scholarly journals Growth curves of crossbred cows sired by Hereford, Angus, Belgian Blue, Brahman, Boran, and Tuli bulls, and the fraction of mature body weight and height at puberty1,2

2011 ◽  
Vol 89 (8) ◽  
pp. 2373-2379 ◽  
Author(s):  
H. C. Freetly ◽  
L. A. Kuehn ◽  
L. V. Cundiff
Keyword(s):  
Body Weight ◽  
Growth Curves ◽  
Crossbred Cows

Weight and Menstrual Function in Patients with Eating Disorders and Cystic Fibrosis

PEDIATRICS ◽  
1992 ◽  
Vol 89 (3) ◽  
pp. 522-522
Author(s):  
ALBERT C. HERGENROEDER
Keyword(s):  
Cystic Fibrosis ◽  
Eating Disorders ◽  
Body Weight ◽  
Growth Curves ◽  
Ideal Body Weight ◽  
Menstrual Function ◽  
Ideal Body ◽  
The Ideal

To the Editor.— This letter is in response to the article entitled "Weight and Menstrual Function in Patients with Eating Disorders and Cystic Fibrosis."1 Under "Methods," the authors describe a method for calculating percent ideal body weight by plotting the patient's height on standard growth curves derived from the data of Hamill et al,2 and the ideal body weight being the weight at the same percentile for age. Using the tables of Hamill to calculate percentages of height and weight for females older than 10 years and males older than 11½ years should be done cautiously.

scholarly journals Nonlinear modeling growth body weight of Mangalarga Marchador horses

2017 ◽  
Vol 47 (4) ◽  
Author(s):  
Felipe Amorim Caetano Souza ◽  
Tales Jesus Fernandes ◽  
Raquel Silva de Moura ◽  
Sarah Laguna Conceição Meirelles ◽  
Rafaela Aparecida Ribeiro ◽  
...  
Keyword(s):  
Body Weight ◽  
Linear Models ◽  
Nonlinear Modeling ◽  
Growth Curves ◽  
Live Weight ◽  
Information Criterion ◽  
Coefficient Of Determination ◽  
Cross Sectional ◽  
Adult Body Weight ◽  
The Cross

ABSTRACT: The analysis of the growth and development of various species has been done using the growth curves of the specific animal based on non-linear models. The objective of the current study was to evaluate the fit of the Brody, Gompertz, Logistic and von Bertalanffy models to the cross-sectional data of the live weight of the MangalargaMarchador horses to identify the best model and make accurate predictions regarding the growth and maturity in the males and females of this breed. The study involved recording the weight of 214 horses, of which 94 were males and 120 were non-pregnant females, between 6 and 153 months of age. The parameters of the model were estimated by employing the method of least squares, using the iteratively regularized Gauss-Newton method and the R software package. Comparison of the models was done based on the following criteria: coefficient of determination (R²); Residual Standard Deviation (RSD); corrected Akaike Information Criterion (AICc). The estimated weight of the adult horses by the models ranged between 431kg and 439kg for males and between 416kg and 420kg for females. The growth curves were studied using the cross-sectional data collection method. For males the von Bertalanffymodel was found to be the most effective in expressing growth, while in females the Brody model was more suitable. The MangalargaMarchador females achieve adult body weight earlier than the males.

Factors governing the shape of the growth curve of body weight and the age at slaughter of Suffolk × Welsh lambs

1966 ◽  
Vol 8 (3) ◽  
pp. 435-444 ◽  
Author(s):  
J. S. Broadbent ◽  
J. H. Watson
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Growth Curve ◽  
Compensatory Growth ◽  
Marked Effect ◽  
Growth Curves ◽  
Live Weight ◽  
Linear Component ◽  
Slaughter Weight ◽  
Birth Type

Curves of growth in live-weight, from birth to 16 weeks of age, of 362 Suffolk × Welsh lambs were analysed for the effect of sex, birth type, sire and test centre environment and related to variation in age at slaughter.The relative pre-natal disadvantages of twin lambs resulted in their curves of growth differing from those of single-born animals, particularly in males. Test centre environment exerted a marked effect in such cases. At one centre, male twins showed marked compensatory growth.Differences in growth existed between the 14 sire progeny groups. As the linear component of the growth curves decreased, the quadratic values became increasingly negative. Deceleration of growth was most marked in slowest growing progeny groups and this was accentuated by a poor test centre environment.These factors combined to influence age at slaughter, which was also related to birth weight of the lamb. Lambs at the best test centre reached slaughter weight 10 and 16 days earlier than lambs at the two remaining centres. Sires produced differences in age at slaughter of 10 to 14 days, within centres.

Growth Failure in Infants With Bronchopulmonary Dysplasia: Nutrition and Elevated Resting Metabolic Expenditure

PEDIATRICS ◽  
1988 ◽  
Vol 81 (3) ◽  
pp. 379-384 ◽  
Author(s):  
Sharon I. Kurzner ◽  
Meena Garg ◽  
Daisy B. Bautista ◽  
David Bader ◽  
Russell J. Merritt ◽  
...  
Keyword(s):  
Body Weight ◽  
Dietary Intake ◽  
Bronchopulmonary Dysplasia ◽  
Growth Parameters ◽  
Growth Failure ◽  
Growth Curves ◽  
Normal Growth ◽  
Supplemental Oxygen ◽  
Significant Linear Correlation ◽  
Metabolic Expenditure

The mechanisms underlying growth failure in infants with bronchopulmonary dysplasia are poorly understood. Thirteen infants with bronchopulmonary dysplasia at 6 months of corrected age and 12 full-term healthy control infants matched for age or size were studied. Resting oxygen consumption was measured during natural sleep, and an estimation of the resting metabolic expenditure by indirect calorimetry was performed. Growth parameters were measured, and a nutritional profile including dietary intake, stool analysis, and serum albumin, cholesterol, glucose, and prealbumin was obtained. Seven of the 13 infants with bronchopulmonary dysplasia had growth failure (defined as length and weight less than the tenth percentile of the Babson growth curves). These infants had lower birth weight, lower gestational age, and a greater number of days spent in supplemental oxygen or on mechanical ventilation. There was no statistical difference between the bronchopulmonary dysplasiagrowth failure and bronchopulmonary dysplasia-normal growth infants for dietary intake or stool or serum analyses. However, serum prealbumin showed a significant linear correlation with body weight in infants with bronchopulmonary dysplasia. Resting metabolic expenditure was elevated in infants with bronchopulmonary dysplasia with growth failure and was inversely correlated with body weight in all infants with bronchopulmonary dysplasia. Thus, infants with bronchopulmonary dysplasia and growth failure have increased metabolic demands and decreased prealbumin values suggesting a relative state of protein-calorie malnutrition.

scholarly journals Crossbreeding effects on growth and efficiency in beef cow–calf systems: evaluation of Angus, Caracu, Hereford and Nelore breed direct, maternal and heterosis effects

2019 ◽  
Vol 3 (4) ◽  
pp. 1286-1295 ◽  
Author(s):  
Fábio S Mendonça ◽  
Michael D MacNeil ◽  
Willian S Leal ◽  
Rodrigo C C Azambuja ◽  
Pedro F Rodrigues ◽  
...  
Keyword(s):  
Growth Curves ◽  
Beef Cows ◽  
Southern Brazil ◽  
Crossbred Cows ◽  
Beef Cow ◽  
Climatic Regions ◽  
Genetic Groups ◽  
Beef Producers ◽  
Taurine Breed ◽  
Breed Crosses

Abstract The objective of this study was to determine breed additive and heterosis effects on growth curves, total milk yield (TMY), calf weaning weight (WW), predicted energy intake (EI), and cow efficiency (CE) of purebred and crossbred beef cows raised in Southern Brazil. The data were from 175 purebred and crossbred cows representing eight genetic groups: Angus (A), Hereford (H), Nelore (N), A × H (AH), H × A (HA), A × N (AN), N × A (NA), and Caracu (C) × A (CA). Growth of the cows was modeled using the nonlinear Brody function and machine milking was used to assess TMY. WW was linearly adjusted to 210 d. EI was predicted with an equation in which the independent variables were estimates of parameters of the Brody function and TMY. The ratio of WW to EI estimated CE. Taurine–indicine heterosis effects were significant for all traits, and greater than those for taurine breed crosses. In general, crossbred cows were heavier at maturity, matured earlier, produced more milk, weaned heavier calves, and were predicted to consume more energy. Thus, they were more efficient than purebred cows, despite their greater predicted feed intake. Among the purebreds, A cows matured most rapidly, weighed the least at maturity, produced the most milk, weaned the heaviest calves, were predicted to consume the least energy; and were therefore most efficient among the breeds that were evaluated. These results are useful as inputs to bioeconomic models that can be used to predict productive and economic outcomes from crossbreeding and to facilitate recommendations for beef producers of southern Brazil and other similar subtropical climatic regions.

The growth of lambs before and after birth in relation to the level of nutrition

1948 ◽  
Vol 38 (3) ◽  
pp. 243-302 ◽  
Author(s):  
L. R. Wallace
Keyword(s):  
Body Weight ◽  
Actual Body ◽  
Growth Curves ◽  
Live Weight ◽  
Constant Level ◽  
Gravid Uterus ◽  
Standard Diet ◽  
Actual Body Weight ◽  
Weight Growth ◽  
Before And After

SUMMARYIn the investigation described, we have observed a t monthly intervals throughout gestation the changes taking place in a series of similar ewes, in lamb to the same ram, and each receiving the same standard diet.In following the live-weight growth curves of the ewes it was found that on a constant level of feeding the weight gains became greater during each succeeding month of pregnancy, and at corresponding stages were larger for ditocous than for monotocous ewes. This was found to be due to the fact that, although on our diet the ewes did gain slightly in actual body weight, the main increases in live weight resulted from the growth of the gravid uterus itself, and this increases in weight far more rapidly in the later stages of gestation, and is also heavier where twins are carried.

scholarly journals Growth Curves of Japanese Quail as Modified by Divergent Selection for 4-Week Body Weight

1986 ◽  
Vol 65 (10) ◽  
pp. 1825-1833 ◽  
Author(s):  
NICHOLAS B. ANTHONY ◽  
KARL E. NESTOR ◽  
WAYNE L. BACON
Keyword(s):  
Body Weight ◽  
Japanese Quail ◽  
Growth Curves ◽  
Divergent Selection ◽  
Selection For
Sign in / Sign up

Export Citation Format

Share Document