scholarly journals Performance, carcass traits and costs of Suffolk lambs finishing systems with early weaning and controlled suckling

Revista CERES ◽  
2014 ◽  
Vol 61 (2) ◽  
pp. 184-192 ◽  
Author(s):  
Sergio Rodrigo Fernandes ◽  
Jordana Andrioli Salgado ◽  
Andressa Santanna Natel ◽  
Alda Lúcia Gomes Monteiro ◽  
Odilei Rogério Prado ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Visceral Fat ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Fat Content ◽  
Growth Potential ◽  
Early Weaning ◽  
Higher Weights ◽  
Daily Gain

The performance, carcass traits and finishing costs of Suffolk lambs were evaluated in three systems: (1) lambs weaned with 22 kg of body weight (BW) and supplemented with concentrate on pasture until slaughter; (2) lambs weaned with 22 kg BW and fed in feedlot until slaughter; (3) lambs maintained in controlled nursing after 22 kg BW and creep fed in feedlot until slaughter. Average daily gain (ADG) was 224 g/d for lambs weaned and supplemented with concentrate on pasture, 386 g/d for lambs weaned in feedlot and 481 g/d for lambs under controlled nursing. Empty body weight and visceral fat deposition were highest in lambs from feedlot systems. Carcass weights and carcass yields were highest for lambs in controlled nursing. Finishing total costs were highest in controlled nursing and lowest in the system with weaning in feedlot. High concentrate diet associated with controlled nursing in feedlot allowed lambs to reach the growth potential and carcasses with higher weights, higher yields and higher fat content. After weaning, lambs in feedlot fed with high concentrate diet had higher weight gain than lambs supplemented with concentrate on pasture. Carcasses produced under these two systems presented the same characteristics. The system with weaning in feedlot showed the lowest cost per kg carcass.

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 Effect of feeding high yielding fodders on growth performance of growing Hilly Brown Bengal goat

2021 ◽  
pp. 73-81
Author(s):  
MM Rahman ◽  
NR Sarker ◽  
MA Alam
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Average Daily Gain ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Natural Grass ◽  
Daily Gain

This study was carried out to evaluate the feeding effect of high yielding fodders (HYF) on feed intake and growth performance of growing Hilly Brown Bengal (HBB) goat. For this purpose, a feeding trail was conducted with 16 growing HBB kids (4 to 5 months) by dividing equally in four groups having four replicates for a period of 75 days. The goats in group T0 (control) received natural grass along with 101.30g concentrates and adlibitum cowpea hay, whereas in group T1, T2 and T3, only natural grass was replaced by BLRI Napier 3, BLRI Napier 4 and Ruzi fodder, respectively. Total dry matter intake (DMI), roughages DMI, crude protein intake (CP), body weight gain (kg), average daily gain (g) and forth night body weight gain (g/day) were studied. Results revealed that, DMI (288.39, 285.71, 293.48 and 301.35 g/day in group T0, T1, T2 and T3, respectively), body weight gain (3.60, 3.74, 3.73 and 3.77 kg in group T0, T1, T2 and T3, respectively), average daily gain (47.32, 49.16, 49.12 and 48.92 g in group T0, T1, T2 and T3, respectively) and feed conversion ratio (6.2, 5.9, 6.0 and 6.1 in group T0, T1, T2 and T3, respectively) of HBB kids were not differed significantly (P>0.05) for all the treatment groups. The DMI from roughages (196.2, 193.5, 201.3 and 209.2 g/day in group T0, T1, T2 and T3, respectively) and CP intake (38.7, 42.1, 48.3 and 38.8 g/day in group T0, T1, T2 and T3, respectively) were significantly varied (P<0.05), while highest CP intake was found in the treatment group T2. Forthnight body weight (g/day) was not significantly (P>0.05) gained with feeding of HYF for all the treatment groups. From this study, it can be concluded that, growing HBB kids could equally be supplied with either BLRI Napier 3 or BLRI Napier 4 or Ruzi fodder in addition to ad libitum cowpea hay for better voluntary feed intake and growth. Bang. J. Livs. Res. Vol. 27 (1&2), 2020: P. 73-81

EFFECTS OF ZERANOL ON WEIGHT GAIN, BONE GROWTH AND OTHER CARCASS TRAITS IN STEERS AND BULLS

1985 ◽  
Vol 65 (4) ◽  
pp. 835-840
Author(s):  
Z. I. CHAUDHARY ◽  
M. A. PRICE ◽  
M. MAKARECHIAN
Keyword(s):  
Weight Gain ◽  
Sexual Development ◽  
Significant Interaction ◽  
Bone Growth ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Average Weight ◽  
Trial Period ◽  
Metatarsal Bones ◽  
Daily Gain

The effects of zeranol were studied in 24 steers and 24 bulls starting at an average weight of 200 kg for a trial period of 183 days. Bulls grew faster than steers (P = 0.07) and zeranol-treated cattle showed higher average daily gain than controls (P < 0.05); there was no significant interaction between gender and treatment. Castration increased carcass fatness (P < 0.01) and decreased dressing percent (P < 0.01), rib-eye area (P < 0.01), shank muscle (P < 0.01) and shank muscle:bone ratio (P < 0.01). Implantation with zeranol had no effect on these traits. The weights of the radio-ulna, metacarpal and metatarsal bones were not significantly affected by gender or treatment. Growth at the distal end of the radius during the last 2 mo of the experiment was significantly less in treated cattle than in controls (P < 0.01) and in steers than in bulls (P < 0.01). Zeranol resulted in larger pelvic openings (P < 0.01) in bulls and steers and reduced libido (P < 0.05) in treated bulls. Key words: Cattle, zeranol, bone growth, castration, carcass traits, sexual development

scholarly journals Laboratory study to determine the effect of a probiotic mixture on chicken-broiler

2005 ◽  
Vol 21 (3-4) ◽  
pp. 107-123
Author(s):  
Ivan Ivanov
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
The Body ◽  
Daily Weight Gain ◽  
Gram Positive Bacteria ◽  
Gram Negative Organisms ◽  
Daily Gain ◽  
Experimental Group

The experiment was performed in two groups of broiler chickens. The birds from the experimental group were treated with the combination of 3% lactic bacteria. 1% baker's yeasts and 0.7% citric acid, added to food. It was found out that the treatment resulted in shifting the microbial balance in avian gastrointestinal tract in favour of Gram-positive bacteria (77-80%) while in control birds Gram negative organisms prevailed (90%). Both the volume and the weight of viscera of experimental chickens, obtained following slaughtering was by 20-60% higher compared to controls. Furthermore, 75% of treated birds reached a slaughtering weight (1800 g) for 42 days with an average daily weight gain of 57 g and expenditure of 2.3 kg fodder per 1 kg weight gain, whereas the body weight of control birds was by 26.5% lower than the standard one, the fodder expenditure was 3.1 kg per 1 kg weight gain and the average daily gain was 42 g. The mortality in controls was 13% while in treated birds there were no lethal cases. The price of one kilogramme body weight in experimental birds was by 0.15 $ lower compared to controls.

scholarly journals Effect of rbST on weight gain and fat cover of heifers in semiconfinement

2016 ◽  
Vol 9 (2) ◽  
pp. 43
Author(s):  
B. R. Fonseca ◽  
R. C. A. Berber ◽  
P. S. A. Moreira
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Animal Feed ◽  
Average Daily Gain ◽  
Live Weight ◽  
Final Body Weight ◽  
Significance Level ◽  
Brachiaria Ruziziensis ◽  
Significant Difference ◽  
Daily Gain

The objective of this study was to evaluate the effect of recombinant bovine somatotropin (rbST) on average total weight gain, average daily gain, muscularity and finishing. 24 Nellore heifers were used, up to two years of age and weighing 307.4 kg. The animals were semi-confined in Brachiaria ruziziensis and were supplemented per day, with 1.5% kg live weight per animal feed. Heifers were divided into 2 groups, T1: with the use of rbST and T2: unused rbST (control). The rbST was applied every 14 days at a dose of 500 mg per animal. For the statistical analysis, the results were submitted to analysis of variance (ANOVA) at 5% significance level. There was no significant difference (p> 0.05) for average initial body weight, average final body weight, total average gain and average daily gain, and ribeye area (REA) adipose tissue thickness. Therefore the use of rbST did not promote change in performance characteristics in Nellore heifers 2 years old.

scholarly journals Performance, carcass traits, and non-carcass components of feedlot finished lambs from different residual feed intake classes

2018 ◽  
Vol 39 (6) ◽  
pp. 2645 ◽  
Author(s):  
Raizza Fátima Abadia Tulux Rocha ◽  
Andréa Roberto Duarte Lopes Souza ◽  
Maria Da Graça Morais ◽  
Mayara Mitiko Yoshihara Carneiro ◽  
Henrique Jorge Fernandes ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Residual Feed Intake ◽  
Dry Matter Intake ◽  
Mineral Mixture ◽  
The Mean ◽  
Daily Gain

This study aimed to assess the performance, carcass traits, and non-carcass components of feedlot finished Texel crossbred lambs from different residual feed intake classes (RFI). Forty-seven uncastrated male Texel crossbred lambs (¾ Texel + ¼ Pantaneira) tested here were 4-month-old with an initial weight of 29.9 ± 5.5 kg. The lambs were confined for 70 days for individual dry matter intake (DMI) and average daily gain (ADG) assessment. The diet containing corn silage was provided as roughage, while the concentrate consisted of corn grain, soybean meal, urea, and mineral mixture with a 40:60 roughage to concentrate ratio and 76.34% total digestible nutrients (TDN). After confinement for 70 days, the lambs were slaughtered to assess carcass traits and non-carcass components. Based on the RFI, lambs were divided into three classes according to the standard deviation (sd): Positive RFI (inefficient, 0.5 above the mean), Negative RFI (efficient, 0.5 below the mean), and Medium RFI (intermediate). Classes with Negative (efficient) and Positive RFI (inefficient) showed no differences in ADG (0.321 vs 0.306 kg; P > 0.05). Dry matter intake (g d-1), and percentage of body weight (BW) differed significantly between the RFI classes (P < 0.05). Compared to lambs in the inefficient class, those in the efficient class (Negative RFI) showed a 9% reduction in DMI and had the same ADG. The lambs in either Positive or Negative RFI classes showed no weight differences between non-carcass components (P > 0.05). The RFI classes showed no differences in shrunk body weight, hot carcass weight, hot dressing, and weight of commercial cuts (P > 0.05). They showed no differences in neck, shoulder + shank, loin, rack, flank steak, rack cap off, and leg weights (P > 0.05). Our results indicate that improvement in feed efficiency, as a function of the RFI index, does not compromise performance and carcass traits of Texel crossbred lambs.

scholarly journals Comparison of Growth Performance of Khari Goats Fed with Different Level of Rice Bran and Urea Treated Rice Straw (UTRS) in Fodder Based Diets

2012 ◽  
Vol 12 ◽  
pp. 55-60
Author(s):  
MR Tiwari ◽  
BK Shrestha ◽  
LN Panday ◽  
P Mandal
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Rice Straw ◽  
Rice Bran ◽  
Dry Matter ◽  
Body Weight Gain ◽  
Average Daily Gain ◽  
Control Group ◽  
Research Station ◽  
Daily Gain

For correcting, the nutritional imbalance of rice straw feed diet by supplementing energy and protein rich concentrate (rice bran) an experiment was carried out in growing male goats at Agriculture Research Station (Goat), Bandipur, Tanahun from November 2009 to Januwary 2010. Twelve goats of 6-7 months of age and similar body weight were divided into four treatment groups having three animals in each group by using complete randomized design. Four types of diet were formulated for these experimental animals. The animals of control group (treatment 1) were provided UTRS, Raikhanayo and concentrate mixture at the rate of 65, 25 and 10% of dry matter requirement, respectively. Dry matter requirement of treatment 2 was fulfilled by providing urea treated rice straw (UTRS), Raikhanayo and rice bran @ 65, 25 and 10%, respectively. Treatment 3 received dry matter requirement by UTRS, Raikhanayo and rice bran @ 55, 25 and 20%, respectively whereas treatment 4 got @ 45, 25 and 30 percent UTRS, Raikhanayo and rice bran, respectively. The study revealed that there was no significant effect in fodder and UTRS intake between diet groups except rice bran (P<0.001). Likewise, there was highly significant (P<0.001) effect in total dry matter intake between diet groups. The highest body weight gain was observed in treatment 4 (17.5 ± 1.8 kg) followed by treatment 3 and 2 (15.66 ± 1.15 kg and 15.5 ± 3.27 kg, respectively). The lowest body weight gain was noted for treatment 1 (14.5 ± 1.80 kg); however, it was also found non-significant between diet groups. Average daily gain was recorded highest in treatment 4 (50 g /day) followed by treatment 2 (31.44 g /day) whereas average daily gain for treatment 1 and 2 were recorded similar (27.77 g /day).DOI: http://dx.doi.org/10.3126/njst.v12i0.6480 Nepal Journal of Science and Technology 12 (2011) 55-60 

scholarly journals Performance, carcass characteristics, and centesimal composition of meat from Santa Inês lambs and Texel crossbred lambs (Santa Inês × Texel)

2019 ◽  
Vol 99 (2) ◽  
pp. 228-236
Author(s):  
Iolanda Aparecida Nunes ◽  
Ricardo Alessandro Martins Brito ◽  
Letícia Aparecida de Morais ◽  
Vanessa Souza Silva ◽  
Marco Antônio Pereira da Silva ◽  
...  
Keyword(s):  
Weight Gain ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Great Influence ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Feed Conversion ◽  
Significant Difference ◽  
Santa Inês ◽  
Daily Gain

This study evaluated the performance, carcass characteristics, and centesimal composition of the meat of intact and castrated lambs of the Santa Inês breed and of the crossbred animals: one-half Santa Inês × one-half Texel. Thirty-four lambs were used, nine intact and nine castrated males of the Santa Inês breed, and seven intact and nine castrated crossbred males, all aged between 6 and 7 mo and with an average live weight of 18.2 kg. The design was completely randomized in a 2 × 2 factorial (two crossing and two sexual conditions), with statistical analyses performed in the STAT version 9.4 program. There was a significant difference the Santa Inês and the Texel and Santa Inês crossbred animals in feed conversion and average daily gain, with superiority of the latter group. Castration of animals aged <12 mo had no significant effect on the performance and on the carcass traits of the Texel and Santa Inês crossbred animals, whereas the genotype had a great influence on weight gain and on subjective and quantitative carcass characteristics, demonstrating that crosses in sheep are needed to explore the complementarity of breeds, and heterosis is needed to achieve better performances and carcass characteristics.

scholarly journals Effect of High Potency Growth Implants on Average Daily Gain of Grass-Fattened Steers

Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 587
Author(s):  
Rodrigo Arias ◽  
Cristobal Santa-Cruz ◽  
Alejandro Velásquez
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Average Daily Gain ◽  
Total Weight ◽  
Analysis Of Covariance ◽  
Control Group ◽  
Growth Promoter ◽  
High Potency ◽  
Total Weight Gain ◽  
Daily Gain

High potency growth promoter implants (HGPs) are widely used under feedlot conditions but there are few reports under grazing conditions. The study’s goal was to assess the effect of HGPs on the average daily gain of steers fattened in pastures. A total of 57 crossbreed steers (Hereford × Angus)—initial body weight = 356.65 kg ± 5.04 (SEM)—were randomly allocated to one of three groups: Control without HGP (n = 19), Synovex group (n = 17), and Revalor group (n = 21). The fattening period was 67 days using paddocks of Lolium perenne L. and Trifolium repens L. Body weight was recorded three times in the period. The data were analyzed using an analysis of covariance with a level of significance of 5%. The average daily gain (ADG) (1.55 ± 0.07 and 1.48 ± 0.09 kg/d) and the total weight gain (103.4 ± 4.9 and 99.2 ± 5.8 kg) were similar for Revalor and Synovex, respectively (p > 0.05). Moreover, HGP groups showed higher ADG and total weight gain (p < 0.01) than the control group (ADG = 0.93 ± 0.08 kg/d and a total weight gain of 62.2 ± 5.2 kg). Final body weights were 527.8 ± 8.5 kg and 512.2 ± 9.9 kg for Revalor and Synovex, respectively; and 479.9 ± 10.1 kg for Control. In conclusion, grazing-finished steers showed better performance when high potency HGPs were used, improving the ADG and final live body weight, generating a marginal income that justifies the use of the technology under grazing conditions

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