نتایج جستجو برای: milk composition and dry matter intake milk composition namely fat

تعداد نتایج: 16935292  

Journal: :Journal of dairy science 2006
K J Soder M A Sanderson J L Stack L D Muller

Twenty multiparous Holstein cows in midlactation grazed pastures of 4 forage mixtures in a 12-wk study repeated during 2 grazing seasons to determine if forage mixture complexity affected intake and productivity of lactating dairy cows. The forage mixtures were 1) orchardgrass plus white clover [2 species (SP)]; 2) orchardgrass, white clover, and chicory (3SP); 3) orchardgrass, tall fescue, per...

2007
W. F. Miller J. E. Shirley E. C. Titgemeyer M. J. Brouk M. V. Scheffel R. T. Ethington

We used 24 multiparous Holstein cows in 4 × 4 Latin square design to evaluate full-fat corn germ as a replacement for whole cottonseed and tallow in total mixed diets for lactating dairy cows. Experimental diets on a dry matter basis were: 1) control 3.5% fat; 2) whole cottonseed 5.1% fat; 3) tallow 5.1% fat; 4) full-fat corn germ 5.1% fat. Diets were fed as total mixed rations typical of that ...

Journal: :Reproduction, nutrition, developpement 1987
J Noblet M Etienne

The oxygen (O2) consumption, carbon dioxide (CO2) production, heat production (HP) and milk nutrient intake of 22 litters of suckling piglets were recorded every 4 days from the day after birth to weaning at 22 days of age. At weaning, 147 representative piglets of these litters were slaughtered to measure their chemical composition and to calculate the energy and nutrient balance of individual...

Journal: :علوم دامی ایران 0
سید هادی حسینی دانش آموخته کارشناسی ارشد، گروه علوم باغبانی دانشکده کشاورزی، دانشگاه تربیت مدرس یوسف روزبهان دانشیار گروه علوم باغبانی دانشکده کشاورزی، دانشگاه تربیت مدرس علیرضا آقا شاهی استاد موسسه تحقیقات علوم دامی کشور، کرج جواد رضایی دانشجوی دکتری گروه علوم باغبانی دانشکده کشاورزی، دانشگاه تربیت مدرس

this research was conducted to assess the effect of substituting corn for barley grain in diet on performance and reproductive characteristics of early lactating, holstein dairy cattle. a number of fifteen cows in their second lactation (26±11 dim) with 36.7±5.6 kg milk/d were investigated for 75 day (15 day for adaptation and 60 day for sampling) in a completely randomized design. the iso-ener...

2012
Yoana Dini José Gere Carolina Briano Martin Manetti Paula Juliarena Valentin Picasso Roberto Gratton Laura Astigarraga

Understanding the impact of changing pasture composition on reducing emissions of GHGs in dairy grazing systems is an important issue to mitigate climate change. The aim of this study was to estimate daily CH₄ emissions of dairy cows grazing two mixed pastures with contrasting composition of grasses and legumes: L pasture with 60% legumes on Dry Matter (DM) basis and G pasture with 75% grasses ...

Journal: :Journal of dairy science 2000
M A Bal R D Shaver A G Jirovec K J Shinners J G Coors

Effects of corn silage crop processing and chop length on intake, digestion, and milk production were evaluated. Corn silage treatments were harvested at one-half milkline stage of maturity (65% whole-plant moisture content) and at 0.95-cm theoretical length of cut without processing (control) or 0.95-, 1.45-, or 1.90-cm theoretical length of cut with processing at a 1-mm roll clearance. Twenty...

2015
L. M. Sorathiya M. D. Patel K. K. Tyagi A. B. Fulsoundar A. P. Raval

AIM The objective of this study was to evaluate the effects of sugar beet tubers as a replacer to green fodder on production performance and economics of lactating Surti buffaloes. MATERIALS AND METHODS This trial was conducted at the Livestock Research Station, Navsari Agricultural University, Navsari. Twenty lactating Surti buffaloes in a changeover experimental design were selected to asse...

Journal: :Veterinarski Arhiv 2021

The aim of the present study was to evaluate effects dietary ricinoleic acid from castor oil on milk yield, composition, fatty profile and haemato-biochemical in lactating Kankrej cows. Twenty cows were assigned following groups: control (CON), basal diet without any additive treatment (RAS), with 2 g/animal/day oil. Dietary had no (P>0.05) effect dry matter intake feed efficiency. Milk yiel...

Journal: :علوم دامی ایران 0
مهدی گنج خانلو کامران رضا یزدی غلامرضا قربانی حسین مروج مهدی دهقان بنادکی محمدرضا امامی

this study was conducted to evaluate production response of early lactating cows to rumen protected fats. twelve (nine multiparous and three primiparous) holstein cows (26±4 d in milk) were empolyed in a replicated 3×3 latin square design of 21-d periods. each period consisted of 14 days of adaptation and 7 days of sampling. cows received diets containing either one of two types of protected fa...

Journal: :The Journal of nutrition 2010
Liam A Sinclair Weerasinghe M P B Weerasinghe Robert G Wilkinson Michael J de Veth Dale E Bauman

Conjugated linoleic acids (CLA) have been demonstrated to be a potent inhibitor of milk fat synthesis in ruminants, but effects on carcass composition and organ weight are unknown. Our objectives in this experiment were to determine the dose response of ruminally protected CLA on the performance, organ weight, and fatty acid (FA) composition of early lactation dairy ewes. Twenty-four multiparou...

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