Genetic and environmental relationships of body weight, milk yield and litter size in Damascus goats

Constantinou, A.

doi:10.1016/0921-4488(89)90041-2

Cited by 26 publications

(18 citation statements)

References 9 publications

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“…Haldar et al (29) who concluded that larger litter size was strongly influenced by higher parity and higher previous litter size in these goats. Similar findings have also been reported in Damascus goats and crossbred native goats in north Mexico (35,36).…”

Section: Resultssupporting

confidence: 88%

Genotyping of Novel SNPs in BMPR1B, BMP15, and GDF9 Genes for Association with Prolificacy in Seven Indian Goat Breeds

Ahlawat

Sharma

Roy

et al. 2016

Animal Biotechnology

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Goats form the backbone of rural livelihood and financial security systems in India but their population is showing decreasing trend. Improvement of reproductive traits such as prolificacy offers a solution to stabilize the decreasing goat population and to meet the nutritional needs of growing human population. In the present study, six novel SNPs in three candidate genes for prolificacy (BMPR1B, BMP15, and GDF9) were genotyped in seven breeds of Indian goats to evaluate their association with litter size. Tetra primer ARMS-PCR and PCR-RFLP based protocols were developed for genotyping six novel SNPs, namely, T(-242)C in BMPR1B; G735A and C808G in BMP15; and C818T, A959C, and G1189A in GDF9 gene. The effect of breed was highly significant (p ≤ 0.01) on litter size but the effect of genotype was nonsignificant. The effect of parity on litter size was also significant in the prolific Black Bengal breed. The litter size differences observed between breeds are attributed to breed differences. Novel mutations observed at different loci in GDF9, BMP15, and BMPR1B genes do not contribute to the reproductive capability of the investigated breeds. Further studies with more number of breeds and animals exploring association of these novel SNPs with reproductive traits may be fruitful.

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Section: Resultssupporting

confidence: 88%

Genotyping of Novel SNPs in BMPR1B, BMP15, and GDF9 Genes for Association with Prolificacy in Seven Indian Goat Breeds

Ahlawat

Sharma

Roy

et al. 2016

Animal Biotechnology

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“…If the preceding LZ was large, there was a higher (P < 0.01) chance of getting larger LZ in subsequent kidding. These findings support the previous reports on does (Constantinou 1989;Mellado et al 1991;Amoah et al 1996) and on ewes (Laster et al 1972;Smith 1985;Gaskins et al 2005).…”

Section: Age Of Does Bw Parity Previous Lz and Days Opensupporting

confidence: 93%

Influence of age, body weight, parity and morphometric traits on litter size in prolific Black Bengal goats

Pan

Biswas

Majumdar

et al. 2014

Journal of Applied Animal Research

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Data on some linear traits along with age, body weight (BW) at breeding, parity and previous litter size (LZ) of 1008 pregnant Black Bengal goats were analysed using one-way Analysis of Variance. Higher age, heavier BW at breeding, higher parity order resulted more (P < 0.01) chance of triplet or quadruplet births as compared to that of single birth. Larger previous LZ resulted larger (P < 0.01) LZ in subsequent kidding. Most of the linear traits were higher (P < 0.01 or P < 0.05) in goats bearing multiple foetuses than in the goats bearing single foetus. The results of stepwise discriminant function suggested that heart girth, punch girth, BW, distance between trochanter major and pelvic triangle area might be the predictive indices for higher LZ.

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“…Though some genes have been identified for influencing litter size in goats (An et al, 2009; Chu et al, 2011; Feng et al, 2011), certain body weight along with desirable body condition at certain age and parity may be necessary for optimum metabolic requirements which in turn influence hypophyseal-pituitary-gonadal axis for more ovulation that ultimately determine the number of successful fertilization and subsequently litter size (Perry et al, 1991; Tummaruk et al, 2007). In earlier studies, body condition score, higher live weight, age, physical strength and less slopped rump angles were found to be associated with an increase possibility of multiple births in does (Constantinou, 1989; Mellado et al, 2008) and in ewes (Hall et al, 1994; Gonzalez et al, 1997; Gaskins et al, 2005; Aliyari et al, 2012). It may be assumed that the does with higher previous litter size may have potential to give multiple births in subsequent kidding.…”

Section: Resultsmentioning

confidence: 89%

Prolificacy and Its Relationship with Age, Body Weight, Parity, Previous Litter Size and Body Linear Type Traits in Meat-type Goats

Haldar

Pal

Datta

et al. 2014

Asian Australas. J. Anim. Sci

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Data on age and body weight at breeding, parity, previous litter size, days open and some descriptive body linear traits from 389 meat-type, prolific Black Bengal goats in Tripura State of India, were collected for 3 and 1/2 years (2007 to 2010) and analyzed using logistic regression model. The objectives of the study were i) to evaluate the effect of age and body weight at breeding, parity, previous litter size and days open on litter size of does; and ii) to investigate if body linear type traits influenced litter size in meat-type, prolific goats. The incidence of 68.39% multiple births with a prolificacy rate of 175.07% was recorded. Higher age (>2.69 year), higher parity order (>2.31), more body weight at breeding (>20.5 kg) and larger previous litter size (>1.65) showed an increase likelihood of multiple litter size when compared to single litter size. There was a strong, positive relationship between litter size and various body linear type traits like neck length (>22.78 cm), body length (>54.86 cm), withers height (>48.85 cm), croup height (>50.67 cm), distance between tuber coxae bones (>11.38 cm) and distance between tuber ischii bones (>4.56 cm) for discriminating the goats bearing multiple fetuses from those bearing a single fetus.

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Genetic and environmental relationships of body weight, milk yield and litter size in Damascus goats

Cited by 26 publications

References 9 publications

Genotyping of Novel SNPs in BMPR1B, BMP15, and GDF9 Genes for Association with Prolificacy in Seven Indian Goat Breeds

Genotyping of Novel SNPs in BMPR1B, BMP15, and GDF9 Genes for Association with Prolificacy in Seven Indian Goat Breeds

Influence of age, body weight, parity and morphometric traits on litter size in prolific Black Bengal goats

Prolificacy and Its Relationship with Age, Body Weight, Parity, Previous Litter Size and Body Linear Type Traits in Meat-type Goats

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