Effect of Pineapple Stem starch feeding on rumen microbial fermentation, blood metabolites, growth performance, carcass characteristics and meat quality of tattening Cattle

Name: Anchalee Khongpradit

LCSH: Kasetsart University -- Dissertations. Ph.D. (Animal Nutrition and Feed Technology) 2021

Classification :.LCCS: SF203

LCSH: Kasetsart University. -- Department of Animal Science -- Dissertations

LCSH: Beef cattle -- Feeding and feeds

LCSH: Cattle -- Feeding and feeds

LCSH: Rumen fermentation

LCSH: Rumen -- Microbiology

LCSH: Ruminants -- Feeding and feeds

LCSH: Pineapple -- Utilization

LCSH: starch

Abstract: Pineapple stem starch was evaluated to be acceptable to a new starch source in concentrate for fattening cattle. The research was divided into three experiments. The first experiment investigated the effects of different starch sources on fermentation in batch culture. Experiment 1, part 1: the study was conducted to determine the ruminal profile of starch sources replacing 40% in concentrate. Five treatments were: formulated concentrate (barley, corn, and wheat) (Control), cassava (CA), corn (GC), broken rice (BR), and pineapple stem starch (PS). Part 2, two starch sources (CA and PS) were measured the fermentation pattern. In the second experiment, four ruminally cannulated beef cattle were used to determine the effects of starch in GC, BR, CA, and PS on dry matter fractional degradation rates ruminal degradability. A 4 × 4 Latin squared was experimentally designed. Cattle were offered as a basal diet contained 40% of starch sources in concentrate and Napier grass silage (NS) as a roughage source. Non-linear regression models were conducted to fit an asymptotic exponential model estimating the degradation kinetics of the dry matter loss percentage of the four concentrates and roughage. In the third experiment, the experimental units comprised 36 feedlot dairy steers arranged as a 2 × 3 factorial in a completely randomized design. The first main effect (diet factors) consisted of GC, CA, or PS at 37% dry matter in the concentrate. The second main effect (feeding factors) consisted of feeding the concentrate from 1 to 206 days (short-term feeding) or 1 to 344 days (long-term feeding). The results of the first experiment revealed that pineapple stem starch was increased in total short-chain fatty acid (SCFA), and in particular, acetate production (P<0.01), leading to lower pH. This higher acetate might be explained by a higher abundance of acetate-producing R. amylophilus. Lactate production was higher for CA. The results of the second experiment, the SCFA was higher in PS and CA, especially for acetate (P<0.05). However, CA has produced more lactate and influences NS for the rate of disappearance. In the results of the third experiment, the effective degradability of concentrate was highest for PS. ADG of steers fed PS tended to be higher than those provided GC or CA. Calculated economic returns involving PS were higher profit than those generated from GC and CA. Pineapple stem starch could be a useful feed ingredient for feedlot steers as an alternative starch source for energy.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Suriya Sawanon

Role: Thesis Advisor

Name: Nitipong Homwong

Role: Thesis CO-Advisor

Created: 2021

Modified: 2025-07-26

Issued: 2025-07-26

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2564/anchalee-kho-all.pdf

CallNumber: SF203 .A53

eng

DegreeName: Doctor of Philosophy

Level: Doctoral Degraee

Descipline: Animal Nutrition and Feed Technology

Grantor: Kasetsart University

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