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The effects of level of nutrition before and after 8 months of age on subsequent milk and calf production of beef heifers over three lactations

Published online by Cambridge University Press:  02 September 2010

I. D. Johnsson  and
J. M. Obst
I. D. Johnsson
Affiliation:
Struan Research Centre, Box 618, Naracoorte, South Australia 5271, Australia.
J. M. Obst
Affiliation:
Pastoral Research Institute, PO Box 180, Hamilton, Victoria 3300, Australia
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Abstract

One hundred and five Hereford heifers were reared on varying amounts of the same diet of grain and hay to grow at either high (H: 0·91 kg/day), medium (M: 0·67 kg/day) or low (L: 0·55 kg/day) rates between 2 and 8 months of age. Between 8 and 14 months, intake was restricted for half of the H heifers (HL: 0·14 kg gain per day), ad libitum for half of the L heifers (LH: 0·97 kg gain per day) and moderate for all other heifers (HM: 0·57; MM: 0·58; LM: 0·55 kg gain per day). These treatments resulted in a range of live weights at 8 (weaning) and 14 (premating) months commonly seen in commercial production. Heifers were mated with Hereford bulls at 14 months of age and subsequently grazed at pasture. Milk yields (I/day) at 30 days post partum and the 240·day sex-adjusted calf weaning weights (kg) for HM, HL, MM, LH and LM heifers in the first lactation were 4·1, 218; 4·9, 236; 4·3, 221; 5·7, 241; and 6·3, 259 respectively (P < 0·01). Calves from HM and MM cows were significantly smaller and leaner than those weaned by LM cows. Milk yields 30 days post partum and 200·day sex-adjusted calf weaning weights for the second lactation averaged: HM, 5·2 and 202; HL, 6·8 and 217; MM, 7·0 and 222; LH, 6·6 and 219; and LM, 7·0 and 229, respectively; and for the third lactation: 5·1 and 211; 6·5 and 225; 7·2 and 223; 7·4 and 230; and 7·6 and 237, respectively. The continued lower milk yield of HM cows (P < 0·05) was offset by a trend (NS) to higher fertility and lower calfmortality, particularly in the 1st and 2nd years of production. Over the three lactations studied, the number of calves weaned per opportunity and the total actual weight (kg) of calves weaned per cow kept averaged: HM, 0·86 and 573; HL, 0·66 and 465; MM, 0·68 and 466; LH, 0·70 and 512; and LM, 0·67 and 507, respectively.

The high growth rates commonly achieved by autumn-born Hereford heifers under commercial grazing conditions may reduce their subsequent milk-yield potential. This potential appears to be more sensitive to level of nutrition before 8 months of age than between 8 and 14 months.

Type
Research Article
Information
Animal Production , Volume 38 , Issue 1 , February 1984 , pp. 57 - 68
Copyright
Copyright © British Society of Animal Science 1984

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References

REFERENCES

Arnett, D. W., Holland, G. L. and Totusek, R. 1971. Some effects of obesity in beef females. J. Anim. Sci. 33: 1129–1136.CrossRefGoogle ScholarPubMed
Charles, D. D. 1974. A method of estimating carcase components in cattle. Res. vet. Sci. 16: 89–94.CrossRefGoogle ScholarPubMed
Clanton, D. C., Jones, L. E. and England, M. E. 1983. Effect of rate and time of gain after weaning on the development of replacement beef heifers. J. Anim. Sci. 56: 280–285.CrossRefGoogle ScholarPubMed
Ellis, R. W. 1974. The relationship between percentage calving and weight at joining in yearling Hereford heifers. Proc. Aust. Soc. Anim. Prod. 10: 55–58.Google Scholar
Fleck, A. T., Schalles, R. R. and Kiracofe, G. H. 1980. Effect of growth rate through 30 months on reproductive performance of beef heifers. J. Anim. Sci. 51: 816–821.CrossRefGoogle ScholarPubMed
Hansson, A. 1956. Influence of rearing intensity on body development and milk production. Proc. Br. Soc. Anim. Prod., pp. 51–56.Google Scholar
Johnsson, I. D. and Obst, J. M. 1980. The effect of nutrition during early rearing on the fertility and first lactation performance of beef heifers. Proc. Aust. Soc. Anim. Prod. 13: 460 (Abstr.).Google Scholar
Kalashnikov, A., Naumova, M. and Molchanov, I. 1980. [Effect of plane of nutrition of heifer calves on their subsequent milk production.] Zhivotnovodstvo 4: 49–51 (Abstr.).Google Scholar
Koch, R. M. 1972. The role of maternal effects in animal breeding: VI. Maternal effects in beef cattle. J. Anim. Sci. 35: 1316–1323.CrossRefGoogle ScholarPubMed
Little, W. and Harrison, R. D. 1981. Effects of different rates of live-weight gain during rearing on the performance of Friesian heifers in their first lactation. Anim. Prod. 32: 362 (Abstr.).Google Scholar
Little, W. and Kay, R. M. 1979. The effects of rapid rearing and early calving on the subsequent performance of dairy heifers. Anim. Prod. 29: 131–142.Google Scholar
Lowman, B. G., Scott, N. and Somfrvili, E. S. 1973. Condition scoring of cattle. Bull. E. Scotl. Coll. Agric, No. 6.Google Scholar
Ludwig, C., Ewing, S. A., Pope, L. S. and Stkphens, D. F. 1967. The cumulative influence of level of wintering on the lifetime performance of beef females through seven calf crops. Misc. Publs, Okla. agric. Exp. Stn, No. 79, pp. 58–66.Google Scholar
Mangus, W. L. and Brinks, J. S. 1971. Relationship between direct and maternal effects on growth in Herefords: I. Environmental factors during pre-weaning growth. J. Anim. Sci. 32: 17–25.CrossRefGoogle Scholar
Plum, M. and Harris, L. 1968. Rearing intensity and milk production of Holstein heifers. J. Anim. Sci. 27: 1128 (Abstr.).Google Scholar
Schultz, L. H. 1969. Relationship of rearing rate of dairy heifers to mature performance. J. Dairy Sci. 52: 1321–1329.CrossRefGoogle Scholar
Sejksen, K. 1978. Mammary development and milk yield in relation to growth rate in dairy and dual-purpose heifers. Ada Agric. scand. 28: 41–46.CrossRefGoogle Scholar
Sejrsen, K., Huber, J. T., Tucker, H. A. and Akers, R. M. 1982. Influence of nutrition on mammary development in pre and post-pubertal heifers. J. Dairy Sci. 65: 793–800.CrossRefGoogle Scholar
Short, R. E. and Bellows, R. A. 1971. Relationships among weight gains, age at puberty and reproductive performance in heifers. J. Anim. Sci. 32: 127–131.CrossRefGoogle Scholar
Sinha, Y. N. and Tucker, H. A. 1969. Mammary development and pituitary prolactin level of heifers from birth through puberty and during the oestrus cycle. J. Dairy Sci. 52: 507–512.CrossRefGoogle Scholar
Swanson, E. W. 1967. Optimum growth patterns for dairy cattle. J. Dairy Sci. 50: 244–252.CrossRefGoogle Scholar
Swanson, E. W. and Spann, T. R. 1954. The effect of rapid growth with fattening upon lactation in cattle and rats. J. Anim. Sci. 13: 1032 (Abstr.).Google Scholar
Wiltbank, J. N., Kasson, C. W. and Ingalls, J. E. 1969. Puberty in crossbred and straightbred beef heifers on two levels of feed. J. Anim. Sci. 29: 602–605.CrossRefGoogle Scholar