Towards Nutrient Cycling in an Integrated Cattle-Cassava Fodder Farming System

Che, Minh Tung (2001) Towards Nutrient Cycling in an Integrated Cattle-Cassava Fodder Farming System. Masters thesis, Universiti Pertanian Malaysia.

[img] PDF
2550Kb

Abstract

An initial investigation was undertaken at two commercial cattle farms (Kuang and Banting) prior to the actual experimentation of this thesis to elucidate the potential of environmental pollution from the unprocessed slurries of semiintensive cattle production units, which were washed into the nearby waterways. The biological oxygen demand (BOD) and chemical oxygen demand (COD) of wastewater from the above farms were 5,560 and 19,492 mg/L and 4,703 and 13,280 mg/L, respectively. These values are well above the national permissible standards of 50 mg/L BOD and 100 mg/L COD for wastewater discharged from livestock farms. Based on the above findings, experiments were conducted with the aim to reduce the impact of cattle manure on the environment. The first experiment was conducted to identify local cassava varieties, namely MM 92 (MM), Black Twig (BT) and Medan (MD) which were of high yielding and capable of extracting large quantities of nutrients from the soil fertilized with livestock manure. DIy fodder yields ofMM, BT and MD over the 8 harvests amounted to 8.6, 8.0 and 6.2 t/ha, respectively. They produced 2.2, 1.9 and 1.5 t/ha of crude protein (CP), respectively. The plant mortality rates were 9.9, 14.0 and 14.0% for MM, BT and MD, respectively. The results suggest that agronomically, MM is the most suitable variety. The second experiment consisting of two trials was conducted to compare the ruminal and intestinal disappearances of cassava fodder (CaF) and grain concentrates (GC) in cattle. Three Charolais-Kedab Kelantan heifers weighing 300 kg, and each fitted permanently with ruminal and duodenal cannulae were used. The cattle were given a basal diet consisting of 70% oil palm frond (OPF), 15% GC and 15% CaF at 1.5% DM (dry matter) of their body weight. The DM effective degradability of CaF and GC was similar at the outflow whilst the CP effective degradability of CaF was higher than that of GC. Cassava fodder containing more than 20% CP was a good protein supplement for ruminants. Both CaF and GC could serve as a source of readily available N for synthesis of rumen microbial protein. Intestinal DM and CP disappearances of GC were much higher than those of CaF, implying that GC provided a higher proportion of digestible bypass nutrients than CaF.

Item Type:Thesis (Masters)
Subject:Cattle - Feeding and feeds - Case studies
Subject:Cassava as feed - Case studies
Chairman Supervisor:Associate Professor Liang Juan Boo, PhD
Call Number:FP 2001 6
Faculty or Institute:Faculty of Agriculture
ID Code:10546
Deposited By: Mohd Nezeri Mohamad
Deposited On:04 May 2011 03:30
Last Modified:04 May 2011 03:31

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 04 May 2011 03:30.

View statistics for "Towards Nutrient Cycling in an Integrated Cattle-Cassava Fodder Farming System"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.