Insulin-like growth factor-I measured in juvenile pigs is genetically correlated with economically important performance traits
K. L. Bunter A C , S. Hermesch A , B. G. Luxford B , H-U. Graser A and R. E. Crump AA Animal Genetics and Breeding Unit, University of New England, Armidale, NSW 2351, Australia.
B QAF Meat Industries, PO Box 78, Redlands Road, Corowa, NSW 2646, Australia.
C Corresponding author. Email: kbunter2@une.edu.au
Australian Journal of Experimental Agriculture 45(8) 783-792 https://doi.org/10.1071/EA05048
Submitted: 14 February 2005 Accepted: 29 April 2005 Published: 26 August 2005
Abstract
Insulin-like growth factor-I (IGF-I) is a naturally occurring polypeptide produced in the liver, muscle and fat tissues. It is known to be associated with growth and development during the postnatal growth period. Evidence for strong genetic correlations between juvenile IGF-I and performance traits would suggest this physiological measure would be useful as an early selection criterion. This paper reports estimates of genetic parameters from 9 trials where IGF-I was measured in juvenile pigs. All trials involved populations undergoing active selection for improved performance (e.g. efficient lean meat growth). Juvenile IGF-I was moderately heritable (average h2: 0.31) and influenced by common litter effects (average c2: 0.15). Genetic correlations (rg) between juvenile IGF-I and backfat (BF), feed intake (FI) or feed conversion ratio (FCR) traits were generally large and positive: rg averaged 0.57, 0.41 and 0.65, respectively. Phenotypic correlations (rp) between juvenile IGF-I and BF, FI or FCR were much lower (rp averaged 0.21, 0.09, and 0.15, respectively) as residual correlations between IGF-I and these performance traits were low, consistent with being measured at very different times. Correlations (genetic or phenotypic) between juvenile IGF-I and growth traits (e.g. lifetime daily gain or test daily gain) were relatively low, with average values within ± 0.09 of zero. Results from the trials reported here, and several physiological studies, indicate that information on juvenile IGF-I concentration can be used as an early physiological indicator of performance traits traditionally measured later in life. There is a clear role for juvenile IGF-I to facilitate pre-selection and more accurate selection of livestock for hard to measure traits, such as FCR, in pig breeding programs.
Acknowledgments
The authors gratefully acknowledge the contributions of QAF Meat Industries (formerly Bunge Meat Industries, Australia), Bell Farming Group (USA), Rattlerow Farms (UK), contributing participants in the Australian National Pig Improvement Program (NPIP), and Mitteldeutscher Schweinezuchtverband e. V (Germany) for enabling publication of trial results. Special thanks to the staff involved in arranging trials (Jon Mercer, Ed Sutcliffe, Kitti Lahti, Uwe Wünsch) and also to staff that collected the blood samples and performance data. Thanks also go to Primegro Limited for providing the IGF-I testing. The measurement of IGF-I for selection purposes, known as PrimeGRO IGF-I, has international patents granted and pending.
Blair HT,
McCutcheon SN,
Mackenzie DDS,
Ormsby JE,
Siddiqui RA,
Breier BH, Gluckman PD
(1988) Genetic selection for insulin-like growth factor-I in growing mice is associated with altered growth. Endocrinology 123, 1690–1692.
| PubMed |
Boone C,
Gregoire F, Remacle C
(2000) Culture of porcine stromal-vascular cells in serum-free medium: differential action of various hormonal agents on adipose conversion. Journal of Animal Science 78, 885–895.
| PubMed |
Cameron ND,
McCullough E,
Troup K, Penman JC
(2003) Serum insulin-like growth factor-1 concentration in pigs divergently selected for daily food intake or lean growth rate. Journal of Animal Breeding and Genetics 120, 228–236.
| Crossref | GoogleScholarGoogle Scholar |
Chen NX,
Hausman GJ, Wright JT
(1995) Influence of age and fetal hypophysectomy on porcine preadipocytes: insulin-like growth factor-I (IGF-I) response, receptor binding and IGF binding proteins secretion. Growth, Development, and Aging 59, 193–206.
Cottam YH,
Blair HT,
Gallaher BW,
Purchas RW,
Breier BH,
McCutcheon SN, Gluckman PD
(1992) Body growth, carcass composition, and endocrine changes in lambs chronically treated with recombinantly derived insulin-like growth factor-I. Endocrinology 130, 2924–2930.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Davis ME, Bishop MD
(1991) Preliminary results on between and within twin set variation in insulin-like growth factor I (IGF-1) and some relationships with performance traits in identical twin heifers. Livestock Production Science 27, 255–262.
| Crossref | GoogleScholarGoogle Scholar |
Davis ME,
Boyles SL,
Moeller SJ, Simmen RCM
(2003) Genetic parameter estimates for serum insulin-like growth factor-I concentration and ultrasound measurements of backfat thickness and longissimus muscle area in Angus beef cattle. Journal of Animal Science 81, 2164–2170.
| PubMed |
Davis ME, Simmen RCM
(1997) Genetic parameter estimates for serum insulin-like growth factor-I concentration and performance traits in Angus beef cattle. Journal of Animal Science 75, 317–324.
| PubMed |
Davis ME, Simmen RCM
(2000) Genetic parameter estimates for serum insulin-like growth factor-I concentration and carcass traits in Angus beef cattle. Journal of Animal Science 78, 2305–2313.
| PubMed |
Dunaiski V,
Dunshea FR,
Walton PE, Goddard C
(1997) Long [R3] insulin-like growth factor-I reduces growth, plasma growth hormone, IGF binding protein-3 and endogenous IGF-I concentrations in pigs. The Journal of Endocrinology 155, 559–565.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Dunshea FR,
King RH,
Owens PC, Walton PE
(1999) Moderate doses of porcine somatotropin do not increase plasma insulin-like growth factor (IGF-I) or IGF binding protein-3. Domestic Animal Endocrinology 16, 149–157.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Gilmour AR,
Thompson R, Cullis BR
(1995) Average information REML, an efficient algorithm for variance parameter estimation in linear mixed models. Biometrics 51, 1440–1450.
Govoni KE,
Hoagland TA, Zinn SA
(2003) The ontogeny of the somatotropic axis in male and female Hereford calves from birth to one year of age. Journal of Animal Science 81, 2811–2817.
| PubMed |
Harrell RJ,
Thomas MJ,
Boyd RD,
Czerwinski SM,
Steele NC, Bauman DE
(1999) Ontogenic maturation of the somatotropin/insulin-like growth factor axis. Journal of Animal Science 77, 2934–2941.
| PubMed |
Hermesch S,
Luxford BG, Graser H-U
(2000) Genetic parameters for lean meat yield, meat quality, reproduction and feed efficiency traits for Australian pigs. 1. Description of traits and heritability estimates. Livestock Production Science 65, 239–248.
| Crossref | GoogleScholarGoogle Scholar |
Herpin P,
le Dividich J, Amaral N
(1993) Effect of selection for lean tissue growth on body composition and physiological state of the pig at birth. Journal of Animal Science 71, 2645–2653.
| PubMed |
Holly JMP, Cwyfan Hughes SC
(1994) Measuring insulin-like growth factors: why, where and how? The Journal of Endocrinology 140, 165–169.
| PubMed |
Honegger A, Humbel RE
(1986) Insulin-like growth factors I and II in fetal and adult bovine serum. The Journal of Biological Chemistry 261, 569–575.
| PubMed |
Hossner KL,
McCusker RH, Dodson MV
(1997) Insulin-like growth factors and their binding proteins in domestic animals. Animal Science (Penicuik, Scotland) 64, 1–15.
Klindt J,
Yen JT,
Buonomo FC,
Roberts AJ, Wise T
(1998) Growth, body composition, and endocrine responses to chronic administration of insulin-like growth factor I and(or) porcine growth hormone in pigs. Journal of Animal Science 76, 2368–2381.
| PubMed |
Lahti K,
Bunter K,
Mercer J, Clearkin S
(2001) Genetic relationships between insulin-like growth factor-I and performance traits in two lines of purebred swine. Journal of Animal Science 79(Suppl. 1), 192.
Lamberson WR,
Safranski TJ,
Bates RO,
Keisler DH, Matteri RL
(1995) Relationships of serum insulin-like growth factor I concentrations to growth, composition and reproductive traits of swine. Journal of Animal Science 73, 3241–3245.
| PubMed |
Lonergan SM,
Huff-Lonergan E,
Rowe LJ,
Kuhlers DL, Jungst SB
(2001) Selection for lean growth efficiency in Duroc pigs influences pork quality. Journal of Animal Science 79, 2075–2085.
| PubMed |
Luxford BG,
Bunter KL,
Owens PC, Campbell RG
(1998a) Genetic relationships between insulin-like growth factor-1 and pig performance. Journal of Animal Science 76(Suppl. 1), 53.
Matteri RL,
Dyer CJ,
Touchette KJ,
Carroll JA, Allee GL
(2000) Effects of weaning on somatotophic gene expression and circulating levels of insulin-like growth factor-I (IGF-I) and IGF-2 in pigs. Domestic Animal Endocrinology 19, 247–259.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Miner JL
(2004) The adipocyte as an endocrine cell. Journal of Animal Science 82, 935–941.
| PubMed |
Owens PC,
Gatford KL,
Walton PE,
Morley W, Campbell RG
(1999) The relationship between endogenous insulin-like growth factors and growth in pigs. Journal of Animal Science 77, 2098–2103.
| PubMed |
Roberts CA,
McCutcheon SN,
Blair HT,
Gluckman PD, Breier BH
(1990) Developmental patterns of plasma insulin-like growth factor-1 concentrations in sheep. Domestic Animal Endocrinology 7, 457–464.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Smith JM,
van Amburgh ME,
Diaz MC,
Lucy MC, Bauman DE
(2002) Effect of nutrient intake on the development of the somatotropic axis and its responsiveness to GH in Holstein bull calves. Journal of Animal Science 80, 1528–1537.
| PubMed |
Suzuki K,
Nakagawa M,
Katoh K,
Kadowaki H,
Shibata T,
Uchida H,
Obara Y, Nishida A
(2004) Genetic correlation between serum insulin-like growth factor-1 concentration and performance and meat quality traits in Duroc pigs. Journal of Animal Science 82, 994–999.
| PubMed |
te Pas MFW,
Visscher AH, de Greef KH
(2004) Molecular genetic and physiologic background of the growth hormone-IGF-I axis in relation to breeding for growth rate and leanness in pigs. Domestic Animal Endocrinology 27, 287–301.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Walton PE,
Dunshea FR, Ballard FJ
(1995) In vivo actions of IGF analogues with poor affinities for IGFBPs: metabolic and growth effects in pigs of different ages and GH responsiveness. Progress in Growth Factor Research 6, 385–395.
| Crossref | GoogleScholarGoogle Scholar | PubMed |