Effect of Diets Containing Whole White Lupin Seeds on Milk Composition and Yield of Rabbit Does and Performance and Health of their Litters
The aim of this study was the evaluate the effect of lactation and weaning diets based on whole white lupin seeds (Lupinus albus cv. Amiga) on milk composition and yield of the non-pregnant rabbit does, as well as on performance and health of their litters. The lactation diet SL contained both soybean and sunflower meals as the main protein source, whereas the lactation diet LL was based on whole white lupin seeds. The weaning diet SW had soybean meal as the main protein source, whereas the weaning diet LW was based on whole white lupin seeds. A total of 32 (16 per treatment) Hyplus PS 19 rabbit does (all does at the 2nd parturition) were allocated to two groups and fed one of the two experimental lactation diets for 30 days. The litters were standardised to 9 kits on the day of birth, and were fed one of the two weaning diets from 17 to 72 d of age. At the weaning (30 d of age), 6 rabbits per litter were used for the growth performance and health risk index evaluation. There was a better feed conversion ratio (P=0.003) between 1 and 21 day of the lactation in the does fed the LL diet than in those fed the SL diet. There was a higher milk yield between 22 and 30 day of the lactation (P=0.044), as well as for the entire lactation (P=0.094), in the rabbit does fed the LL diet. At 21 days of lactation, there was a significantly lower dry matter and protein content in milk from the does fed the LL diet. However, protein output per kg live weight was not significantly affected by dietary treatment. Milk fat content was non-significantly higher and fat output per kg live weight turned out significantly higher in the does fed the LL diet. Milk of the does fed the LL diet contained more oleic, a-linolenic and EPA acid and less linoleic acid and short-chain fatty acids. There was a better milk conversion in litters of the rabbit does which were fed the LL diet (1.96 vs. 2.04, P=0.048). There was no mortality of kits before weaning.
|Projekt||Udržitelný rozvoj chovu hospodářských zvířat v evropském modelu multifunkčního zemědělství|
|Oddělení||Fyziologie výživy a jakost produkce|
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