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The effect of different concentrations of protein and fat in milk replacers on protein utilization in kid goats

Published online by Cambridge University Press:  02 September 2010

M. R. Sanz Sampelayo ,
I. Ruiz Mariscal ,
F. Gil Extremera  and
J. Boza
M. R. Sanz Sampelayo
Affiliation:
Estación Experimental del Zaidín, Consejo Superior de Investigaciones Cieníficas, Departamento de Nutrición Animal, Profesor Albareda, 1, 18008 Granada, Spain
I. Ruiz Mariscal
Affiliation:
Estación Experimental del Zaidín, Consejo Superior de Investigaciones Cieníficas, Departamento de Nutrición Animal, Profesor Albareda, 1, 18008 Granada, Spain
F. Gil Extremera
Affiliation:
Estación Experimental del Zaidín, Consejo Superior de Investigaciones Cieníficas, Departamento de Nutrición Animal, Profesor Albareda, 1, 18008 Granada, Spain
J. Boza
Affiliation:
Estación Experimental del Zaidín, Consejo Superior de Investigaciones Cieníficas, Departamento de Nutrición Animal, Profesor Albareda, 1, 18008 Granada, Spain
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Abstract

The efficiency of utilization of protein for retention was analysed in pre-ruminant kid goats of the Granadina breed. Sixty male kids were used. Six were slaughtered at birth and the remaining 54 were offered different protein and fat intakes using nine different milk replacers. The protein concentrations were 200, 240 and 280g/kg dry matter (DM) and those of fat were 200, 240 and 280 g/kg DM. Animals were maintained on experiment until they were 60 days old. All were slaughtered on day 61. Nitrogen (N) balance trials were performed during the last 8 days of the 1st and 2nd months. Body composition of the animals slaughtered at birth and at 61 days were determined. Rates of energy retained as protein and as fat were determined (kJ/kg M0·75 per day) and the corresponding rates of metabolizable energy intake as protein and as fat (kJ/kg M0·75 per day) estimated.

Once the relationships between the rates ofN retained and those of digestible N ingested had been established, it was evident that by increasing the protein content of the diet the efficiency of protein retention was decreased. In contrast, increasing the fat content of the milk replacer increased the efficiency of protein retention. The latter effect was noted for the milk replacers containing the high and medium levels of protein but not for those that contained the lowest level of protein, indicating that the level of protein was then the limiting factor. Having recorded this protein-sparing effect of the fat, the results obtained from the slaughter trials were used to develop generalized equations expressing the rates of energy retention in the form of protein or fat as a function of the rates of metabolizable energy intake achieved as both protein and fat. From the analysis of these equations conclusions are drawn about the variable contribution to protein retention in these animals of energy ingested as fat. This contribution depended on the energy intake achieved both in the form of protein and in the form of fat.

Keywords

fat contentkidsmilk replacersprotein contentprotein utilization
Type
Research Article
Information
Animal Science , Volume 64 , Issue 3 , June 1997 , pp. 485 - 492
Copyright
Copyright © British Society of Animal Science 1997

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References

Assendelf, O. W., Hook, G. A. van and Zijlstra, G. M. 1973. International systems of units in physiology. Pfluegers Archv-European Journal of Physiology 339: 265–272.CrossRefGoogle Scholar
Berschauer, F., Close, W. H. and Stephens, D. B. 1983. The influence of protein: energy value of the rations and level of feed intake on the energy and nitrogen metabolism of the growing pig. 2. N metabolism at two environmental temperatures. British Journal of Nutrition 49: 271–283.Google Scholar
Black, J. L. and Griffiths, D. A. 1975. Effects of live weight and energy intake on nitrogen balance and total N requirements of lambs. British Journal of Nutrition 33: 399–413.CrossRefGoogle ScholarPubMed
Blaxter, K. L. 1950. The protein and energy nutrition of the young calf. Agricultural Progress 25: 85–89.Google Scholar
Bouchard, R. 1977. Coconut oil and levels of fat in milk substitute for veal calves. Canadian Journal of Animal Science 57: 379–381.CrossRefGoogle Scholar
Brouwer, R. 1965. Report of sub-committee on constants and factors. In Energy metabolism offarm animals (ed. Blaxter, K. L.), pp. 441–443. Academic Press, London.Google Scholar
Fuller, M. F. and Crofts, R. M. J. 1977. The protein-sparing effect of carbohydrate. 1. Nitrogen retention of growing pigs in relation to diet. British Journal of Nutrition 38: 479–488.Google Scholar
Fuller, M. F., Weekes, T. E. C., Cadenhead, A. and Bruce, J. B. 1977. The protein-sparing effect of carbohydrate. 2. The role of insulin. British Journal of Nutrition 38: 489–496.Google Scholar
Havrevoll, O., Hadjipanayiotou, M., Sanz Sampelayo, M. R., Nitzan, Z. and Schmidely, P. 1991. Milk feeding systems of young goats. In Goat nutrition (ed. Morand-Fehr, P.), pp. 259–270. Pudoc, Wageningen.Google Scholar
Henning, W. P. 1982. High fat whey powder in calf milk replacer. The role of protein/energy ratios. South African Journal of Animal Science 12: 15–20.Google Scholar
Jenkins, K. J. and Emmons, D. B. 1979. Effect of fat dispersion method on performance of calves fed high-fat milk replacers. Canadian Journal of Animal Science 59: 713–720.Google Scholar
Lodge, G. A. and Lister, E. E. 1973. Effects of increasing the energy value of a whole milk diet for calves. I. Nutrient digestibility and nitrogen retention. Canadian Journal of Animal Science 53: 307–316.CrossRefGoogle Scholar
Moulin, P. 1983. Les corps gras animaux dans les aliments d'allaitement. [Animal fats in milk replacers.] Reveu Francaise des Corps Gras 30: 287–290.Google Scholar
Ørskov, E. R. 1982. Physiology of the ruminant stomach. Pre-ruminant nutrition. In Protein nutrition in ruminants (ed. Ørskov, E. R.), pp. 1–8. Academic Press, London.Google Scholar
Patureau-Mirand, P. 1975. Quelques aspects de la nutrition azotee du veau et de l'agneau preruminants. [Different aspects of nitrogen nutrition in the pre-ruminant calf and lamb.] Les Industries de 1'Alimentation Animale 1: 27–41.Google Scholar
Pearson, D. 1976. Milk products. In Laboratory techniques food analysis (ed. Pearson, D.), pp. 145–147. Butterworths, London.Google Scholar
Raven, A. M. 1970. Fat in milk replacers for calves. Journal of the Science of Food and Agriculture 21: 352–359.Google Scholar
Roy, J. H. B., Stobo, I. J. F. and Gaston, H. J. 1970. The nutrition of the veal calf. 2. The effect of different levels of protein and fat in milk substitute diets. British Journal of Nutrition 24: 441–457.Google Scholar
Ruiz Mariscal, I., Gómez, A., Prieto, I., Sanz Sampelayo, M. R., Gil, F. and Boza, J. 1990. Nota sobre el diseño y analisis de un sistema de alimentacion continuada para el cabritro lactante. [Note on the design and evaluation of a system for ad libitum feeding of the milk-fed goat kid.] Investigatión Agraria. Productión y Sanidad Animales 5: 43–50.Google Scholar
Sanz Sampelayo, M. R., Allegretti, L., Ruiz Mariscal, I., Gil Extremera, F. and Boza, J. 1995a. Dietary factors affecting the maximum feed intake and the body composition of pre-ruminant kid goats of the Granadina breed. British Journal of Nutrition 74: 335–345.CrossRefGoogle ScholarPubMed
Sanz Sampelayo, M. R., Lara, L., Gil Extremera, F. and Boza, J. 1995b. Energy utilization for maintenance and growth in preruminant kid goats and lambs. Small Ruminant Research 17: 25–30.CrossRefGoogle Scholar
Sanz Sampelayo, M. R., Muñoz, F. J., Anguita, T., Lara, L., Gil, F. and Boza, J. 1987. Utilización de calcio y fósforo por el cabrito de raza Granadina. Alimentación exclusivamente láctea. [Calcium and phosphorus utilization by the milk-fed kid goat of the Granadina breed.] Investigatión Agraria. Productión y Sanidad Animales 2: 163–172.Google Scholar
Sanz Sampelayo, M. R., Muñoz, F. J., Guerrero, J. E., Gil Extremera, F. and Boza, J. 1988. Energy metabolism of the Granadina breed goat kid. Use of goat milk and a milk replacer. Journal of Animal Physiology and Animal Nutrition 59: 1–9.Google Scholar
Soliman, H. S., Ørskov, E. R., Atkinson, T. and Smart, R. I. 1979. Utilization of partially hydrolysed starch in milk replacers by newborn lambs. Journal of Agricultural Science, Cambridge 92: 343–349.Google Scholar
Statgraphics. 1991. User manual: Statistical Graphics System by Statistical Graphics Corporation. Rock-Ville, Maryland, USA.Google Scholar
Steel, R. G. D. and Torrie, J. H. 1984. Principles and procedures of statistics. A biometrical approach, second edition. McGraw-Hill Inc., Singapore.Google Scholar
Stobo, I. J. F., Roy, J. H. B. and Ganderton, P. 1979. The effect of changes in concentrations of dry matter and of fat and protein in milk substitute diets for veal calves. Journal of Agricultural Science, Cambridge 93: 95–110.Google Scholar
Walker, D. M. 1973. Amino-acid imbalance and its effect on energy utilization in the milk-fed lamb. In Energy metabolism offarm animals (ed. Menke, H. H., Lanztsch, H. J. and Reichl, J. R.), pp. 75–78. Universitat Hohenheim, Stuttgart.Google Scholar
Williams, A. P. and Hewitt, D. 1979. The amino acid requirements of the preruminant calf. British Journal of Nutrition 41: 311–319.CrossRefGoogle ScholarPubMed