Supplementation of inorganic and organic zinc mixtures in feed of Boerka goats fed by oil palm fronds

Abstract

Zinc is an element of many enzymes and hormones having very important physiological functions in the body so that it influences the production and reproduction of animals including the activity of the rumen microflora in degrading fiber in a diet. The aim of this study was to improve the performances of goats offered oil palm fronds based diets through the supplementation of 35 ppm of Zn in the form of inorganic (ZnO) and organic zinc (Zn-methionine). Thirty mature male crossing Boer x Kacang (Boerka) goats were divided into five groups and randomly allocated to one of the five feed treatments as follows: P1: complete feed based on the palm oil fronds (Control), P2: P1 + 35 ppm Zn (100% Zn0), P3: P1 + 35 ppm Zn (75% Zn0 + 25% Zn-methionine), P4: P1 + 35 ppm Zn (50% Zn0 + 50% Zn-methionine), P5: P1 + 35 ppm Zn (25% Zn0 + 75% Zn-methionine). The experiment was conducted in a Completely Randomized Design of six replications. Increasing the proportion of Zn methionine in the mixtures elevated feed consumption, and the highest feed intake was observed in goats received 75% Zn-methionine/25% ZnO. Daily body weight gains was only affected (P<0.05) by the 75% Zn-methionine/25% ZnO supplement. The concentration of Zn in the blood increased significantly (P<0.05) when Zn methionine was added and it increased steadily as the proportion of Zn methionine greater in the mixtures, but the VFA compositions of the rumen were not affected (P>0.05) by Zn supplementation. It is concluded that the performances of goat fed complete diets based on the oil palm fronds could be improved by supplementation of inorganic and organic Zn mixture.

Dietary Levels of Pineapple Peels on Growth Performance, Reproductive Performance, Nutrient Digestibility and Carcass Characteristics of Weaner Rabbits

“…The trend indicates that as inclusion level of is increasing digestibility for all the parameters increases except for crude fibre. However, the values obtained for all the parameters followed the same trend and similar with the report of Ginting et al (2005). Which in his report gives digestibility valued as dry matter 90.44, moisture 82.85, crude protein 76.33, crude fibre 76.62, ash 52.00 ether extract 55.65, NFE 76.00.…”

Nutritional Support for Small Ruminant Development Based on Oil Palm By-products

“…Zn is not stored in the tissue of the animal so that it must be available on the daily basis. Supplementation of Zn at 35 ppm in diet composed of 30% (DM) OPF and was the sole roughage in the diet improved the DM intake and daily gain of growing goats (Ginting et al 2017a). The content of copper (Cu) in PPF and palm kernel cake (PKC) is high, but due to the limited intake of PPF, this high level of Cu might not be harmful.…”