Genetic and non-genetic factors influencing the performance of the West African Dwarf (WAD) goat kept at the Kintampo Goat Breeding Station of Ghana

Ofori, S A; Hagan, Julius Kofi

doi:10.1007/s11250-020-02276-9

Cited by 16 publications

(10 citation statements)

References 13 publications

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“…Maternal permanent environmental effects might also important source of variation of birth weight and weaning weight as it influences the uterine capacity of the does for growth of the fetus and the effect of multiple births. These results were in agreement with those reported by Singh et al (1984), , Gowane et al (2011), Rout et al (2018) and Ofori and Hagan (2020) in different goat breeds.…”

Section: Resultssupporting

confidence: 94%

“…Higher birth weight and growth rate in male kids at later ages attributed to vigorous behaviour of male in suckling on account of differential hormone influence resulted in greater access of milk up to weaning, whose impact last at later ages also. Present results were in agreement of those reported by Sanchez et al (1994) in Granadina graded goats, Singh and Rai (2006) in Barbari in farmers flock, Singh et al (2008) in Jamunapari, Patel and Pandey (2013) in Mehsana goat, Ofori and Hagan (2020) in West African dwarf goat.…”

Section: Resultssupporting

confidence: 93%

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Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India

Singh

Dige

et al. 2021

Indian J of Anim Sci

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Barbari is most preferred goat breed of commercial farmers in India and information on its first parity growth, reproduction and production traits are valuable for making present and future genetic progress of flock. Data for present study pertains to 2,554 kids, progeny of 227 sires and 1645 dam born during 2001 to 2019 at Central Institute for Research on Goats, Makhdoom, Mathura, Uttar Pradesh. The least squares means of body weight of kids at birth, 3, 6, 9 and 12 months of age were 1.69±0.02, 7.48±0.13, 11.45±0.21, 16.08±0.28 and 20.21±0.33 kg, respectively. Period, sex, type of birth, and weight of dam at kidding were significant sources of non-genetic variation affecting body weights. The least squares mean of weight at first conception, weight at first kidding, age at first conception, age at first kidding and first gestation period were 18.04±0.07 kg, 21.79±0.09 kg, 381.65±2.51 days, 523.23±2.52 days and 143.33±0.21 days, respectively. Period of birth was major source of variation though these traits were also significantly affected by season and type of birth. The least squares means of first lactation 90-days milk yield, 140-days milk yield, total Lactation period milk yield, first lactation Length, milk yield per day of first lactation length and milk yield per day of first kidding interval were 50.22±0.41 litre, 69.94±1.05 litre, 57.32±0.53 litre, 123.01±0.53 days, 48.91±0.35 litre and 19.39±0.22 litres, respectively. Period, season, type of kidding, age and weight of dam at kidding were significant sources of non-genetic variation affecting above lactation traits. The h2 for growth and production traits were moderate whereas low to moderate for reproductive traits except weight at first conception and kidding which have moderate h2 estimates. The genetic and phenotypic correlations among the growth traits at different ages were moderate to high (0.3 to 0.8), however decrease with distant ages. Very high genetic and phenotypic correlation estimates were obtained among lactation traits suggesting that judicious selection of animals' for any lactation traits would yield consistent genetic improvement in the other milk production traits in the flock. The economic traits which were significantly influenced by non-genetic factors with high magnitude need attention for strategic management interventions such as planned breeding of females to avoid kidding in adverse weather conditions, better attention in suckling of milk for kids born with low birth weight, hygiene of shed, adequate supplementation of concentrate ration to those kids which have less pre-weaning growth regardless of type of birth, better nutrition level to maiden goats before and after mating and extension of weaning age for triplets by 10-15 days to obtain higher post weaning weight gains, optimization of breeding weight at first mating and strategic supplementary concentrate feeding as per milk yield.

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Section: Resultssupporting

confidence: 94%

Section: Resultssupporting

confidence: 93%

Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India

Singh

Dige

et al. 2021

Indian J of Anim Sci

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“…This may be attributed to availability of good quality and quantity of forage during summer for kids, pregnant and lactating ewes thereby translating to higher birth weight and weaning weight in autumn born kids. Our results agree with the reports of Ofori and Hagan (2020) in West African Dwarf (WAD), Bhusan et al (2012) in Jakhrana and Dudhe et al (2015) in Sirohi and Waiz et al (2018).…”

Section: Effect Of Year and Season Of Birthsupporting

confidence: 93%

“…The effect of sex was significant on all the traits with sexual dimorphism in favor of male. These results agreed with the results of Dudhe et al (2015) in Sirohi goats, Bhusan et al (2012) in Jakhrana, Ofori and Hagan (2020) in West African Dwarf (WAD) and Waiz et al (2018) in Sirohi. The variations may be attributed to anabolic effect of androgenic hormones which enhances the growth of long bones and lower cortisol secretion in male lambs (Assan, 2020).…”

Section: Effect Of Sexsupporting

confidence: 90%

“…Single-borns and kids born to pleuriparous dams were heavier at all ages. Ofori and Hagan (2020) in West-African-Dwarf goat also reported significant effect of parity on growth traits at all ages and effect of birth-type on BW and WW. Waiz et al (2018) in Sirohi kids and effect of birth-type on BW and W W. The advantage of single born kids may be attributed to less competition for nutrients and uterine space.…”

Section: Effect Of Birth-type and Paritymentioning

confidence: 80%

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Growth Performance of Purgi Goats under Field Conditions in Kargil District (Ladakh)

Alam

Rather

Nabi

et al. 2021

AJDFR

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Background: Purgi goats are native to Ladakh. They are used for fibre production and are known for the quality chevon. A study was, therefore, undertaken to study the effect of non-genetic factors on growth traits of Purgi Goats in its breeding tract. Methods: Flocks of 80 farmers from 8 villages of district Kargil were monitored to collect the data pertaining to growth traits during 2017 and 2018. The data so collected were suitably classified to study the major fixed effects like birth year, kid, parity of dam, season of birth and type of birth. Result: The averages were1.21±0.02, 3.62±0.02, 5.82±0.02, 8.73±0.03, 10.71±0.04 and 13.49±0.09 for BW, WW, 6MW, 9MW, 12MW and 18MW, respectively. The coefficients of variations of all the traits were low. Highest variability of 13.49 was observed for 18MW. The values of least squares means (LSM’s) of 0.96±0.05, 3.74±0.03, 5.80±0.05, 8.74±0.06, 10.87±0.08 and 13.91±0.19 for birthweight (BW), weaning weight (WW), six months body weight (6MW), nine months weight (9MW), yearling body weight (12MW) and eighteen months (18MW) weight were observed in the present study. The effects of sex of kids, season of birth and year of birth were significant (p less than 0.05) on all traits under study, whereas effect of birth-type was significant (p less than 0.05) on BW and WW and effect of parity was non-significant on all traits under study. All the traits BW, WW and 6MW were positively correlated among themselves. The correlations ranged from low (between BW and WW ) to high (WW with 9MW and 12MW).

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Characteristics and trait preferences of West African Dwarf goat keepers in Ghana

Ofori

Hagan

2021

Trop Anim Health Prod

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Genetic and non-genetic factors influencing the performance of the West African Dwarf (WAD) goat kept at the Kintampo Goat Breeding Station of Ghana

Cited by 16 publications

References 13 publications

Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India

Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India

Growth Performance of Purgi Goats under Field Conditions in Kargil District (Ladakh)

Characteristics and trait preferences of West African Dwarf goat keepers in Ghana

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