A 2-yr study was conducted to determine the first limiting nutrient for gain in nursing calves grazing native range in southeastern North Dakota. Thirty-two calves (20 steers, 12 heifers) in Trial 1 (169 +/- 5 kg initial BW) and 31 (16 steers, 15 heifers) in Trial 2 (214 +/- 5 kg initial BW) grazed common pastures. Calves were blocked by sex and stratified by weight. Calves were stratified by a...

ABSTRACT The objective of this study was to evaluate the effects oral administration fiber from first week life on growth and hindgut environment preweaning calves. Twenty newborn female Holstein calves were divided into 2 groups as control treatment. Calves in both reared under same feeding program except for administration. Timothy hay psyllium mixed at a 50-to-6 ratio treatment diet...

Holstein calves weighing less than 20 kg at birth have been noted in Korea. Due to insufficient information, we raised small calves with age-matched normal birth weight Holstein calves and determined body weights before puberty. In addition, 3 single nucleotide polymorphisms (SNPs) of the growth hormone (GH) gene were analyzed. Up to 10 months of age, low birth weight calves were smaller than n...

Metabolic body size of veal calves is still calculated by using the 0.75 exponent and no data were available to determine energy cost of physical activity during the whole fattening period. Data from two trials focusing on protein and/or energy requirements were used to determine the coefficient of metabolic body size and the energy cost of standing activity in male Prim'Holstein calves. Total ...

The objective of this study was to characterize breeds representing diverse biological types for birth and weaning traits in crossbred cattle (Bos taurus). Gestation length, calving difficulty, percentage of unassisted calving, percentage of perinatal survival, percentage of survival from birth to weaning, birth weight, weaning weight, BW at 205 d, and ADG was measured in 1,370 calves born and ...

Effects of supplementing growing steers consuming forage-based diets with high levels of partially hydrogenated tallow on feed intake, digestibility, live weight gain, and carcass characteristics were determined in this study. In Exp. 1, Holstein steer calves were fed bermudagrass hay alone (Control) and with a ground corn-based concentrate at .95% BW (DM basis) plus partially hydrogenated tall...

Calves intensively fed milk replacers frequently develop postprandial insulin resistance, characterized by excessively elevated plasma insulin concentrations, hyperglycemia, and glucosuria. To test the hypothesis that insulin secretion and insulin-dependent dependent glucose metabolism are modified by age and carbohydrate intake, 20 male calves (Simmental x Red Holstein) were fed a milk replace...

The present study was conducted to investigate the effects of crude protein (CP) content starter feed and wheat straw (WS) processing on growth performance, digestibility, ruminal fermentation, behavior Holstein calves. Sixty calves (28 male 32 female) were randomly assigned 1 4 treatments in a randomized complete block design. Treatments 2 × factorial arrangement (1) lower-CP ground mixed with...

Previous studies have determined that stress causes decreases in feed intake and efficiency in livestock, but the effect of repeated transport on these parameters has not been well studied. This study determined how repeated transport affected calf post-transport behavior, feed intake, ADG, and feed conversion. Thirty-six 4-mo-old Holstein steer calves were housed in groups of 6 with each group...