100 Italian Friesian cows were fed on diets containing soyabean meal and sunflower meal (control) or soyabean meal and herring meal without or with injection of somatotropin 640 mg/cow every 28 days for 2 cycles. Somatotropin treatment plus herring meal increased milk yield. Substitution of sunflower meal and soyabean meal with herring meal reduced milk fat content and increased milk protein and somatic cell count. Somatotropin did not affect the reproductive variables.
Effect of the use of protein sources with different rumen degradability on the milk production of cows treated with slow releasing rbST / G. Savoini, D. Cattaneo, C.S. Rossi, E. Salimei, F. Cheli, F. Rosi, F. Vezzoli, V. Dell'Orto, C.A. Sgoifo Rossi - In: Proceedings of the 10th national congress, Scientific Association of Animal Production, Bologna, Italy, 31 May-3 June 1993[s.l] : Associazione Scientifica di Produzione Animale, Bologna, Italy, 1993. - pp. 197-202 (( Intervento presentato al 10. convegno Proceedings of the 10th national congress, Scientific Association of Animal Production tenutosi a Bologna, Italy nel 1993.
Effect of the use of protein sources with different rumen degradability on the milk production of cows treated with slow releasing rbST.
G. SavoiniPrimo
;D. CattaneoSecondo
;F. Cheli;F. Rosi;C.A. Sgoifo Rossi
1993
Abstract
100 Italian Friesian cows were fed on diets containing soyabean meal and sunflower meal (control) or soyabean meal and herring meal without or with injection of somatotropin 640 mg/cow every 28 days for 2 cycles. Somatotropin treatment plus herring meal increased milk yield. Substitution of sunflower meal and soyabean meal with herring meal reduced milk fat content and increased milk protein and somatic cell count. Somatotropin did not affect the reproductive variables.
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