
Abstract Providing calves with access to high-quality forage through creep grazing prior to weaning may help improve calf productivity. In this study of fall-calving herds, the productivity of a rotationally stocked forage system with 10% of the pasture area rotated between winter forages for creep grazing and summer forages (CRP) was compared to the productivity of rotationally (ROT) and continuously (CON) stocked, perennial forage systems. Calves in CRP were provided access to the creep forage 6 to 26 d before weaning and through a 2-wk weaning process. Creep forage nutritive value declined over sampling period. Cows in CON had lower (P = 0.02) hay requirements than cows in CRP. Cow body condition score (BCS) prior to the creep grazing period was greater for CON cows than cows in other systems (P ≤ 0.001). Spring calf body weight (BW) was lowest in ROT compared to calf BW in the other systems (P ≤ 0.008). Calf BW following a 2-wk weaning process was greater (P ≤ 0.002) for CON and CRP calves (246 ± 4 kg) than for ROT calves (226 ± 5 kg), with no difference in calf BW at weaning (P = 1.0) between CON and CRP. Calf average daily gain (ADG; 0.92 ± 0.04 kg day−1) from spring pregnancy checks through weaning did not differ between treatments (P ≥ 0.41). While creep grazing systems with cool-season annual forages increased fall-born calf weaning weights compared to rotationally stocked, perennial forage systems, the creep grazing systems required greater hay inputs without weaning weight improvements compared to continuously stocked, perennial forage systems.
Forage Based Livestock Systems
Forage Based Livestock Systems
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