نتایج جستجو برای: average daily growth adg
تعداد نتایج: 1336709 فیلتر نتایج به سال:
Raising replacement heifers represents a substantial cost in dairy farms, with reproductive efficiency being one of the main factors driving total rearing cost. Diseases during preweaning period, such as diarrhea or bovine respiratory disease (BRD), are reported at high incidence risks worldwide. However, long-term effects before weaning on productive and performance remain controversial. This ...
the objective of this study was to evaluate the effects of weaning age on dry matter intake (dmi), average daily gain (adg), feed efficiency (fe), feed cost (fc) and benefit index (bi) of holstein calves reared under organic farming system. thirty two holstein calves were divided into two treatments: early weaning (ew) vs. late weaning (lw). calves in the both groups were provided with whole mi...
Abstract Objectives : We investigated the financial impact of different prevalence levels severe tail lesions (STL) during finisher stage associated with changes in average daily gain (ADG) farrow‐to‐finish pig farms. Methods Prevalence STL was estimated for 31 Regression tree analysis used to identify a threshold differences ADG. Then, carried using Teagasc Pig Production model. Results A ≥0.8...
The objective of this study was to evaluate the effects of weaning age on dry matter intake (DMI), average daily gain (ADG), feed efficiency (FE), feed cost (FC) and benefit index (BI) of Holstein calves reared under organic farming system. Thirty two Holstein calves were divided into two treatments: early weaning (EW) vs. late weaning (LW). Calves in the both groups were provided with whole mi...
The aim of this study was to increase the production efficiency of reared Great sturgeon (Huso huso) in the larval stage (after hatching until absorption of the yolk sac) under the corresponding influence of photoperiod and light intensity. In this study, the larvae from the after hatching to the complete absorption of the yolk sac were exposed to four light intensities (0-10; 70-100; 200-170 a...
Abstract The objective of this study was to compare 3-breed rotational crossbred calves sired by Holstein, Jersey, Montbéliarde, Normande, Viking Red, and Limousin bulls with Holstein fed a high milk allowance for growth, consumption, health scores, profitability in an automated group feeding system. Breed groups were (n = 16), crossbreds Red 24), 6), beef x dairy 45) calves. Calves randomly as...
Data were received from 24 test stations on 3,999 boars tested in fall 1984 and spring 1985. In an effort to increase the connectedness between stations, one reference sire was selected to produce sons (reference boars) through artificial insemination to be tested in the different stations. Fifty-two reference boars were placed across 17 of the test stations. The performance traits analyzed wer...
A 2×3 factorial arrangement of treatments was used to determine the effects of olaquindox and cyadox on immune response of Landrace×Large-White geld piglets that had been orally given 10 CFU of Escherichia coli (E. coli, O139:K88). Factors included (1) E. coli inoculation or control, and (2) no antimicrobials, 100 mg/kg olaquindox and 100 mg/kg cyadox in the basal diet respectively. E. coli ino...
Effects of replacing cottonseed hulls with dry redberry juniper leaves on performance and serum NEFA, urea N, and IGF-1 were investigated in Rambouillet lambs (n = 24, initial BW = 28.6 +/- 4.94 kg). In a study with 2 feeding periods (period 1 = 65% concentrate ration, 28 d; period 2 = 85% concentrate ration, 49 d), lambs were individually fed ad libitum treatment diets containing cottonseed hu...
This experiment was conducted to investigate the effects of palm kernel expellers on growth performance, nutrient digestibility, and blood profiles of weaned pigs. A total of 88 weaned pigs (6.94±0.76 kg body weight [BW]; 28 d old) were randomly allotted to 2 dietary treatments (4 pigs/pen; 11 replicates/treatment) in a randomized complete block design (sex as a block). The dietary treatments w...
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