منابع مشابه
Lactation curve of Beetal goats in Pakistan
This study was accomplished with the objective to determine parameters of lactation curves in Beetal goats using Wood’s model. Therefore, milk yield data from 127 Beetal goats maintained at five different government farms were recorded from post-kidding to drying off of does. Wood model parameters were estimated using non-linear regression and individual curves were fitted. The characteristics/...
متن کاملEvaluation of Non- linear Growth Curves Models for Native Slow-growing Khazak Chickens
Native poultry is a valuable genetic source with high resistance against diseases providing an important subject for breeding programs. The non-linear mathematical modeling of the growth pattern may partly explain the relationship between requirements and body weight to precise feeding that plays a vital role in the animal enterprises. A study was conducted to compare five non-linear models inc...
متن کاملIncidence of Gastrointestinal Parasites in Beetal Goats at District
| Gastrointestinal parasitism is a serious threat to the production capacity of small ruminants throughout the world. This study was conducted to determine the incidence of gastrointestinal parasites and associated risk factors. For this purpose total of 100 fecal samples were collected from suspected goats and processed for qualitative and quantitative examination of gastrointestinal parasites...
متن کاملevaluating non-linear regression models for use in growth analysis of wheat
growth analysis is a valuable method in the quantitative analysis of crop growth, development and crop production. there are many regression models to describe the sigmoid growth patterns. by considering that, the parameters of non-linear regression models have physiological meanings, they are preferable relation to linear regression models. the aim of this study was to collect and evaluate the...
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ژورنال
عنوان ژورنال: International Journal of Livestock Production
سال: 2013
ISSN: 2141-2448
DOI: 10.5897/ijlp12.030