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2006 | 15 | 1 |
Tytuł artykułu

Effect of rumen-protected protein supplemented with three amino acids on milk yield, composition and fatty acid profile in dairy cows

Treść / Zawartość
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Języki publikacji
EN
Abstrakty
EN
The objective of this study was to determine the influence of rumen-protected protein supplemented with the amino acids lysine (Lys), methionine (Met) and histidine (His) added either as a powder or in the form of rumen-protected tablets to the rumen of dairy cows on the yield, composition and technological suitability of milk. The experiment was carried out on three lactating Holstein cows with an average weight of 523 kg fitted with ruminal and duodenal cannulas. The experiment was divided into 4 periods of 14 d (10 d preliminary period and 4 d experimental period). In the first period one cow received the tablets (T) and the other two received the non-tableted mixture (C) with the same composition. In the subsequent period the design was opposite. Cows were fed a diet based on maize silage, lucerne hay and a supplemental mixture. Powder or tablets consisted of purified soya-protein HP 300, Lys, Met and His. Average milk yield in C cows was 16.73 kg and was significantly lower than in T cows (17.8 kg; P<0.05). Protein, fat and lactose contents were unaffected by the treatment. Protein yield was lower (529.5 g/d) in the C than in the T (569.3 g/d; P<0.05) cows. The increase in milk protein yield in T cows was followed closely by progressive increases in casein content (2.46 vs 2.68%). The content of short- and medium-chain fatty acids was higher and the proportion of C18:1, C18:2, C18:3n3 and C20:1 was lower in the C than in the T (P<0.05) animals. The proportion of UFA (both MUFA and PUFA) was increased and that of SFA in milk (P<0.05) was decreased in the T animals. The total SFA:UFA ratio was higher in C compared with T cows (1.89 vs 1.52; P<0.05).
Słowa kluczowe
Wydawca
-
Rocznik
Tom
15
Numer
1
Opis fizyczny
p.3-15,ref.
Twórcy
autor
  • Research Institute for Cattle Breeding, Ltd., Videnska 699, Pohorelice 691 23, Czech Republic
autor
autor
autor
autor
autor
autor
Bibliografia
  • AOAC, 1984. Official Methods of Analysis, Association of Official Analytical Chemists. 14th Edition. Washington, DC
  • Ardaillon P., Antant P., Bourrain P., Cartillier A., 1989. Compositions for coating feedstuff additives thus coated. United States Patent, US 4, 877,621
  • Cant J. P., Trout D. R., Qiao F., McBride B. W., 1997. Milk composition responses to unilateral infusion of amino acid mixtures. J. Dairy Sci. 80, Suppl. 1, 53 (Abstr.)
  • Choung J.J., Chamberlain D.G., 1995. The effects of intravenous supplements of amino acids on milk production of dairy cows consuming grass silage and supplement containing feather meal. J. Sci. Food Agr. 68, 265-270
  • Christensen R.A., Cameron M.R., Clark J.H., Drackley J.K., Lynch J.M., Barbano D.M., 1994.
  • Effects of amount of protein and ruminally protected amino acids in the diet of dairy cows fed supplemental fat. J. Dairy Sci. 77, 1618-1629
  • Fraser D.L., Ørskov E.R., Withelaw F.G., Franklin M.F., 1991. Limiting amino acids in dairy cows given casein as the sole source of protein. Livest. Prod. Sci. 28, 235-252
  • Grega T., Pisulewski P., Kowalski Z. M., Sady M., 1999. Effect of rumen-protected amino acids (Llysine and DL-methionine) on processing quality of milk. Pol. J. Food Nutr. Sci. 8/49, 91-100
  • Huhtanen P., Vanhatalo A., Varvikko T., 2002. Effects of abomasal infusions of histidine, glucose, and leucine on milk production and plasma metabolites of dairy cows fed grass silage diets. J. Dairy Sci. 85, 204-216
  • Kennely J.J., Glimm D.R., 1998. The biological potential to alter the composition of milk. Can. J. Anim. Sci. 78, Suppl., 23-56
  • Korhonen M., Vanhatalo A., Varvikko T., Huhtanen P., 2000. Responses to graded postruminal doses of histidine in dairy cows fed grass silage diets. J. Dairy Sci. 83, 2596-2608
  • Krober T.F., Sutter F., Senn M., Langhans W., Kreuzer M., 2001. Effects of supplying leucine and methionine to early-lactating cows fed silage-concentrate based diets with a calculated deficiency in leucine and methionine. Anim. Res. 50, 5-20
  • Oldham J.D., 1987. Efficiencies of amino acid utilization. In: R. Jarrige, G. Alderman (Editors). Feed Evaluation and Protein Requirement Systems for Ruminants. European Economic Union, Brussels, pp. 171-186
  • Papas A.M., Vicini J.L., Clark J.H., Pierce-Sandner S., 1984. Effect of rumen-protected methionine on plasma free amino acids and production by dairy cows. J. Nutr. 114, 2221-2238
  • Pisulewski P.M., Rulquin H., Peyraud J.L., Verite R., 1996. Lactational and systemic responses of dairy cows to postruminal infusions of increasing amounts of methionine. J. Dairy Sci. 79, 1781-1791
  • Rulquin H., 2001. Acides aminés digestibles dans l´intestin. INRA Prod. Anim. 14, 275-278
  • Rulquin H., Delaby L., 1997. Effects of the energy balance of dairy cows on lactational responses to rumen-protected methionine. J. Dairy Sci. 80, 2513-2522
  • Schwab C.G., Bozak C.K., Whitehouse N.L., Olson V.M., 1992. Amino acid limitation and flow to the duodenum at four stages of lactation. 2. Extent of lysine limitation. J. Dairy Sci. 75, 3503-3518
  • Sommer A., Frydrych Z., Vencl B., 1994. Nutrient Requirement and Tables of Nutritional Values of Feedstuffs for Ruminants. Editor: Research Institute of Animal Nutrition, Pohořelice, pp. 198
  • Vanhatalo A, Huhtanen P., Toivonen V., Varvikko T., 1999. Response of dairy cows fed grass silage diets to abomasal infusions of histidine alone or in combinations with methionine and lysine. J. Dairy Sci. 82, 2674-2685
  • Volden H., Velle W., Harstad O.M., Aulie A., Sjaastad O.V., 1998. Ruminal degradation and rumen escape of lysine methionine and threonine administered intraruminally in mixtures to highyielding cows. J. Anim. Sci. 76, 1232-1240
  • Xu S., Harrison J.H., Chalupa W., Sniffen C., Julien W., Sato H., Fujieda T., Watanabe K., Ueda T., Suzuki H., 1998. The effect of ruminal bypass lysine and methionine on milk yield and composition of lactating cows. J. Dairy Sci. 81, 1062-1077
Typ dokumentu
Bibliografia
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bwmeta1.element.agro-article-73aaf599-3f24-42c6-a740-3ac16aab871b
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