Utilization of pineapple waste and coontail aquatic weed (Ceratophyllum demersum L.) in growing-finishing pigs diets
1984
Kunya Tuntivisoottikul
A digestibility trial and a trial to study the production performances of growing-finishing pigs fed rations containing dried pineapple waste products (DPWP) or dried coontail aquatic weed (DCAW) were conducted. Six male crossbred pigs (large White X Landrace) approximately 60 kg body weight, were used to determine the digestibility of DPWP and DCAW. In the second trial twenty-eight animals, 14 male and 14 female, initial weight 30 kg, were used in randomized complete block design for 7 dietary treatments: control and 10, 15 and 20 percent DPWP or DCAW. The results from the first growth period indicated that the level of DPWP and DCAW had no effect on average daily gain (ADG), feed conversion rate (FCR) and feed intake (F1), whereas total feed cost (TFC) per animal and feed cost per kg weight gain were significantly different (P0.01) with higher values for the rations containing 20 percent DCAW. In the second growth period, 60-90 kg body weight containing 13 percent CP and 3,100 Kcal Me/kg, no difference were found for FCR, TFC and FC whereas ADG was significantly higher (P0.05) for animal fed diets containing 15 percent DPWP and 10 percent DCAW compared to 15 percent and 20 percent DCAW but no difference was found compared to control and 10 and 20 percent DPWP. Graded evels of DPWP and DCAW did not significantly affect any production performances of pigs during 30-90 kg body weight. There were indications that the thickness of the backfat for animals under treatment 20 percent DPWP and 20 percent DCAW were less for the other animals, but no significant differences was found
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