The effect of feed supplementation on the onset of puberty in Brazilian dairy heifers Efeito da suplementação alimentar no início da puberdade em novilhas brasileiras

The effect of feed supplementation on the onset of puberty in Brazilian dairy heifers Efeito da suplementação alimentar no início da puberdade em novilhas brasileiras

Most Brazilian dairy production is conducted by small holders whose general management skills and feeding programs are often deficient. One common problem directly attributed to underfeeding is that heifers rarely reach sexual maturity before 15 months of age. Groups of growing heifers were treated...

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Veröffentlicht in:Scientia agricola 1994-08, Vol.51 (2), p.374-380
Hauptverfasser: C.F. Meirelles, A.L. Abdalla, D.M.S.S. Vitti
Format: Artikel
Sprache:eng
Schlagworte:
antihelmintic
antihelmíntico
heifers
novilhas holandesas
protein supplementation
puberdade
puberty
suplementação proteica
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Zusammenfassung:Most Brazilian dairy production is conducted by small holders whose general management skills and feeding programs are often deficient. One common problem directly attributed to underfeeding is that heifers rarely reach sexual maturity before 15 months of age. Groups of growing heifers were treated to detect the effects of protein supplementation and antihelmintic treatment on sexual maturity. The first ovulation occurred at 513 ± 44 and 573 ± 36 days (P
ISSN:0103-9016
1678-992X
DOI:10.1590/S0103-90161994000200026