نتایج جستجو برای: crossbred

تعداد نتایج: 4530  

2000
Brenda Alston-Mills Sara J. Iverson Marvin P. Thompson

Because of low energy reserves at birth, piglets are dependent on the sow’s milk for survival. Breed differences can influence milk composition. The objective of this study was to examine litter characteristics, milk composition including calcium and the water holding capacity of casein, solvation, between the highly prolific Meishan breed and lean crossbred pigs. Samples were collected by hand...

Journal: :Journal of animal science 2014
A Vallée J A M van Arendonk H Bovenhuis

Charolais bulls are selected for their crossbreed performance when mated to Montbéliard or Holstein dams. To implement genomic prediction, one could build a reference population for each crossbred population independently. An alternative could be to combine both crossbred populations into a single reference population to increase size and accuracy of prediction. The objective of this study was ...

طالبی, محمدعلی , غلامحسینی, کوروش ,

   This study was conducted to compare the feedlot performance and growth traits of Lori-Bakhtiari (n=39), Romanov × Lori-Bakhtiari (n=38) and Pakistani × Lori-Bakhtiari crossbred (n=12) lambs during two consecutive years. Lambs were weaned at the age of 90 ± 5 days. After weaning and preliminary fattening period, three groups of lambs were fattened for 90 days in the same conditions. The resul...

Journal: :iranian journal of applied animal science 2015
m. sydur rahman m. kabirul islam khan t. bilkis

the study was conducted to know the effect of flushed feeding on estrus synchronization and conception rate of holstein ílocal crossbred cow’s after using the gnrh (fertagyl) and pgf2α hormone. as a representative sample 20 holstein ílocal crossbred cows were chosen from chittagong cantonment military dairy farm in bangladesh and the experimental work was carried out for 60 days. ten cows were ...

Journal: :Journal of animal science 1975
G R Rampacek O W Robison L C Ulberg

Embryos were transferred from crossbred donor gilts to eight Duroc, nine Yorkshire and eight crossbred recipient gilts to determine differences in uterine capacity among genetic groups. Donor gilts were injected IM with 750 IU of PMSG on Day 16 (onset of estrus = Day 0). Donors and recipients were mated 12 and 24 hr after onset of estrus. Embryos were recovered on Day 4 and were deposited into ...

2009
D. L. Thomas J. V. Whiteman D. J. Stritzke

Reproductive performance and body weights of four and five-year old crossbred ewes representing five combinations of Finnsheep (F), Dorset (D) and Rambouillet (R) breeding were evaluated when lambing in the summer Oune-July, 1976). The five breed combinations represented were 1f2D, 1f2R; %D, %R; %F, 1f2D, %R; %F, %D, 1f2Rand %F, 3f4R. Breeding effectiveness of purebred and crossbred rams of Ham...

Journal: :American journal of veterinary research 1999
S M McDonnell D A Freeman N F Cymbaluk H C Schott K Hinchcliff B Kyle

OBJECTIVE To compare quantitative measures and clinical assessments of behavior as an indication of psychologic well-being of stabled horses provided drinking water continuously or via 1 of 3 intermittent delivery systems. ANIMALS 22 Quarter Horse (QH) or QH-crossbred mares and 17 Belgian or Belgian-crossbred mares (study 1) and 24 QH or QH-crossbred mares and 18 Belgian or Belgian-crossbred ...

2013
Patrick M. Kgwatalala

Indigenous Tswana chickens are better adapted to prevailing environmental conditions and diseases than their exotic counterparts. They however exhibit slower growth rate and less mature final weight than their exotic counterparts. Crossbreeding of indigenous Tswana chickens with exotic chicken breeds can therefore be used as an alternative strategy to improve growth performance of indigenous Ts...

Journal: :iranian journal of applied animal science 2012
g.h. moghaddam a. olfati h. daghigh kia s.a. rafat

reproductive performance was evaluated in non-lactating crossbred ewes to which were administered the exogenous gnrh and pmsg. the ewes were randomly allocated in three treatment groups (n=40).after accurate detection of estrus and 2 hours prior to mating, 2.5 ml of distilled water and 2.5 ml of gnrh were injected intramuscular to each ewe of the first (control) and second group, respectively. ...

Journal: :iranian journal of applied animal science 2013
m.m. pourseif g.h. moghaddam s.a. rafat h. daghighkia a. pourseif

the main purpose of this study was to evaluate the influence of the photoperiod on the seminal traits of crossbreed wool-producing rams throughout on year period. for the effect of photoperiod two periods were considered: decreasing daylight length (summer and autumn) and increasing daylight length (winter and spring). for the study 5 baluchi × moghani (bl×mg) and 5 arkharmerino × moghani (am×m...

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