EFFECT OF GRADED LEVELS OF CONCENTRATE SUPPLEMENTION ON MILK YIELD AND COMPOSITION OF GRAZING WHITE FULANI COWS. IN MAYO-BELWA SUB-HUMID, NIGERIA

FUDMA Journal of Agriculture and Agricultural Technology Pub Date : 2023-12-15 DOI:10.33003/jaat.2023.0903.09

FATIMA. A. Bashir, I. Muhammad

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Abstract

A 98-day feeding trial was conducted at Sebore Farm along Mayo-Belwa-Ngurore road, Mayo-Belwa Local Government Area (LGA) of Adamawa State to determine the effect of graded levels of concentrate supplementation on milk yield, milk composition, body conformation and live weight changes of White Fulani cows. The objective of this study was to determine the extent to which supplementary feeding improves milk yield and quality of lactating White Fulani cows grazed on mixture of Andropogon gayanus (Gamba grass) and Panicum maximum (Guinea grass). Twelve White Fulani cows weighing average of 250±2.217kg with average age of 5±1.5 years between 2nd and 3rd lactations, were subjected to four dietary treatments: T1 (control), T2 (3kg concentrate), T3 (4kg concentrate) and T4 (5kg concentrate) per head per day. The treatments consisted of three replicates in a randomized complete block design (RCBD) experiment. Milk yield was measured with a cylinder which is graduated in litres. The chemical composition of milk was carried out to determine milk protein, fat, total solids, ash vitamins, minerals, pH and density. The live-weight changes were calculated by subtracting the initial weight from the final weight. The result indicated that milk yield was significantly (P<0.05) different among treatments with T4 showing the highest milk yield of 1.89±0.059 litres per day while T1 had low values of 0.78±0.013 litres per day. The live-weight changes showed a significant (P<0.05) increase with increasing level of supplementation up to 4kg at (T3) but there was no significance (P>0.05) difference between treatments 3 and 4. T2, T3& T4) had significantly (P<0.05) improved milk yield and live weight gain than the control. The study revealed that supplementary feeding of grazing White Fulani cows with concentrate was beneficial. Treatment 4 with 4kg supplementation is therefore recommended based better on milk yield and live-weight gain

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分级补充精料对放牧的白富拉尼奶牛产奶量和组成的影响。尼日利亚马约-贝尔瓦半湿润地区

在阿达马瓦州 Mayo-Belwa-Ngurore 公路沿线的 Sebore 农场进行了一项为期 98 天的饲养试验，以确定分级精料补充水平对白富拉尼奶牛产奶量、牛奶成分、体形和活重变化的影响。本研究的目的是确定补充饲喂在Andropogon gayanus（Gamba草）和Panicum maximum（几内亚草）混合物上放牧的泌乳白富兰奶牛对牛奶产量和质量的改善程度。12 头白富拉尼奶牛平均体重为 250±2.217 千克，平均年龄为 5±1.5 岁，处于第 2 和第 3 个泌乳期：T1（对照组）、T2（3 千克精料）、T3（4 千克精料）和 T4（5 千克精料）。在随机完全区组设计（RCBD）实验中，处理由三个重复组成。用刻度为升的量筒测量牛奶产量。牛奶的化学成分测定包括牛奶蛋白质、脂肪、总固形物、灰分、维生素、矿物质、pH 值和密度。活重变化的计算方法是用最终重量减去初始重量。结果表明，处理 3 和处理 4 的产奶量差异显著（P0.05）。与对照组相比，T2、T3 和 T4 的产奶量和活重增重明显提高（P<0.05）。研究表明，给放牧的白富兰奶牛补充精料是有益的。因此，基于更好的产奶量和活体增重，建议采用添加 4 千克精料的处理 4。

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FUDMA Journal of Agriculture and Agricultural Technology

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