  
M.O. Abd-Elsame ◽  
I.I. Omara ◽  
A.M. Fouad
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Dietary Zinc

Effect of using a dietary zinc-enriched biotechnological product on layer performance and egg quality in hens

2019 ◽  
Vol 305 ◽  
pp. S44
Author(s):  
M. Olteanu ◽  
C. Tabuc ◽  
D. Panaite ◽  
R. Turcu ◽  
A. Untea ◽  
...  
Keyword(s):  
Egg Quality ◽  
Dietary Zinc ◽  
Biotechnological Product
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