Effect of high fat diets on the performance and food intake of primiparous and multiparous rabbit does
- 1 April 1998
- journal article
- research article
- Published by Cambridge University Press (CUP) in Animal Science
- Vol. 66 (2), 491-499
- https://doi.org/10.1017/s1357729800009668
Abstract
The influence of high fat diets on several production traits of primiparous and multiparous rabbit does was studied in 246 lactations from a total of 61 crossbreed rabbit does (Californian × New Zealand). Starting with a control diet (diet C) with 26 g ether extract (EE) per kg dry matter (DM), two isoenergetic diets were formulated adding fat from vegetable sources up to 99 g EE per kg DM (diet V) or animal sources up to 117 g EE per kg DM (diet A). Digestible energy/digestible protein ratio (DE/DP) was maintained between 82 and 87 kj/g. Food intake decreased with high fat diets compared with the control diet during gestation (P ‘lt; 0·001), which implied a decrease in the DE intake (P < 0·01 and P < 0·05 for primiparous and multiparous does, respectively). Fat addition did not affect food intake of primiparous does during lactation (101·8,106·9 and 103·7 g DM per day per kg live weight (M)0·75 for C, V and A diets, respectively) but increased the DE intake (1121 kj/day per kg M°0·75 for C diet cf. 1325 for V and 1264 for A diets; P < 0·01) and reduced does' weight losses at the end of lactation (F > 0·05). However, multiparous does on C diet showed a greater food intake during the last 2 weeks of lactation (110·6 for C diet v. 101·5 and 98·9 g DM per day per kg M0·75 for V and A diets, respectively; P < 0·001). High fat diets improved significantly the productive parameters at the 21st day of lactation: increasing litter size (P < 0·01 for multiparous does) and weight (P < 0·01 and P < 0·001 for primiparous and multiparous does, respectively) and decreasing the food conversion ratio (P < 0·001). An increase of dietary fat content decreased solid food intake of litters during the last 2 weeks of lactation (P < 0·01 and P < 0·001 for primiparous and multiparous does, respectively) but only affected their solid DE intake slightly. In conclusion, high fat diets seem to improve the productivity of lactating does and their corporal condition during the first lactation.Keywords
This publication has 12 references indexed in Scilit:
- Effects of dietary energy level and source on foetal development and energy balance in concurrently pregnant and lactating primiparous rabbit doesAnimal Science, 1996
- Effect of dietary energy level, addition of fat and physiological state on performance and energy balance of lactating and pregnant rabbit doesAnimal Science, 1995
- Effect of diet composition on the production of rabbit breeding does housed in a traditional building and at 30°CAnimal Feed Science and Technology, 1995
- Effect of remating interval and diet on the performance of female rabbits and their littersAnimal Science, 1993
- Prediction of the digestible energy and digestibility of gross energy of feeds for rabbits. 2. Mixed dietsAnimal Feed Science and Technology, 1992
- Effect of diet and of remating interval on milk production and milk composition of the doe rabbitAnimal Science, 1989
- The effects of energy intake during pregnancy in doe rabbits on pup birth weight, milk output and maternal body composition change in the ensuing lactationThe Journal of Agricultural Science, 1986
- Changes in body composition during pregnancy and lactationProceedings Of The Nutrition Society, 1986
- Energy and nitrogen metabolism of lactating rabbitsBritish Journal of Nutrition, 1983
- A note on the retention of energy and nitrogen in rabbitsAnimal Science, 1975