Analysis of growth patterns in purebred Kambing Katjang goat and its crosses with the German Fawn

Y. Tsukahara, Yosuke Chomei, K. Oishi, A. K. Kahi, J. M. Panandam, T. K. Mukherjee, H. Hirooka

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The objective of this study was to investigate growth patterns of goats utilizing data from a crossbreeding program involving the exotic German Fawn (GF) and the indigenous Kambing Katjang (KK) goats. Growth curve models and growth curve parameters were compared and analyzed for different genotypes and litter types. A total of 20,393 weight-age data from 208 female goats belonging to various crossbreeding genotypes were individually fitted to four growth curve models (Brody, Bertalanffy, Gompertz and Logistic). The goodness of fit was highest in the Brody model in most cases. A comparison of R2 among genotypes showed that they were highest for KK. There were no significant differences of genotypes for estimated mature weight in the Brody model. The estimated mature weights for KK were significantly lower (P < 0.05) than for GF × KK (F1), backcrosses with 75% GF genes (BC) and F1 × F1 (F2) in the other models. The correlations between estimated mature weights and the maturing rates were lowest for BC. The genotype significantly (P < 0.01) affected the age at the constant degree of maturity (67% and 90% of mature weight) in all models. The BC genotype was the youngest at maturity and KK the oldest. All models well expressed the growth pattern of the target animals when they were older than 2.5 years of age. The results from the present study showed that the growth pattern may be altered by crossbreeding of KK with the GF breed.

Original languageEnglish
Pages (from-to)8-15
Number of pages8
JournalSmall Ruminant Research
Volume80
Issue number1-3
DOIs
Publication statusPublished - Nov 1 2008

Fingerprint

purebreds
Goats
goats
Genotype
Genetic Hybridization
Weights and Measures
Growth
genotype
German Fawn
breeds
Genes
animals
genes

All Science Journal Classification (ASJC) codes

  • Food Animals
  • Animal Science and Zoology

Cite this

Analysis of growth patterns in purebred Kambing Katjang goat and its crosses with the German Fawn. / Tsukahara, Y.; Chomei, Yosuke; Oishi, K.; Kahi, A. K.; Panandam, J. M.; Mukherjee, T. K.; Hirooka, H.

In: Small Ruminant Research, Vol. 80, No. 1-3, 01.11.2008, p. 8-15.

Research output: Contribution to journalArticle

Tsukahara, Y. ; Chomei, Yosuke ; Oishi, K. ; Kahi, A. K. ; Panandam, J. M. ; Mukherjee, T. K. ; Hirooka, H. / Analysis of growth patterns in purebred Kambing Katjang goat and its crosses with the German Fawn. In: Small Ruminant Research. 2008 ; Vol. 80, No. 1-3. pp. 8-15.
@article{f96fd86c4fe04c29a4f041d10a99d4a5,
title = "Analysis of growth patterns in purebred Kambing Katjang goat and its crosses with the German Fawn",
abstract = "The objective of this study was to investigate growth patterns of goats utilizing data from a crossbreeding program involving the exotic German Fawn (GF) and the indigenous Kambing Katjang (KK) goats. Growth curve models and growth curve parameters were compared and analyzed for different genotypes and litter types. A total of 20,393 weight-age data from 208 female goats belonging to various crossbreeding genotypes were individually fitted to four growth curve models (Brody, Bertalanffy, Gompertz and Logistic). The goodness of fit was highest in the Brody model in most cases. A comparison of R2 among genotypes showed that they were highest for KK. There were no significant differences of genotypes for estimated mature weight in the Brody model. The estimated mature weights for KK were significantly lower (P < 0.05) than for GF × KK (F1), backcrosses with 75{\%} GF genes (BC) and F1 × F1 (F2) in the other models. The correlations between estimated mature weights and the maturing rates were lowest for BC. The genotype significantly (P < 0.01) affected the age at the constant degree of maturity (67{\%} and 90{\%} of mature weight) in all models. The BC genotype was the youngest at maturity and KK the oldest. All models well expressed the growth pattern of the target animals when they were older than 2.5 years of age. The results from the present study showed that the growth pattern may be altered by crossbreeding of KK with the GF breed.",
author = "Y. Tsukahara and Yosuke Chomei and K. Oishi and Kahi, {A. K.} and Panandam, {J. M.} and Mukherjee, {T. K.} and H. Hirooka",
year = "2008",
month = "11",
day = "1",
doi = "10.1016/j.smallrumres.2008.07.030",
language = "English",
volume = "80",
pages = "8--15",
journal = "Small Ruminant Research",
issn = "0921-4488",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Analysis of growth patterns in purebred Kambing Katjang goat and its crosses with the German Fawn

AU - Tsukahara, Y.

AU - Chomei, Yosuke

AU - Oishi, K.

AU - Kahi, A. K.

AU - Panandam, J. M.

AU - Mukherjee, T. K.

AU - Hirooka, H.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - The objective of this study was to investigate growth patterns of goats utilizing data from a crossbreeding program involving the exotic German Fawn (GF) and the indigenous Kambing Katjang (KK) goats. Growth curve models and growth curve parameters were compared and analyzed for different genotypes and litter types. A total of 20,393 weight-age data from 208 female goats belonging to various crossbreeding genotypes were individually fitted to four growth curve models (Brody, Bertalanffy, Gompertz and Logistic). The goodness of fit was highest in the Brody model in most cases. A comparison of R2 among genotypes showed that they were highest for KK. There were no significant differences of genotypes for estimated mature weight in the Brody model. The estimated mature weights for KK were significantly lower (P < 0.05) than for GF × KK (F1), backcrosses with 75% GF genes (BC) and F1 × F1 (F2) in the other models. The correlations between estimated mature weights and the maturing rates were lowest for BC. The genotype significantly (P < 0.01) affected the age at the constant degree of maturity (67% and 90% of mature weight) in all models. The BC genotype was the youngest at maturity and KK the oldest. All models well expressed the growth pattern of the target animals when they were older than 2.5 years of age. The results from the present study showed that the growth pattern may be altered by crossbreeding of KK with the GF breed.

AB - The objective of this study was to investigate growth patterns of goats utilizing data from a crossbreeding program involving the exotic German Fawn (GF) and the indigenous Kambing Katjang (KK) goats. Growth curve models and growth curve parameters were compared and analyzed for different genotypes and litter types. A total of 20,393 weight-age data from 208 female goats belonging to various crossbreeding genotypes were individually fitted to four growth curve models (Brody, Bertalanffy, Gompertz and Logistic). The goodness of fit was highest in the Brody model in most cases. A comparison of R2 among genotypes showed that they were highest for KK. There were no significant differences of genotypes for estimated mature weight in the Brody model. The estimated mature weights for KK were significantly lower (P < 0.05) than for GF × KK (F1), backcrosses with 75% GF genes (BC) and F1 × F1 (F2) in the other models. The correlations between estimated mature weights and the maturing rates were lowest for BC. The genotype significantly (P < 0.01) affected the age at the constant degree of maturity (67% and 90% of mature weight) in all models. The BC genotype was the youngest at maturity and KK the oldest. All models well expressed the growth pattern of the target animals when they were older than 2.5 years of age. The results from the present study showed that the growth pattern may be altered by crossbreeding of KK with the GF breed.

UR - http://www.scopus.com/inward/record.url?scp=56949092078&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56949092078&partnerID=8YFLogxK

U2 - 10.1016/j.smallrumres.2008.07.030

DO - 10.1016/j.smallrumres.2008.07.030

M3 - Article

AN - SCOPUS:56949092078

VL - 80

SP - 8

EP - 15

JO - Small Ruminant Research

JF - Small Ruminant Research

SN - 0921-4488

IS - 1-3

ER -