EFFECT OF ANABOLIC IMPLANT AND IONOPHORE ON THE PERFORMANCE OF GRAZING STEERS

1987 ◽  
Vol 67 (2) ◽  
pp. 461-467 ◽  
Author(s):  
L. M. RODE
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Factorial Design ◽  
Key Words ◽  
Average Daily Gain ◽  
Grazing Season ◽  
17Β Estradiol ◽  
Anabolic Implants ◽  
Daily Gain ◽  
Cattle Feedlot

In a 110-d grazing study, 75 yearling steers were left unimplanted or implanted at Day 0 with 24 mg 17β-estradiol, 36 mg zearanol, 72 mg zearanol, or 36 mg zearanol at Day 0 and 84. Within each implant group, steers were also supplemented with barley (0.5 kg head−1 d−1) with or without lasalocid (0.75 mg kg body weight−1 d−1) or were given no supplement in a 5 × 3 factorial design. Average daily gain (ADG) for all implanted steers was 17.5% greater (0.94 vs. 0.80 kg d−1) than for unimplanted steers (P < 0.01). Increasing the dosage of zearanol from 36 to 72 mg extended the time over which ADG was increased but total liveweight gain and ADG over the 110-d grazing season were similar for all implant types. A second implant of zearanol (2 × 36 mg) increased ADG during the final 26 d of the pasture phase and during the drylot period, compared with 72 mg zearanol given initially. Barley + lasalocid-supplemented steers had ADG 17.3% greater (1.02 vs. 0.87 kg d−1) than barley-supplemented steers (P < 0.01). During the following drylot phase, when no lasalocid was fed, ADG was lower (P < 0.10) for steers that had previously received lasalocid than for other groups. No interactions were observed between implant and supplement type. Thus, the anabolic implants and ionophores used in this study are additive in improving growth rate. Key words: Cattle, feedlot, grazing, lasalocid, zearanol, 17β-estradiol, growth

scholarly journals DYNAMICS OF GROWTH IN THE GOUSES UNDER CONDITIONS OF THE COMBINED PHARMACOPROPHYLACTIC HOMOBIOTICS, PROBIOTICS BASED ON THE RECOMBINANT BASILL AND ENROFLOXACIN STRAIN

2019 ◽  
pp. 104-110
Author(s):  
G. A. Nozdrin ◽  
N. A. Gotovchikov ◽  
M. S. Yakovleva ◽  
N. S. Yakovleva ◽  
M. B. Lazareva
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Physiological State ◽  
Average Daily Gain ◽  
Live Weight ◽  
Absolute Weight ◽  
Probiotic Preparation ◽  
Daily Gain

The combined effect of homobiotics, probiotics based on recombinant strains of g. Bacillus, & enrofloxacin on the dynamics of body weight gain in geese was studied. According to the principle of steam-analogs, one control and five experimental groups of 10 goslings in each group were formed. Gosyatam experimental groups used homobiotics vetom 15.1; vetom 13.1 incombination with enrofloxacin followed by replacement with a probiotic preparation Vetom 1.2. The absolute body weight and average daily gain in geese under the influence of the studied drugs increases. The severity of the effect depended on the pharmacological composition of the drugs used. The maximum absolute weight gain was observed when using the drugs according to the scheme: vetom 13.1 at doses of 25–50 mg/kg for 16 days, with further use of a 10% enrofloxacin solution at a dose of 0.5 ml/kg for 5 days and in The experiment period was 1.2 at a dose of 50 mg/kg for 16 days. After the cessation of the use of drugs, the growth rate increased for 30 days when prescribing the drugs according to the scheme: veto 13.1 at a dose of 50 mg/kg for 16 days and with further introduction of homobiotic veto 1.2 into the bird in a dose of 50 mg/kg for 16 days. The maximum average daily gain in live weight of geese was observed in the period from the 16th to the 32nd day with the administration scheme: homobiotic vetom 13.1 at a dose of 25 mg/kg of body weight 1 time per day for 5 consecutive days, then every other day for 16 days, then daily 10 % solution of enrofloxacin at a dose of 0.5 ml/kg of body weight for 5 days, then vetom 1.2 at a dose of 25 mg/kg once a day for 16 days in a row. And the maximum average daily gain in the post using period of the drug was observed on the 32nd day of the study according to the scheme: homobiotic veto 15.1 at a dose of 50 mg/kg of body weight 1 time per day for 16 days, then daily with vetom 1.2 at the same dose 1 once a day for 16 days. The studied drugs in the applied doses did not have a toxic effect on the physiological state of geese.

scholarly journals Effect of Birth Weight and Sex on Pre-Weaning Growth Rate of Piglets

2007 ◽  
Vol 50 (5) ◽  
pp. 476-486 ◽  
Author(s):  
D. Škorjanc ◽  
M. Brus ◽  
M. Čandek Potokar
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Birth Weight ◽  
Average Daily Gain ◽  
Growth Potential ◽  
Average Birth Weight ◽  
Creep Feed ◽  
Clustering Approach ◽  
Daily Gain ◽  
Weight Groups

Abstract. A study was conducted to find out the effect of birth weight and sex on growth rate of piglets in pre-weaning period. A total of 466 piglets from 48 litters of multiparous sows (Landrace) were involved in the experiment. Using a clustering approach piglets were assigned into three birth weight groups (Heavy (H), Intermediate (I), Light (L)). For the analysis of growth performance, pigs were weighed every 7 days until weaning at 28 days of age and average daily gain (ADG) was calculated. During lactation, body weight of L piglets was 5.5-fold increased, whereas the increase in I and H piglets were only 4.7-fold and 3.4-fold, respectively. Piglets of L group were significantly lighter at all studied ages compared to piglets of I and H group. The highest ADG was noted in the second week for all three groups; thereafter it decreased in H and L piglets (24% and 17%, respectively). The average birth weight of piglets was positively and significantly correlated with body weight at days 7, 14, 21 and 28. Sex did not affect significantly the ADG of the investigated animals during the four weeks of lactation. The present results indicate that neither milk production after the second week of lactation nor consumption of creep feed are sufficient enough to cover nutrition needs of fast growing piglets. There’s still a lack of optimization of nutrition in pre-weaning period especially for heavier piglets with their higher growth potential.

scholarly journals PUBERAL DEVELOPMENT IN THE NIGERIAN DWARF SHEEP

2021 ◽  
Vol 7 (1) ◽  
pp. 63-69
Author(s):  
B. I. Orji ◽  
J. Steinbach
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Average Daily Gain ◽  
Oestrous Cycle ◽  
Ewe Lambs ◽  
Younger Age ◽  
Daily Gain ◽  
Dwarf Sheep

THE Incidence of the first behavioural oestrus (puberty) in 28 ewe lambs was investigated to determine the effect of the plane of nutrition on it. The ewes were randomly alloted and reared on two planes of nutrition: one exclusively on roughage (grazing and bay) the second roughage supplemented with concentrate at the rate of 454g a day from weaning to puberty. The ewe lambs were checked for standing heat with two vasectomised rams twice daily - mornings and evenings. The age and body weight at puberty and the average daily gain from weaning to puberty In unsupplemented ewes were 339.5 ± 7.8 days, 14.6 ± 0.9kg and 29.4 ± 4.7g respectively. The corresponding figures for the supplemented ewes were 262.0 ± 16.2 days, 16.2 ± 0.7kg and 73.0 ± 6.6g. The ewe lambs born as singles attained puberty at a younger age but lambs fed supplemented concentrate ration had a significantly higher growth rate and attained puberty at a significantly younger age and higher body weight than ewe lambs fed on roughage only. The durations of early postpuberal oestrus and oestrous cycle were 41.03 ± 2.94 hours and 18.00 ± 0.63 days respectively.

Melatonin and cashmere growth in Inner Mongolian cashmere goats

2016 ◽  
Vol 96 (2) ◽  
pp. 108-113 ◽  
Author(s):  
Chun-hui Duan ◽  
Jian-hai Xu ◽  
Yu Zhang ◽  
Zhi-hai Jia ◽  
Wei Zhang
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Growth Phase ◽  
Fiber Diameter ◽  
Average Daily Gain ◽  
Productive Performance ◽  
Cashmere Goats ◽  
Daily Gain

The aim of the study was to investigate the effects of melatonin implants on cashmere growth and productive performance of cashmere goats. A total of thirty female goats were assigned to one of three treatments (n = 10), including control and two treatments where melatonin [2 mg kg−1 body weight (BW)] was implanted either in April and June or in June. Compared with the control, implantation in April and June increased cashmere yield and maximum cashmere length by 20.3% and 15.7%, respectively (P < 0.01), with an average initiation date of 22 May 2013 and cessation date of 26 Mar. 2014. In contrast, no cashmere growth was observed in control goats until 19 June 2013 and the growth ceased on 3 Apr. 2014. Melatonin only implanted in June had no effect on cashmere yield and maximum cashmere length, with an average initiation date of 5 June 2013 and cessation date of 27 Mar. 2014. Cashmere growth rate, cashmere fiber diameter, the final BW, and average daily gain were not influenced by melatonin implantation. Results suggested that melatonin implantation during the cashmere nongrowing period is an effective way to stimulate cashmere growth and extend the cashmere growth phase with April and June identified as the most appropriate time for implantation.

scholarly journals Effect of Non-Conventional and Conventional Fodder on Growth Performance of Goats in Farmers Field Condition

2007 ◽  
Vol 7 ◽  
pp. 15
Author(s):  
M. R. Tiwari ◽  
N. L. Tamrakar ◽  
H. R. Shrestha
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Maize Stover ◽  
Male And Female ◽  
Treatment Groups ◽  
Concentrate Mixture ◽  
Similar Body ◽  
Daily Gain

The present experiment was carried out on farmers’ goats in their sheds in Rayale village of Kavre district for 150 days. Eighteen khari goats (both male and female), 8-12 months old and having similar body weight were randomly divided into three groups comprising of six individuals in each group. Three types of rations were formulated for the experimental goats. Feed intake by experimental goats in terms of green and dry matter was significantly different (P&lt;0.05) between the treatment groups. Growth rate of the goats fed with top dressed maize stover (treatment 2) was higher than the treatment 3 (seasonal fodder adlib + 200 g concentrate mixture) and treatment 1 (1/2 maize stover silage + seasonal fodder adlib + 200 g concentrate mixture). The lowest average daily gain (ADG) was found in treatment 3 where goats were fed conventional fodder and grasses supplemented with concentrate (18.4 g) followed by treatment 1 (24.6 g). <i> Nepal Journal of Science and Technology </i> Vol. 7 2006

scholarly journals Productivity and aggression at grouping of grower-finisher pigs in large groups

2008 ◽  
Vol 88 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Thusith S Samarakone ◽  
Harold W Gonyou
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Group Size ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Average Daily Gain ◽  
Initial Body Weight ◽  
Mortality And Morbidity ◽  
Large Groups ◽  
Daily Gain

A total of eight 11-wk trials were conducted to evaluate the productivity and aggression at grouping of grower-finisher pigs [initial body weight (BW) = 31.8 ± 5.4 kg (mean ± SD), n = 2304] in two group size treatments (18 and 108 pigs pen-1). Pigs were housed on fully-slatted floors, provided one wet/dry feeder space for every nine pigs, and a floor space allowance of 0.76 m2 pig-1 in both group sizes. The level of aggression at grouping was recorded for 2 h starting 0, 24 and 48 h following grouping into small and large groups. Pigs were weighed on weeks 0, 2, 5, 7 and 11, and average daily gain (ADG) was obtained. Average daily feed intake (ADFI) was recorded during two periods (weeks 2 to 5 and 7 to 11). There was no difference in percentage of time spent on aggression between two group sizes up to 48 h following grouping. ADG for the entire 11-wk trial was affected (2%) by large group size (0.971 and 0.955 kg d-1 for groups of 18 and 108, respectively; P < 0.05). However, the greatest effect on ADG was observed during the first 2 wk following grouping (0.919 and 0.833 kg d-1 for groups of 18 and 108, respectively; P < 0.001). There were no significant effects due to group size on ADFI, feed efficiency, variability in final BW within a pen, carcass traits or mortality and morbidity (P > 0.05). In summary, the overall productivity and aggression at grouping did not differ substantially between group sizes of 18 and 108 pigs pen-1. Key words: Large groups, grower-finisher, pigs, productivity, aggression

Uniform or heterogeneous weight groups as factors in mixing weanling pigs

1996 ◽  
Vol 76 (2) ◽  
pp. 171-176 ◽  
Author(s):  
D. A. Francis ◽  
G. I. Christison ◽  
N. F. Cymbaluk
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Average Daily Gain ◽  
Performance Criteria ◽  
Light Weight ◽  
Weanling Pigs ◽  
And Performance ◽  
Daily Gain ◽  
Weight Groups ◽  
Light Medium

A series of trials evaluated the behavior and performance of pigs grouped into three main categories at weaning: (1) unmixed litters, (2) mixed into uniform body weight groups (light, medium and heavy) and (3) mixed into heterogeneous weight groups. The effects of grouping on performance criteria were conflicting among trials and with time after weaning. In trial 1, heterogeneous groups had lower (P = 0.09) average daily gain to 5 d after weaning than intact litters. The reverse was observed in trial 2. In trial 3, uniform weight groups grew more rapidly (P < 0.01) than heterogenous groups. These treatment differences persisted through 19 d post-weaning for pigs in trials 1 and 2 but were no longer evident in trial 3. Play/fight behavior was highest (P < 0.01) among uniform weight groups resulting in an increased wounding score for head and shoulders of pigs in medium and heavy weight groups. In trial 1, structures which allowed individuals to hide their heads were available for the first 5 d but did not affect behavior or wounding. In trial 2, pigs from the three main groupings were mixed again on day 19 into three new groupings (unmixed, uniform weight or heterogenous weight). There were no performance differences among the nine grouping combinations 40 d after weaning. We conclude that if litter groups cannot be maintained after weaning, it may be advantageous to mix newly weaned pigs into uniform weight groups although the benefit is not consistently present. If space is limited, the greatest benefit would be to group light weight pigs together. Key words: Pigs, weanlings, behavior, lesions, head hides, mixing

scholarly journals Studies on dehorning steers in Alberta feedlots

1991 ◽  
Vol 71 (4) ◽  
pp. 1241-1247 ◽  
Author(s):  
L. A. Goonewardene ◽  
R. K. Hand
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Average Daily Gain ◽  
Daily Gain

The study contained 507 crossbred steers from seven lots in five owner-operated feedlots. The objective was to determine the effects of dehorning (DH) at the feedlot on growth rate, compared to a control (CO) consisting of polled or previously dehorned steers. Significant (P < 0.01) treatment differences (DH = 1.11 ± 0.01 kg d−1, CO = 1.16 ± 0.01 kg d−1) and treatment × lot interaction were observed for average daily gain from 0 to 106 d. Key words: Dehorning, steers, feedlot, gain

Response of nursery pigs to diets with increasing levels of raw peas

2006 ◽  
Vol 86 (4) ◽  
pp. 531-533 ◽  
Author(s):  
M. J. Friesen ◽  
E. Kiarie ◽  
C. M. Nyachoti
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Soybean Meal ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Average Daily Gain ◽  
The Body ◽  
Nursery Pigs ◽  
Key Words Growth ◽  
Daily Gain

Five corn-soybean-based diets were formulated to contain 0, 15, 20, 25, or 30% raw peas and fed for 35 d to ninety-six 21-d-old pigs. Raw peas were included at the expense of corn and soybean meal. Increasing levels of raw peas depressed daily gain (P = 0.07), feed intake (P = 0.04) from days 21 to 56. Specifically, pigs fed diet with 25% peas had 19 and 25% lower average daily gain (ADG) and average daily feed intake (ADFI), respectively, than pigs fed the diet with 0% peas. The body weight (BW) was also linearly reduced (P = 0.10) on day 56. However, diets did not affect feed efficiency. Key words: Growth performance, peas, pig

POTENTIAL OF TRITICALE AS A FEED FOR FINISHING HEIFERS

1990 ◽  
Vol 70 (1) ◽  
pp. 325-328 ◽  
Author(s):  
D. R. ZOBELL ◽  
L. A. GOONEWAR-DENE ◽  
D. F. ENGSTROM
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Feed Intake ◽  
Average Daily Gain ◽  
Barley Silage ◽  
Daily Gain

Commercial heifers (n = 120) were randomly assigned to 12 pens (10 heifers/pen) and fed one of four grain diets in combination with barley silage and vitamin premix. Treatments were 100% barley control, 100% triticale, 50% triticale 50% barley, 25% triticale 75% barley. Treatment differences were not significant (P > 0.05) for body weight (BW), average daily gain (ADG), feed intake (FI) and feed:gain (FG).ADG, FI and FG for the 100% triticale treatment were 1.24 kg d−1, 7.88 kg d−1 and 6.29 kg kg−1 respectively, while in the control they were 1.23 kg d−1, 8.03 kg d and 6.39 kg kg−1. Key words: Triticale, heifers, body weight, feed:gain

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