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The salt requirement of single comb white leghorn layers under local condition / by Rominio E. Mojica.

By:

Mojica, Rominio E [author]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : 1984. Cavite State University- Main Campus,Description: [44] pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

636.5085 M72 1984

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

College of Agriculture, Food, Environment and Natural Resources (CAFENR)

Abstract: This study was conducted to determine the effect of different salt levels on the performance of layers and to find out which would be the optimum level required to attain maximum egg production. One hundred twenty laying pullets were equally divided and randomly distributed to five different treatments, Each treatment was replicated three times with eight laying pullets in each replicate. The layers were fed with the same feeds without supplement during the first month of their laying period. At the start of the second month up to the fifth month, birds in Treatments I, II, III and IV were fed with 0.2%, 0.5%9 0.75% and 1.0% salt supplement, respectively. It was thoroughly mixed in the feeds. Treatment V served as the control lot. Birds in Treatment III had the highest egg pros dilation, and feed consumption. On the other hand, birds in Treatment II had the best feed efficiency and attained the lowest cost to produce a dozen of eggs. No significant difference was observed in egg production, percent egg production, feed consumption and feed efficiency during the first two months of laying. During the third month, significant differences were observed. At the last two months of the experiment, no significant difference was also observed. Mortality was caused mainly by prolapse and by infectious coryza which occurred on the fourth month of the experiment. However, salt supplementation showed no influence on the mortality of the birds. Based from the findings, the requirement of layers for salt was between the levels of 0.5% and 0.75%.

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Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	636.5085 M72 1984 (Browse shelf(Opens below))		Link to resource	Room use only	T-834		00005955

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Previous	636.5085 C88 1986 System of broiler feeding : ground yellow corn versus grated coconut meat /	636.5085 G13 1983 Production performance of broilers given feed and water soluble supplements /	636.5085 H42 1984 Response of broiler chicks to some commercial feeds /	636.5085 M72 1984 The salt requirement of single comb white leghorn layers under local condition /	636.5085 R33 1983 Response of H and N layer to commercial feeds /	636.5085 Sa5 1982 Performance of broilers fed with three different brands of commercial feeds /	636.5085 Su8 1988 Technology assessment : unconventional feedstuffs for broilers /	Next

Thesis (B.S.A.--Animal Husbandry) Don Severino Agricultural College

Includes bibliographical references.

College of Agriculture, Food, Environment and Natural Resources (CAFENR)

This study was conducted to determine the effect of different salt levels on the performance of layers and to find out which would be the optimum level required to attain maximum egg production. One hundred twenty laying pullets were equally divided and randomly distributed to five different treatments, Each treatment was replicated three times with eight laying pullets in each replicate. The layers were fed with the same feeds without supplement during the first month of their laying period. At the start of the second month up to the fifth month, birds in Treatments I, II, III and IV were fed with 0.2%, 0.5%9 0.75% and 1.0% salt supplement, respectively. It was thoroughly mixed in the feeds. Treatment V served as the control lot. Birds in Treatment III had the highest egg pros dilation, and feed consumption. On the other hand, birds in Treatment II had the best feed efficiency and attained the lowest cost to produce a dozen of eggs. No significant difference was observed in egg production, percent egg production, feed consumption and feed efficiency during the first two months of laying. During the third month, significant differences were observed. At the last two months of the experiment, no significant difference was also observed.
Mortality was caused mainly by prolapse and by infectious coryza which occurred on the fourth month of the experiment. However, salt supplementation showed no influence on the mortality of the birds. Based from the findings, the requirement of layers for salt was between the levels of 0.5% and 0.75%.

Submitted to the University Library 07/18/2007 T-834