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| Titel: |
Estimation des besoins énergétiques du porc local du Bénin en croissance entre 7 et 22 kg de poids vif |
| Auteur: |
Codjo, AB. |
| Verschenen in: |
Tropicultura |
| Paginering: | Jaargang 21 (2003) nr. 2 pagina's 56-60 |
| Jaar: |
2003 |
| Inhoud: |
Estimation of Energy Requirement of Benin Indigenous Pigs during Growing Period from 7 to 22 kg Liveweight. Thirty-six Benin indigenous piglets (18 castrated ad 18 females) were allocated to two isoproteinic experimental diets: diet HE contained 13.49 MJ metabolizable energy /kg DM while diet LE contained 12.24 MJ EM/kg DM, equivalent to 87.4% and 79.3% of energy allowances recommended by INRA (12) for improved growing pigs from 5 kg to 25 kg liveweight. Crude fiber level was 4.40% and 9.02% (as fed basis) in diet HE and diet LE respectively. The piglets were raised from 7 kg to 22 kg liveweight. Feed consumption, average daily gain and feed conversion ratio were 723 g/d and 709 g/d (p> 0.05); 200 g and 182 g (p> 0.05); 3.86 and 3.97 (p> 0.05); for pigs on diet HE and diet LE respectively. But metabolizable energy intake of pigs on diet HE was significantly higher (p< 0.01) than to those on low energy diet LE (9.75 MJ/d versus 8.68 MJ/d). This difference in energy intake has resulted in higher (p< 0.05) kidney fat (528 g versus 330 g), higher though non significant (p> 0.05) loin backfat thickness (1.3 cm versus 0.9 cm) and lower (p< 0.05) percentage of longissimus dorsi muscle (13.6% versus 15.4%) in pigs fed with diet HE compared to those on diet HE. Thus, for Benin local indigenous pig from 7 to 22 kg liveweight, the low energy allowance 12.24 MJ EM/kg DM looked more appropriate. High crude fiber level in diet has resulted in higher digestive tract percentage in pigs fed diet LE compared to those on diet HE. |
| Uitgever: |
Agri-overseas (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 10 gevonden artikelen
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