搜索结果: 1-11 共查到“生物学 varying”相关记录11条 . 查询时间(0.14 秒)
Study shows how varying Arctic climate conditions impact vulnerable species（图）
varying Arctic climate conditions impact vulnerable species
2021/4/9
New findings on the diet of Arctic foxes, determined by the condition of their teeth, show how varying climate conditions in the Arctic affect the animals that live there.In a U.S. National Scien...
Impact of glucogenic additive in transition dairy cow diets of varying ruminal starch degradability on yield and composition of milk and reproductive parameters
cows transition period glucogenic additive propylene glycol
2015/6/23
A two-factorial experiment was carried out on 6 groups (10 animals each) of Polish Black
and White Holstein-Friesian cows in the transition period to determine the effect of glucogenic additive
(G...
The Value of Information for Populations in Varying Environments
Information Populations Varying Environments
2010/11/15
The notion of information pervades informal descriptions of biological systems, but formal treatments face the problem of defining a quantitative measure of information rooted in a concept of fitness...
Effects of Varying Dietary Zinc Levels and Environmental Temperatures on the Growth Performance, Feathering Score and Feather Mineral Concentrations of Broiler Chicks
Zinc Environmental Temperature Growth Feathering Score Minerals Broiler
2016/5/5
This study aimed to investigate the effects of dietary zinc (Zn), environmental temperatures and Zntemperature interaction on growth, feathering score and mineral composition of broilers. A to...
Influence of Varying Level of Sodium Bicarbonate on Milk Yield and Its Composition in Early Lactating Nili Ravi Buffaloes
Early Lactating Buffaloes Sodium Bicarbonate Nitrogen Balance Milk Yield and Composition
2016/4/27
Influence of varying level of sodium bicarbonate (SB) supplementation on milk yield and its composition was examined in a randomized complete block design in early lactating Nili Ravi buffaloes during...
Nutrient Intake, Acid Base Status and Growth Performance of Thalli Lambs Fed Varying Level of Dietary Cation-anion Difference
DCAD Thalli Lambs Nitrogen and Calcium Balance Growth
2016/4/26
Influence of -110, +110, +220 and +330 mEq/kg of dry matter (DM) dietary cation-anion difference (DCAD) on growth performance of Thalli lambs were examined in a randomized complete block design. Four ...
Influence of Varying Dry Matter and Molasses Levels on Berseem and Lucerne Silage Characteristics and Their In situ Digestion Kinetics in Nili Buffalo Bulls
Berseem Lucerne Silage Legume Buffalo Digestion
2016/4/25
Influences of forage DM and addition of cane molasses on silage characteristics of berseem (Trifolium alexandrium) and lucerne (Medicago sativa) and their ruminal digestion kinetics in Nili buffaloes ...
Effects of Varying Levels of Whole Cottonseed on Blood, Milk and Rumen Parameters of Dairy Cows
Whole Cottonseed Dairy Cow Rumen Blood
2016/4/21
Four lactating Holstein cows were used in a 4횞4 Latin-square design to determine the effects of various levels of whole cottonseed (WCS) in diets on parameters including milk (yield and fat con...
The Effect of Varying Levels of Tryptophan on Growth Performance and Carcass Characteristics of Growing and Finishing Broilers
Broiler Tryptophan Performance Carcass Characteristics
2016/4/18
The purpose of this experiment was to study the effect of varying levels of tryptophan on the performance and carcass character of broiler. Trial 1: Ninety-six, five-week-old male Hubbard chickens, av...
Effect of Varying Levels of Dietary Minerals on Growth and Nutrient Utilization in Lambs
Minerals Supplementation Sheep Requirements Growth Nutrient Utilization
2016/4/14
Hisardale male lambs (n=24, 4-5 month of age) were maintained on a conventional ration for a month, to equilibrate the body mineral status. Six lambs were sacrificed after one month of feeding; the sa...
Effect of Varying Levels of Aflatoxin, Ochratoxin and Their Combinations on the Performance and Egg Quality Characteristics in Laying Hens
Laying Hens Toxin Egg Production Shape Index Shell Thickness
2016/4/13
A 50 day feeding trial was conducted with White Leghorn (WL) laying hens, 42 weeks old, to determine if feeding of varying levels of aflatoxin (AF), ochratoxin A (OA) or their combinations has any eff...