PMID- 22015161
OWN - NLM
STAT- MEDLINE
DCOM- 20120910
LR  - 20111214
IS  - 1879-3231 (Electronic)
IS  - 0093-691X (Linking)
VI  - 77
IP  - 1
DP  - 2012 Jan 1
TI  - Partial and total fish meal replacement by agricultural products in the diets 
      improve sperm quality in African catfish (Clarias gariepinus).
PG  - 184-94
LID - 10.1016/j.theriogenology.2011.07.032 [doi]
AB  - This study investigated the long-term effects of total and partial replacement of 
      dietary fish meal (FM) by a mixture of agricultural products on sperm quality of 
      African catfish Clarias gariepinus. Four isonitrogenous and isoenergetic diets 
      were formulated containing graded levels of either 50% FM and maize meal (diet 
      1); 25% FM mixed with crude sunflower oil cake (SFOC) and bean meal (BM) (diet 
      2); 12.5% FM mixed with sunflower oil cake, BM and ground nut oil cake (GOC) 
      (diet 3) and 0% FM mixed with de-hulled sunflower oil cake (SFOCD), BM and ground 
      nut oil cake (diet 4). Gonadosomatic index (GSI), sperm quality, plasma sex 
      steroids (11-keto testosterone [11-KT]; testosterone [T]; estradiol-17beta [E2]) 
      were evaluated on 10 to 24 fish fed on each diet. Sperm quality was assessed 
      using computer-assisted sperm analysis (CASA). Total replacement of fish meal by 
      plant products markedly increased sperm volume, spermatocrit, spermatozoa 
      integrity, and sperm motility. Fish fed diet 3 (12.5% fish meal) provided 
      intermediate results on sperm quality whereas the lowest values were obtained in 
      fish fed diets 1 and 2. In fish fed 0% fish meal (diet 4), androgen levels were 
      higher and estrogen levels were lower than in fish fed fish meal diets. Based on 
      dietary lipid and fatty acid analyses, these results suggest a positive impact of 
      short chain n-6 fatty acids on androgen synthesis and sperm quality. In 
      conclusion, a combination of ground nut oil cake, bean meal and sunflower oil 
      cake (preferably when the sunflower is dehulled) in African catfish diet improves 
      the sperm quality.
CI  - Copyright (c) 2012 Elsevier Inc. All rights reserved.
FAU - Nyina-Wamwiza, L
AU  - Nyina-Wamwiza L
AD  - Unit of Research in Organismal Biology, University of Namur (FUNDP), Namur, 
      Belgium.
FAU - Milla, S
AU  - Milla S
FAU - Pierrard, M-A
AU  - Pierrard MA
FAU - Rurangwa, E
AU  - Rurangwa E
FAU - Mandiki, S N M
AU  - Mandiki SN
FAU - Van Look, K J W
AU  - Van Look KJ
FAU - Kestemont, P
AU  - Kestemont P
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111019
PL  - United States
TA  - Theriogenology
JT  - Theriogenology
JID - 0421510
RN  - 0 (Gonadal Steroid Hormones)
SB  - IM
MH  - Animal Feed
MH  - Animals
MH  - Aquaculture/*methods
MH  - Catfishes/*physiology
MH  - Gonadal Steroid Hormones/blood
MH  - Male
MH  - Semen Analysis/veterinary
MH  - Spermatozoa/*physiology
EDAT- 2011/10/22 06:00
MHDA- 2012/09/11 06:00
CRDT- 2011/10/22 06:00
PHST- 2010/12/16 00:00 [received]
PHST- 2011/07/13 00:00 [revised]
PHST- 2011/07/19 00:00 [accepted]
PHST- 2011/10/22 06:00 [entrez]
PHST- 2011/10/22 06:00 [pubmed]
PHST- 2012/09/11 06:00 [medline]
AID - S0093-691X(11)00379-7 [pii]
AID - 10.1016/j.theriogenology.2011.07.032 [doi]
PST - ppublish
SO  - Theriogenology. 2012 Jan 1;77(1):184-94. doi: 
      10.1016/j.theriogenology.2011.07.032. Epub 2011 Oct 19.