نتایج جستجو برای: weaning period
تعداد نتایج: 500573 فیلتر نتایج به سال:
The aim of this study was to describe the postweaning growth of Iberian piglets and its relationship with the occurrence of diarrhea. To assess these factors in response to different weaning ages, a total of 360 pure-breed Iberian piglets were studied. Three trials were conducted with 120 piglets from 24 litters randomly assigned to be weaned at 28 or 42 d of age (12 litters and 60 piglets each...
This research investigates the potential of a new, noninvasive method for determining age of weaning among primates using stable carbon and nitrogen isotope ratios in feces. Analysis of stable isotope ratios in body tissues is a well-established method in archeology and ecology for reconstructing diet. This is the first study to investigate weaning in primates using fecal stable isotope ratios....
Significant relations were observed between select infant-care and weaning behaviors and growth in body weight in common marmoset monkeys (Callithrix jacchus). The patterns of these relations suggest that earlier occurrence of developmental milestones, such as cessation of transport (being off carriers) and weaning to solid food, were associated with slower growth during the subsequent period. ...
The aim of this study was to determine whether gastric intramucosal pH (pHim) and/or gastric intramucosal carbon dioxide tension (PCO2,im) measured by tonometry can be used to predict the success of weaning in chronic obstructive pulmonary disease (COPD) patients. Twenty six consecutive COPD patients, undergoing mechanical ventilation for acute respiratory failure and satisfying the criteria of...
Weanling pigs (n = 176), 21 to 26 d of age (average initial weight, 7.1 kg), were used to evaluate the effects of weaning time (evening vs morning) and feeding time (immediate vs delayed) on postweaning performance. Pigs were randomly allotted within litters to four treatments in a 2 x 2 factorial arrangement as follows: 1) weaning at 2000 with immediate feeding, 2) weaning at 2000 with 12-h de...
INTRODUCTION The effect of hemoglobin levels on the weaning outcomes of mechanically ventilated patients remains under debate, particularly for the patients with difficult weaning. This study aims to evaluate the effect of hemoglobin levels on weaning outcomes in difficult-to-wean patients. METHODS This retrospective cohort study was conducted in a university-affiliated teaching hospital in T...
Various two-breed cross cow groups were mated to Charolais and Limousin bulls to produce a total of574 three-breed cross calves over a two-year period. Average birth weights were 81.2 Ib and 76.2 Ib for calves produced from Charolais and Limousin sires, respectively. Calving assistance was required for 12.4 percent ofCharolais-sired calves and 4.0 percent of the Limousin-sired calves. Charolais...
The study was conducted to evaluate the effect of age at weaning and breed on the stress response of calves to weaning and their temperament. At calving, 14 Parda de Montaña calves and 14 Pirenaica calves were randomly assigned to either early weaning (at 90 days) or traditional weaning (at 150 days) treatment. During nursing, calves were allowed to suckle their dams twice a day for 30 min. Aft...
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