Introduction: The physical evaluation of feed mostly provides preliminary information on the quality of the material. It involves assessing physical qualities such as weight, colour, smell and whether the material has suffered from any contamination by other materials. Importance of Feed Evaluation Feed evaluation is important because ingredients that belong to the same class contain…
Anti-nutritional factors Anti-nutritional factors (ANFs) are substances that when present in animal feed or water they either by themselves or through their metabolic products reduce the availability of one or more nutrients. Plants contain starch polysaccharides and no-starch polysaccharides (NSPs), and some of them are anti-nutritional factors. NSPs contain sugars other than glucose and/or have…
Farzana Abbasi1 & Tahmina Fakhur-un-Nisa2 & Jingbo Liu1 & Xuegang Luo1 & Imtiaz Hussain Raja Abbasi3Received: 17 June 2018 /Accepted: 13 December 2018 /Published online: 20 February 2019 Springer-Verlag GmbH Germany, part of Springer Nature 2019 AbstractPhosphorus is an essential macro-mineral nutrient for poultry, needed for the body growth, development of bones, genomicfunction, good quality…
Poultry nutrition has been extensively researched so the nutritive requirement of laying hens is well known. The degree of sophistication is such that different strains of laying hens have feeds formulated to meet their specific requirements. The basic requirements are for protein, carbohydrates, fats, vitamins, and minerals. The protein requirement is met by including soybean meal, corn gluten meal, meat and bone…
Branch of zoology that focuses on study of insects i.e. everything about insects. In the strict sense, entomology is the study of insects, but entomologists often study other arthropods such as spiders, scorpions, mites, millipedes, centipedes Insects Classification of insects (Species): Group of individuals that actually or potentially interbreed in nature. Interesting facts about insects…
Introduction of Zoology Zoology (Gr. Zoo, animals & logos, to study) is the study of animals. It is one of the broadest fields in all of science because of the immense variety of animals and the complexity of the processes occurring within animals. There are, for example, over 20,000 described species of bony fishes and…
