Assessment of Some Productive and Reproductive Traits of Sudan Desert Goats under Conventional and Supplemented Feeding Systems
Assessment of Some Productive and Reproductive Traits of Sudan Desert Goats under Conventional and Supplemented Feeding Systems
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Date
2010
Authors
Bushara Hassan El.Tahir Ali
Journal Title
Journal ISSN
Volume Title
Publisher
University of Khartoum
Abstract
This study was undertaken to evaluate the productive and
reproductive performance of Sudanese Desert goats under the traditional
management systems with supplemented feed containing different energy
levels with iso-nitrogenous protein. Also to investigate the effects of
rainy and dry seasons on the productive and reproductive performance of
desert goats. Hence, the experiment was undertaken to evaluate the
effects of supplemented feed with three different levels of energy and isonitrogenous
protein(A,B,C ) compared to unsupplemented feed group (D)
on kids performance (birth weight, weaning weight, post-weaning weight
and mortality), productive performance (milk yield, lactation period, milk
composition and indices of doe productivity) and reproductive
performance (kidding interval, gestation length, litter size, post-partum
anestrus and puberty). Experiment was also undertaken to determine the
effect of season mainly rainy and dry periods on kids performance,
productive performance and reproductive performance.
Kid's performance analysis demonstrated that the birth weight,
weaning weight, post-weaning weight and kid's mortality percentage was
positively affected by feeding supplemented groups; high energy (A),
medium energy (B) and low energy (C) compared with unsupplemented
group (D). Exception with kid's mortality, kid's performance differed
significantly (P<0.05). Supplemented feed group containing higher
energy (A) secured the highest values compared with unsupplemented
group (D). Also, the effect of season (rainy and dry) analysis on the kid's
performance was demonstrated. Rainy season compared with dry season
differed significantly (P<0.05). Kid's performance of those kidded on
rainy season had secured the highest values compared with kid's borned
on dry season.
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Reproductive performance of the experimental goats analysis
demonstrated that the gestation yield, kidding interval, litter size, post
partum anestrus and puberty was affected by feed supplemented groups;
high energy (A), medium energy (B) and low energy (C) compared with
unsupplemented group (D). Exception with litter size, reproductive
performance of experimental goats differed significantly (P<0.05).
Supplemented feed group containing higher energy (A) secured the
superior values compared with unsupplemented group (D). The effect of
season on reproductive performance was also analyzed. Reproductive
performance of experimental goats differed significantly (P<0.05).
Reproductive performance of experimental goats on rainy season secured
the superior values compared with dry season.
Productive performance of the experimental goat's analysis
demonstrated that the milk yield, lactation period, indices of doe
productivity and milk composition was affected by supplemented feed
groups compared with unsupplemented group. Productive performance of
experimental goats significantly differed (P<0.05). Supplemented feed
groups (A, B and C) had the higher values compared with
unsupplemented group (D). Also, the effect of season on productive
performance of experimental goats differed significantly (P<0.05).
Productive performance of experimental goats on rainy season secured
higher values compared with dry season.
Therefore, it is concluded that feeding supplemented groups; high
energy (A), medium energy (B) and low energy (C) compared with
unsupplemented group increased birth weight, weaning weight, postweaning
weight, milk yield, indices of doe productivity, lactation period
and milk composition. Gestation period, kidding interval, post-partum
anestrus and puberty were decreased. However, supplementing feed with
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different energy levels had no affect on kid's mortality and litter size. This
study concluded that, the rainy season compared with dry season
increased birth weight, weaning weight, post-weaning, litter size, milk
yield, indices of productivity, lactation period and milk composition .On
the other hand, kid's mortality, gestation period, kidding interval, pospartum
anestrus and puberty were positively decreased
Description
A Thesis Submitted to the University of Khartoum, in Fulfillment of the Requirements for the Degree of Doctor of Philosophy (PhD) in Animal Production
Keywords
University of Khartoum
Productive Traits
Reproductive Traits
Sudan Desert Goats
Conventional Feeding Systems
Supplemented Feeding Systems
Citation
Bushara Hassan El.Tahir Ali, Assessment of Some Productive and Reproductive Traits of Sudan Desert Goats under Conventional and Supplemented Feeding Systems .- Khartoum : University of Khartoum, 2010 .- 150p. : illus., 28cm., Ph.D.