The pasture-based replacement dairy heifer is typically housed and managed intensively from birth until weaning, but post-weaning outdoors in paddocks under less intensive management. Little published about the welfare of weaned systems. aim this review to consolidate scientific literature provide an overview factors affecting heifers on pastoral dairies. Heifer during transition milking herd c...

Abstract This experiment evaluated the impacts of administering a bovine appeasing substance (BAS) to Bos taurus (angus crossed) beef replacement heifers at initiation an estrous synchronization (TAI) protocol on their temperament and pregnancy rates. A total 348 four locations were stratified by body weight (BW); reproductive tract score (RTS), [TS; average exit velocity (EV) chute (CS), deter...

Management of the beef female for reproductive success, both before and after puberty, plays a major role in determining the efficiency of any beef production system. Two of the most critical physiological periods associated with female reproduction are the prepubertal and postpartum periods. Therefore, a general understanding of the processes that underlie developmental changes in the heifer d...

Thirty-three Hereford x Angus first-calf heifers were used to determine the relationship between production efficiency (PE = calf weaning weight/[12-mo dam+calf ME intake]) and nonlactating dam maintenance ME requirement/BW.75 (MEm) and its components, the efficiency of ME use for maintenance (km), and fasting heat production/BW.75 (FHP). Each heifer was kept in drylot from 19 mo of age until w...

BACKGROUND Tumours of the upper respiratory tract are relatively common in cattle, but to our knowledge, there have been no reports of lymphoma of the nasal cavity. This case report describes the findings in a 22-month-old Brown Swiss heifer with T-cell lymphoma of the nasal cavity. CASE PRESENTATION The main clinical findings were lacrimation and swelling of the head above and below the righ...

Reports are reviewed in which genetic differences for sex ratio of offspring were found among breeds, breed crosses, strains, lines, line crosses, families or individuals. Although reports in which genetic variation could not be identified outnumber those in which it could, important genetic variation does exist in at least some populations. The direct or correlated response of sex ratio to sel...

Data were tenderness measures on steaks from 237 bulls (Group II) slaughtered after producing freezable semen and on 1,431 related steers and heifers (market animals, Group I) from Angus, Hereford, Pinzgauer, Brahman, and Sahiwal crosses from the Germ Plasm Evaluation project at the U.S. Meat Animal Research Center. Tenderness was assessed through Warner-Bratzler Shear Force (SF), taste panel t...