نتایج جستجو برای: weaning average daily gain
تعداد نتایج: 714688 فیلتر نتایج به سال:
Ornithine alpha-ketoglutarate and creatine effects on growth and plasma metabolites of nursery pigs.
Four experiments were conducted to determine the effect of dietary ornithine alpha-ketoglutarate (OKG) and creatine monohydrate on growth performance and plasma metabolites of nursery pigs. In each experiment, treatments were replicated with four to five pens of four to six pigs each. Each experiment lasted from 3 to 4 wk and Phase I (1.6% Lys) and Phase II (1.3 to 1.5% Lys) diets were fed for ...
This study was conducted in Maale district Southwest Ethiopia with the objective of evaluating productive and reproductive performance goats under agro-pastoral management conditions. Thirty households that have flocks numbers more than ten were purposely selected monitored from July 2018 to 2019. Growth data birth weight, three month, six nine month yearly weight; type parity collected. The an...
The purpose of this study was to evaluate the viability and growth rate of piglets after weaning, the content of lipids in the blood and liver, antioxidant activity (AOA) and lipid peroxidation (LPO) when various additives are used in feed. The experiments were performed on two crosses of piglets obtained from Large White breed sows and Landrace breed boars. Twenty to 28 animals were randomly a...
Estimation of genetic parameters and genetic changes for growth characteristics of Santa Ines sheep.
Studying genetic parameters and genetic changes in Santa Ines sheep is important, because it is the commonest breed in Brazil. This study obtained genetic data from 37,735 pedigree records of lambs over 12 years (2003-2014) from 33 flocks in 10 Brazilian States; 11,851 records of performance were available. (Co)variance components, genetic parameters and breeding values estimates were obtained ...
Abstract This study aimed to determine the effect of Indigofera leaves feeding ( zollingeriana ) on performance goat livestock using meta-analysis studies. research begins with integrating secondary data from various publications, getting journals and proceedings sources in PubMed, GS. The publications selected must contain information goats. Furthermore, were collected into a database Microsof...
The weighing records of 18 crossbred females with average live weight of 14.7 ± 3.14 kg were analyzed to study the relationship of the growth of crossbred hair sheep with some zoometric measures. The weight was established and took the measures thoracic perimeter, cannon perimeter, body length, neck length, hip amplitude, ischial amplitude, withers height and croup height. All parameters were s...
Abstract The objective was to determine the effects of increasing energy in lactation diets fed during summer period on sow and litter performance. A total 356 sows (PIC Camborough) were randomly assigned at entry into farrowing room 1 4 treatments within parity a randomized complete block design with body weight breeding day blocks. Pre-farrowing caliper scores balanced across treatments. tria...
Weaning weight, preweaning daily gain and 205-day weight of Hungarian Fleckvieh calves (n=8 929, bulls =4 539, heifers =4 390) born from 232 sires between 1980 and 2003 were examined. Variance, covariance components and heritability values and correlation coefficients were estimated. The effect of the maternal permanent environment on genetic parameters and breeding values were examined. Two an...
Simultaneous selection for low birth weight and high yearling weight has been advocated to improve efficiency of beef production. Two sublines of Line 1 Hereford cattle were established by selection either for below-average birth weight and high yearling weight (YB) or for high yearling weight alone (YW). Direct effects on birth weight and yearling weight diverged between sublines with approxim...
This 4-yr study was conducted with Angus (A)-sired and Polled Hereford (PH)-sired crossbred heifers that were exposed to either A or medium-frame Brahman (B) bulls from primiparous calvings either as 2- or 3-yr-olds. Each year, heifers were allotted at random within breed composition and age of dam to breeding groups on pasture for an 84-d breeding period that began in late March or early April...
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