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Showing 1 to 20 of 339 for “"wk"”.
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Adaptation of the Slow Component of VO₂ Following 6 wk of High or Low Intensity Exercise Training
… Subjects trained on a cycle ergometer 4 days.wk-1 for 6 wk with the power output held constant. Maximal cycle ergometry was performed before and after the training period to determine changes in power output and oxygen consumption (VO2) at the LT and peak exertion. Before training and after 1, …
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Effects of weight loss while feeding a moderate-protein, high-fiber diet on body composition, voluntary physical activity, and blood metabolite profiles in overweight cats
… profiles in overweight cats. During a 4-wk baseline period, 8 adult neutered male domestic shorthair cats (mean BW = 7.7±0.4 kg, mean BCS = 7.6/9) were fed to maintain BW. For 18 wk following baseline, food intake was adjusted to allow cats to lose weight at a rate of ~1.5% BW/wk. Cats …
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The effects of LED light flicker on turkey hen production, health, and welfare to 11 weeks of age
… Select turkey hens (n=3267) to 11 weeks (wk) of age. There were three treatments: the 30 Hertz (Hz) treatment (30HZ) the 90 Hz treatment (90HZ) and the 195 Hz treatment (195HZ). Birds were randomly assigned to nine independently controlled rooms (364 birds/room at placement). Performance …
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Relationships among nutritional regimen, metabolic disorders, reproduction, and production in dairy cows during the transition period
… = 0.696). Cows fed HE diets during the last 4 wk prepartum lost more body condition score (BCS) in the first 6 wk postpartum than those fed CE (−0.43 and −0.30, respectively). Cows with 3 or more lactations lost more BCS than cows with one or two lactations (−0.42 and −0.33, respectively). Cows …
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The effects of a working program on aerobic fitness, vitamin B-6 status, and birth outcome in pregnant women taking vitamin-mineral supplements
… of an aerobic walking program, from 22 to 30 wk gestation, on aerobic fitness, vitamin B-6 status, and birth outcome was studied in 28 healthy, pregnant women aged 21-36 yr receiving vitamin-mineral supplements. Aerobic fitness was assessed by heart rate (HR) and relative oxygen consumption …
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Effect of source of trace minerals and plane of nutrition on growth and health performance and hoof development of transported dairy calves
… calves. Ninety Holstein bull calves <1 wk old were assigned to treatments in a 2 x 2 factorial arrangement of plane of nutrition (PN) and trace minerals source (TM) in a randomized, complete-block design. Conventional PN received milk replacer (22% CP, 20% fat; 568 g/d powder for wk 1 to …
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The effects of added dietary fat on young exercising horses
… rate (HR) of 160 beats per minute (BPM) 5 d/wk on an equine treadmill set at go for a training period of 12 wk. A standard exercise test (SET) was performed at wk 0, 6, and 12. Blood samples were taken before, during, and after exercise and analyzed for lactate, glucose, cholesterol, total …
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Feeding Value of High Starch and High Fat Rations for Dairy Calves
… were used in a 3 x 2 factorial experiment of 12 wk to evaluate growth performance when fed control, high starch, and high fat pelleted diets separately or with a supplemental concentrate mix offered the first 6 wk. High starch and high fat diets were formulated to .contain more digestible energy …
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Immunological castration of boars temporarily reduces testosterone concentration, testis size and function, without long term effects on libido and sperm quality
… controls (no Improvest; CNT) (n = 24/group). At wk 10, 15, 20, 25, and 40, blood was collected and serum harvested to evaluate testosterone concentrations via RIA. At wk 25, 18 pigs (n = 6/ group) were sacrificed and testes were removed, weighed, and measured. Libido was assessed at 32, 36, 47, …
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Ensiling characteristics, digestibility and palatability of tropical grasses as affected by growth stage, chopping length and additives
… The forages were harvested 1, 2 and 3 wk after growth, chopped and ensiled in small laboratory silos (3 liter cardboard cylinders double lined with polyethylene bags) alone or with additions of cassava tuber meal, coconut oil meal and formic acid. Cutting grass at 1 wk increased (P<.05) …
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The effects of a walking program on aerobic fitness, riboflavin and thiamin status, and birth outcome in pregnant women taking vitamin-mineral supplements
… of an aerobic walking program, from 22 to 30 wk gestation, on aerobic fitness, riboflavin and thiamin status, and birth outcome were studied in 28 healthy, pregnant women, 24-36 yr of age, receiving vitamin-mineral supplements. Aerobic capacity was evaluated by measurements of heart rate (HR) …
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Effects of varying energy intakes on mammary growth and development in prepubertal heifers
… how varying energy intakes between 2 and 14 wk of age affect mammary parenchymal development. At 2 wk of age, Holstein calves were assigned to 1 of 4 treatments (HH, HL, LH, and LL) with 2 levels of energy intake (High or Low) and 2 periods of growth (2 to 8 and 8 to 14 wk of age). At 14 wk, …
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The effect of different sources of dietary fiber on the plasma total and lipoprotein cholesterol, liver cholesterol, fecal neutral steroid excretion and histology of major organ tissues in hamsters
… was investigated in hamsters. 155, 9-11 wk old, male Golden-syrian hamsters were fed a purified basal hypercholesterolemic diet (0.1% cholesterol, 10% fat, 4% dietary fiber) for 5 wk to elevate plasma lipid levels. Based on wk 4 plasma total cholesterol (TC) levels hamsters with elevated …
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Food Habits, Growth, Conversion Efficiency and Response to Prey Odors of the Copperhead, Agkistrodon Contortrix
… for all snakes with average values of 2.6 mm/wk for adults and 2.1 mm/wk for juveniles. Rate of weight gain was strongly dependent on body weight with adults averaging 2.94 g/wk and juveniles 0.69 g/wk. Values for conversion efficiency averaged 25.4% for adults and 25.9% for juveniles. …
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Evaluating fat quality and bacon slicing yields in immunologically castrated barrows
… study by increased lipid content (71.6% at 4 wk to 77.2% at 8 wk after second dose in IC) and reduced IV of belly adipose tissue (64.0 at 4 wk to 60.9 g/100g at 8 wk after second Improvest dose in IC). In PC barrows, lipid content was also increased (81.7% at 4 wk to 84.9% at 8 wk), but IV of …
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In-vitro developmental potential of bovine oocytes obtained by transvaginal follicular aspiration as related to their morphological quality and after microinjection of DNA
… cows were subjected to twice weekly TVF A for 16 wk. Oocytes retrieved were graded and placed in an in-vitro maturation, fertilization and co-culture (IVMIIVFIIVC) program. Two thirds of oocytes were injected with DNA. Good quality oocytes from slaughtered cows (SH) were obtained once monthly and …
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Aerobic Fitness, Physical Activity, and Baroreflex Senstivity in Healthy Adolescents
… (MAQ), determining average total hours (TOT-hrs*wk-1) and average vigorous hours (VIG- hrs*wk-1) per week of PA for the past year. RESULTS: There were 48 healthy subjects (22 males, 18 AA), 14 years of age, who volunteered and were eligible to be included in this analysis. Mean VO2peak was 41.3 ± …
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Short Term Time Course Skeletal Responses to High Intensity Physical Exercise
… = 13) groups. The exercise group trained 6 days/wk for 6 wk, which consisted of maximal isokinetic knee flexion/extension 3 days/wk, combined with 3 days/wk running. The purpose was to expose the tibiae to a period of abruptly increased loading forces. Tibial bending stiffness (EIMRTA), and serum …
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Evaluating lipid oxidation and sensory characteristics in bacon from immunologically castrated barrows
… castration management strategies included 24 wk old IC pigs 4, 6, 8, or 10 wk ASD, 26 wk old IC pigs 6 wk ASD and 28 wk old IC pigs 8 wk ASD. Gilts and PC barrows were slaughtered at 24, 26, and 28 wk of age and pooled across age. Center-cut bacon was laid-out on parchment paper, packaged in …
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Effects of diet on body weight, body composition, metabolic status, and physical activity of adult female dogs after spay surgery
… evaluated weekly. Blood was collected every 4 wk for blood hormone and metabolite measurements. Body composition was measured via DEXA scans, and voluntary physical activity was measured using Actical® devices every 8 wk. All dogs were fed to maintain BW for 12 wk after spay surgery (restricted …
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