The effects of ruminally undegradable protein, propionic acid, and monensin on puberty and pregnancy in beef heifers

Two hundred ten spring-born English crossbred beef heifers were used in two experiments in consecutive years using a randomized complete block design. The objectives were to determine the effects of increasing dietary intake of ruminally undegradable protein or propionic acid on the occurrence of pu...

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Veröffentlicht in:	Journal of animal science 1993-11, Vol.71 (11), p.2843-2852
Hauptverfasser:	Lalman, D.L, Petersen, M.K, Ansotegui, R.P, Tess, M.W, Clark, C.K, Wiley, J.S
Format:	Artikel
Sprache:	eng
Schlagworte:	ACIDE PROPIONIQUE ACIDO PROPIONICO Animal Feed Animal reproduction Animals AZUCAR EN SANGRE Blood Glucose - analysis Blood Urea Nitrogen BOVIN DE BOUCHERIE Cattle Cattle - growth & development Cattle - physiology CHOLESTEROL Cholesterol - blood COLESTEROL Diet Dietary Proteins - administration & dosage Dietary Proteins - metabolism Eating - drug effects Female Fertility - drug effects GAIN DE POIDS GANADO DE CARNE GANANCIA DE PESO GENISSE Growth Hormone - blood INGESTION DE PIENSOS Insulin - blood MADUREZ SEXUAL MATURITE SEXUELLE METABOLITE METABOLITOS MONENSIN Monensin - pharmacology MONENSINA NOVILLA Pregnancy PRISE ALIMENTAIRE (ANIMAUX) Propionates - administration & dosage Propionates - pharmacology PROTEINAS PROTEINE Random Allocation SERUM SANGUIN Sexual Maturation - drug effects SOMATOTROPINA SOMATOTROPINE SUCRE DU SANG SUERO SANGUINEO UREA UREE VACA VACHE Weight Gain - drug effects
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