Skip to main content

Advertisement

Table 2 Results obtained on G2 mule duck traits. Statistical significance of the effects of grand-maternal (GM) diet, year, sex and year by sex interaction on G2 mule duck traits (paternal grand-sire effect is not given), and least square means (± SE) of GM dieta

From: Influence of grand-mother diet on offspring performances through the male line in Muscovy duck

  N GM diet Year Sex Year x sex Met-deficient Control
Growth traits        
 Body weight, 4 weeks 133 *** ns *** - 1326 ± 10d 1397 ± 11c
 Body weight, 8 weeks 134 *** *** *** - 2814 ± 19d 2913 ± 21c
 Body weight, 12 weeks 133 * *** Ns - 3390 ± 23d 3458 ± 25c
 Weight gain, 4–8weeks 133 ns *** ns -   
 Weight gain, 8–12weeks 133 ns ns *** - 577 ± 19 545 ± 21
 Weight gain, 4–12weeks 132 ns *** *** -   
Force-feeding (FF) traits        
 Weight gain during FF 130 ** ns *** - 1609 ± 23c 1502 ± 25d
 Body weight, 14 weeks (end FF) 131 ns ** *** - 5016 ± 30 4960 ± 33
 Feed consumption during FF 131 ns *** *** - 14071 ± 48 14026 ± 53
 Ratio FC/WG during FF 129 *** ns *** - 8.78 ± 0.15c 9.58 ± 0.17d
Carcass traits        
 Carcass weight (CW) 129 ns * *** -   
 Magretb weight 131 ns ns * - 367.1 ± 3.4 364.5 ± 3.7
 Ratio (magret/carcass) 128 ns * ns -   
 Magret muscle weight 131 ns ns ns -   
 Ratio (fat + skin/magret) 131 ns ns ns -   
 Abdominal fat weight (AF) 131 * ns ** - 156.7 ± 2.7c 146.5 ± 2.9d
 Ratio AF/CW % 128 * ns ns - 3.45 ± 0.05c 3.27 ± 0.06d
 Liver weight (LW) 131 ns ns ns ***   
 Ratio (LW/CW) 128 ns ns ** ** 12.1 ± 0.3 11.9 ± 0.3
 Liver melting rate 131 ns *** *** **   
Blood metabolites        
 Glucose mid-FF (g/L) 129 ns ns ** -   
 Glucose end-FF (g/L) 105 + ns *** - 3.27 ± 0.19 2.83 ± 0.20
 Triglycerides mid-FF (g/L) 129 ns *** ns -   
 Triglycerides end-FF (g/L) 105 * ns ns - 0.85 ± 0.06c 0.64 ± 0.07d
  1. aLeast square means of GM diets are given for traits showing an effect of GM diet (P < 0.10) and also for traits showing a significant GM effect in the Muscovy duck progeny (P < 0.05)
  2. b“Magret” is the Pectoralis major with skin of a force-fed duck; FF = Force Feeding
  3. ***P < 0.001; **P < 0.01; *P < 0.05; +P < 0.10; ns: not significant; ‘-‘interaction not included in the model
  4. c,dValues within a row with different superscripts differ significantly at P < 0.05