ABSTRACT

In a 5 week feeding trial, cottonseed meal was substituted br soyabean incat at.0,25,50,75 and 100°/h and the diets were respectively designated as (lids I ,2.'l and 5 in a conipletely randomized design. Feed intake, feed-to-gain ratio, body weight gain and the economics of production were investigated. Birds were lc(l a(i(l watered ad-libitum. The results showed that there were no signilean( dit'teicnces (P>0.05) in the toiai feed intake and feed-to-gain ratios among the trealinenis. 'Ihe birds' total body weight gain did not differ significantly (P>0.05) hut numerically diet 3 gave the highest weight gain (2666.60g) while diet I was the least (24z13.27g). 'Flie live weight of the birds fed diet 3 (filtered sigiiilicaiilly ( P 0from the other diets. Diet 3 was the highest (3066.66g) while diet I was the least (2746.66g). The dressed weight percentage of birds fed diet 2 (81.64) was signi lcaiitly higher (P<0.05) than for the birds led the oilier (lids. Ihe cut pails sliowc(.i no sigriiflcaii( (huterenccs ( P>O.05) among (lie birds (d (lie (icatti ICI it 1i 1-I he nutrient utilization analysis showed signi ficaiit di ftercnecs (l (I ( i ithe highest mean values (8 J .45). (60.81), (95.57). (66.79) and /.) l wtii iii crude fire, ether extract, ash and dry matter retentions respect i vet ' wiil (lie least (69.99) (30.20), (91.47), (44.88) and (76.77) lr tl iiinl Hrcs)ed1ively. Mineral utilization followed the smiie t.reiid diet .' was tin lii'li HI (69.08), ( 8l .72), (7 I .9 I ) lou phosphorus, J)otaSSiUiii, ca Ici uiii all(l ii Iagiirsi respectively while diet I was the lowest (49.09), (72.41), (55.00) and ((2.O I ) ir tin same parameters respectively. Diet 5 was found to be the cheapest (N29().0 I ) and savings were signiuicaritly (P<O.O5) improved with (lie use ol' this diet while (liets 1 and 3 had the least values of N285.94) and (N302.07) respectively for marginal revenue. From the foregoing, cottonseed meal had no adverse effect on the performance and economics of production of the birds. This is an indication that cottonseed meal can satisfactorily replace soyabean meal in broiler diets.

TABLE OF CONTENT

'l'ittle Page

Certification

Dedication

Acknowledgement

Abstract

Table of Content

List of tables

CHAPTER ONE

• I General ml roduci ion

.2 Statement ot the problem

I :; Objectives ol the StUd)'

.4 Justification

ChAP ['ER TWO: LITERATURE REVIEW ci

2.1 Alternative fèedstufTs: Panacea lbr high cost of leeds 4

2.2 Agronomic potentials of cotton plant 5

2.3 Cottonseed meal in Poultry Nutrition S

2A Effects oF cottonseed meal imiclusiomi omi the perlormance 7

Characteristics of' Broiler chickens

2.5 Limitations to use of cottonseed meal. 8

2.6 Solving the Gossypol problem iii cottonseed meal

2.7 Nutritive potential of soyabean meal. 10

2.8 FJT'ects of soyabean meal inclusion on performance of Broilem ('hickens I

2.9 Limnilations to use of Soyabean meal in Poultry Nutrition.

2. I U Detoxification ol anti-nutritional factors. I S

CLIA PTER 'I'll REE- I'1A'I'ERIALS AND METHODS 17

3. 1 Lxperrmiiental Site 1 7

3.2 Procurement and processing of cottonseed meal I!

3] I xperimnental Diets

3.4 Experimental Birds

3.5 Management of Birds I 9

3.6 Dala Collection 19

3.7 N uti'ieut Retention Thai

3 8 Carcass Yield I

3 9 iCOf loll flU AnalySiS I

3. 10 Chemical Analysis

3. I I Statistical Analysis

(IIAVETR IOtJR: RESULTS AND DISCUSSION

-i. I Proxuiiate colilpoSitioll ot (lie cottonseed iiical

'I .2 Proximate COmpOsition (%) of the Experimental I.)iet s

4.3 Performance characteristics of birds fed graded levels 2/

of cottonseed meal (4-8wks) of age

4.4 Carcass Evaluation of Broiler chickens fed graded .30

levels of cottonseed meal.

4.5 Organ proportions of the birds fec! graded levels of cottonseed meal

4.6 Nutrient utilization of diets containing dillèrent levels of

dietam-y cottonseed meal fed by broiler chickens (4-8wks) of age .35

4.7 Mineral utilization by broiler chickens fed varying levels

of cottonseed meal 38

'1.8 Cost Analysis of the diets containing dilferent levels of diet amy

coltonseed iieal by broiler cliickemis (4-8wks) of age.

5.0 CHAPTR  FIVE:

JUSTIFICATIION

REFERENCE