scholarly journals Feeding Tall Fescue Seed during Mid and Late Gestation Influences Subsequent Postnatal Growth, Puberty, and Carcass Quality of Offspring

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1859
Author(s):  
Maslyn A. Greene ◽  
Jessica L. Britt ◽  
J. Keith Bertrand ◽  
James L. Klotz ◽  
William Bridges ◽  
...  
Keyword(s):  
Tall Fescue ◽  
Average Daily Gain ◽  
Ergot Alkaloids ◽  
Postnatal Growth ◽  
Late Gestation ◽  
Carcass Quality ◽  
Muscle Weight ◽  
Ewe Lambs ◽  
Semimembranosus Muscle

Weaned lambs (n = 82), born to ewes fed endophyte-free (E−) or endophyte-infected (E+; 1.77 mg hd−1 d−1 ergovaline + ergovalinine) tall fescue seed from d 35 to 85 of gestation (MID) and/or d 86 of gestation to parturition (LATE), were used to examine how ergot alkaloid exposure during fetal development altered subsequent puberty attainment or carcass quality. Lambs were weaned at 75 d of age and separated by sex to assess puberty in ewe lambs (n = 39) and to evaluate growth, carcass and meat quality in wethers (n = 43). Data were analyzed with maternal fescue treatment, stage of gestation, and two-way interaction in the model. Age at puberty tended (P = 0.06) to be longer for ewe lambs born to dams fed E+ fescue during LATE gestation versus those fed E−. Post-weaning average daily gain tended to be higher (P = 0.07) for wether lambs born to dams fed E+ fescue seed during MID gestation compared to E−. Exposure to ergot alkaloids during fetal growth altered (P < 0.10) longissimus muscle weight and color, lipid deposition, fatty acid composition, and shear force values of semimembranosus muscle in wether lambs. These results indicate that exposure to ergot alkaloids in utero does alter subsequent post-weaning puberty attainment and body composition in offspring.

Subsequent Feedlot Performance and Carcass Quality of Steers that Grazed Tall Fescue with Different Endophyte Types

cftm ◽  
2016 ◽  
Vol 2 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Susan K. Duckett ◽  
John G. Andrae ◽  
Joseph H. Bouton ◽  
Carl S. Hoveland ◽  
Mark A. McCann
Keyword(s):  
Tall Fescue ◽  
Carcass Quality ◽  
Feedlot Performance

scholarly journals Effects of Long-Term Gentle Handling on Behavioral Responses, Production Performance, and Meat Quality of Pigs

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 330 ◽  
Author(s):  
Chao Wang ◽  
Yongjie Chen ◽  
Yanju Bi ◽  
Peng Zhao ◽  
Hanqing Sun ◽  
...  
Keyword(s):  
Heart Rate ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Production Performance ◽  
Control Group ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Significant Difference

In order to investigate the effect of gentle handling on the behavior, performance, and meat quality of pigs from weaning to slaughter, 144 6-week-old weaned hybrid Min piglets (a native breed) were selected and divided into a handling group (HG: 9 pens × 8 pigs) and a control group (CG: 9 pens × 8 pigs). After 6 weeks of handling, we observed and then evaluated the pigs’ responses to a handler with behavioral scores. Moreover, we measured heart rate and production performance. Three pigs were randomly selected from each of the 18 pens and divided into a handling group (HG: n = 27) and a control group (CG: n = 27), and the HG pigs were given gentle handling until slaughter. Subsequently, we evaluated meat quality and the production performance of six pigs from each group. The results show that AA test (approaching–avoidance test) scores in HG pigs, the number of contacts with the handler and absence of contact with the handler, were significantly higher than in the CG pigs (p < 0.01). The occurrences of avoidance and looking at the handler were lower in the HG than in the CG group (p < 0.01); however, heart rate was not found to be significantly different between the two groups (p = 0.63). No significant difference was found in the average daily gain, average daily feed intake, and feed conversion ratio between the two groups during the two periods (p > 0.05). The b* value was determined 45 min after slaughter, and it was significantly lower in the HG than that in the CG group (p = 0.002). Furthermore, 2 h after slaughter, the L value of the HG group was significantly higher than that of the CG group (p = 0.047), but no difference was observed in carcass quality or other meat quality indicators between the two groups (p > 0.05). The results indicate that gentle handling could reduce pigs’ anxiety and increase their willingness to approach the handler, increasing the intimacy of the pigs and handlers. However, long-term gentle handling had little effect on pig performance, carcass quality, and meat quality.

132 Effects of feeding stockpiled tall fescue versus tall fescue hay to late gestation beef cows on steer offspring carcass quality and yield

2017 ◽  
Vol 95 (suppl_2) ◽  
pp. 62-62
Author(s):  
A. M. Meyer ◽  
K. N. Niederecker ◽  
A. R. Rathert ◽  
K. E. Shircliff ◽  
Z. D. Callahan ◽  
...  
Keyword(s):  
Tall Fescue ◽  
Beef Cows ◽  
Late Gestation ◽  
Carcass Quality

scholarly journals Influence of Maternal Carbohydrate Source (Concentrate-Based vs. Forage-Based) on Growth Performance, Carcass Characteristics, and Meat Quality of Progeny

Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2056
Author(s):  
Erin R. Gubbels ◽  
Janna J. Block ◽  
Robin R. Salverson ◽  
Adele A. Harty ◽  
Warren C. Rusche ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Late Gestation ◽  
Carbohydrate Source ◽  
Ultrasound Measurements ◽  
Concentrate Treatment ◽  
Progeny Performance

The objective of this research was to investigate the influence of maternal prepartum dietary carbohydrate source on growth performance, carcass characteristics, and meat quality of offspring. Angus-based cows were assigned to either a concentrate-based diet or forage-based diet during mid- and late-gestation. A subset of calves was selected for evaluation of progeny performance. Dry matter intake (DMI), body weight (BW), average daily gain (ADG), gain to feed (G:F), and ultrasound measurements (muscle depth, back fat thickness, and intramuscular fat) were assessed during the feeding period. Carcass measurements were recorded, and striploins were collected for Warner-Bratzler shear force (WBSF), trained sensory panel, crude fat determination and fatty acid profile. Maternal dietary treatment did not influence (p > 0.05) offspring BW, DMI, ultrasound measurements, percent moisture, crude fat, WBSF, or consumer sensory responses. The forage treatment tended to have decreased (p = 0.06) 12th rib backfat compared to the concentrate treatment and tended to have lower (p = 0.08) yield grades. The concentrate treatment had increased (p < 0.05) a* and b* values compared to the forage treatment. These data suggest variation in maternal diets applied in this study during mid- and late-gestation has limited influence on progeny performance.

The effect of implanting testosterone alone or with oestradiol on the growth rate and carcass quality of fattening female hoggets

1961 ◽  
Vol 3 (1) ◽  
pp. 97-102 ◽  
Author(s):  
W. R. Shorthose ◽  
G. E. Lamming
Keyword(s):  
Testosterone Propionate ◽  
Average Daily Gain ◽  
Subcutaneous Fat ◽  
Muscle Size ◽  
Carcass Quality ◽  
Eye Muscle ◽  
Carcass Yield ◽  
Retail Cuts ◽  
Daily Gain

Two trials were completed using a total of 135 female hoggets from 5 to 7 months of age. The effect of implanting 15 or 30 mg. testosterone propionate or 2·5 mg. oestradiol benzoate plus 25 mg. testosterone propionate was assessed on average daily gain, slaughter characteristics and carcass yield. In the second trial some additional data were obtained on carcass quality.No significant effect of testosterone with or without oestradiol could be demonstrated on average daily gain, carcass yield, carcass score or the proportion of retail cuts in the carcass. There was some indication that the treatment could yield carcasses with less subcutaneous fat without diminution of eye muscle size.

scholarly journals PSIX-4 Fetal programming – Maternal plane of nutrition effects on progeny performance, feed efficiency, and carcass quality for feedlot steers

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 411-411
Author(s):  
Kortney Acton ◽  
Ira B Mandell ◽  
Lee-Anne Huber ◽  
Michael A Steele ◽  
Katharine M Wood
Keyword(s):  
Soybean Meal ◽  
Average Daily Gain ◽  
Random Effect ◽  
Late Gestation ◽  
Carcass Quality ◽  
Ultrasound Images ◽  
Feed Conversion ◽  
Organ Weights ◽  
Isocaloric Diets ◽  
Progeny Performance

Abstract To evaluate if maternal supplementation of protein and rumen-protected methionine during late gestation affects steer progeny performance and carcass quality, 138 Angus X cows were used in a 3 x 2 factorial arrangement of treatments. Cows were randomly assigned one of three protein treatments (feeding to meet 90%, 100%, or 110% of metabolizable protein (MP) requirements), with(without) 9 g/d of rumen-protected methionine (MET) and fed these isocaloric diets for ~8 weeks before parturition. Steer progeny (n = 56) were assigned to one of seven pens by weight and received a common corn-based grower diet (58% corn silage, 26% alfalfa haylage, 15% soybean meal) for 47 days, followed by a finisher diet (78% high moisture corn, 12% alfalfa haylage, 8% soybean meal) for 115±31.5 days until slaughter. Body weights were recorded biweekly. Monthly ultrasound images of back and rump fats were captured. Organ weights were recorded at the time of slaughter, with carcass and meat quality recorded 24 to 48 hours later. Data were analyzed using PROC GLIMMIX in SAS, with maternal treatment as the fixed effect, and pen as the random effect. Feeding to meet 90% MP requirements resulted in heavier calf weaning weights compared to 100% and 110% (262, 251, and 245 ±13.9 kg, respectively; P = 0.01). Maternal nutritional treatment did not affect average daily gain, dry matter intake, feed conversion during finishing or organ weights. Increasing dietary MP content from 90%, 100% to 110% reduced grade fat thickness (15.5, 14.7, and 11.8 ±1.11 mm, respectively; P = 0.04) and yield grades (2.7, 2.9, and 2.3 ±0.17, respectively; P = 0.04), but increased lean meat yield (49.5, 49.4, and 50.6 ±0.3%, respectively; P = 0.04). These data suggest that maternal MP content may alter steer progeny carcass traits while maintaining animal performance during the finishing period.

scholarly journals PSIX-5 Fetal programming in an industry applied setting – Effects of feeding methionine during late gestation on progeny performance, feed efficiency, and carcass quality for feedlot steers

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 411-412
Author(s):  
Kortney Acton ◽  
Ira B Mandell ◽  
Lee-Anne Huber ◽  
Michael A Steele ◽  
Katharine M Wood
Keyword(s):  
Soybean Meal ◽  
Average Daily Gain ◽  
Random Effect ◽  
Late Gestation ◽  
Carcass Quality ◽  
Offspring Performance ◽  
Organ Weights ◽  
Feedlot Steers ◽  
Body Weights ◽  
Methionine Supplementation

Abstract The objective of this study was to assess if rumen-protected methionine supplementation during gestation would impact male offspring performance and carcass quality in an applied setting. Sixty-seven gestating cows were randomly assigned to control (CON), or methionine (MET) treatments. Cows had ad libitum access to hay from a round bale feeder and were fed once daily in a bunk for approximately eight weeks prior to calving either: 0.75 kg/head/d of supplement pellet supplying 12 g rumen-protected MET/cow/d, or identical pellet with no added MET. The 34 steer progeny (MET n = 18; CON n = 16) were transported to a feedlot, assigned to one of seven pens by weight and fed a corn-based grower diet (58% corn silage, 26% alfalfa haylage, 15% soybean meal) for 47 days, followed by a finisher diet (78% high moisture corn, 12% alfalfa haylage, 8% soybean meal) for 115±31.5 days until slaughter. Body weights were recorded biweekly. Organ weights were recorded at slaughter. Carcass quality, meat quality, and rib composition were recorded 24 to 48 hours after slaughter. Data were analyzed using PROC GLIMMIX in SAS, with treatment as the fixed effect, and pen as the random effect. Supplementation of MET during pregnancy increased weaning weight (MET: 311, CON: 291 ±14.8 kg; P ≤ 0.001), final weight (ME: 668, CON: 631 ±16.8 kg; P = 0.01), and individual dry matter intake (MET: 13, CON: 12 ±0.5 kg/d; P = 0.04) during the finishing phase. There was no effect of maternal methionine supplementation (P ≥ 0.05) for average daily gain. Hot carcass weight was greater for MET steers (MET 372 vs. CON 353 ±9.5 kg; P = 0.03), while organ weights and carcass quality were not affected (P ≥ 0.05) by MET supplementation. This study showed that supplementing methionine during late gestation in an industry applied setting improved some offspring performance measures but did not result in enhanced carcass quality.

scholarly journals Carcass and meat quality characteristics of lambs reared in different seasons

2017 ◽  
Vol 60 (3) ◽  
pp. 225-233 ◽  
Author(s):  
Hulya Yalcintan ◽  
Bulent Ekiz ◽  
Omur Kocak ◽  
Nursen Dogan ◽  
P. Dilara Akin ◽  
...  
Keyword(s):  
Meat Quality ◽  
Average Daily Gain ◽  
Quality Characteristics ◽  
Carcass Quality ◽  
Fat Percentage ◽  
Overall Acceptability ◽  
Different Seasons ◽  
Pelvic Limb ◽  
Evaluation Panel

Abstract. Thirty-six Kivircik male lambs were used to determine the effects of rearing season (winter rearing – WR; spring–summer rearing – SSR; and autumn rearing – AR) on carcass and meat quality characteristics. Average daily gain in the period 0–134 days, final weight, cold carcass weight and real dressing percentage were higher in WR lambs than lambs from SSR and AR groups. Furthermore, SSR and AR lambs did not show significant differences for these traits (P  >  0.05). WR lambs had the highest values in terms of back fat thickness, subjective carcass fatness score and fat percentage in pelvic limb, which gives information about the carcass fatness. Final meat pH, expressed juice and meat lightness 1 h after cutting were higher for SSR lambs than for WR and AR lambs. SSR lambs had the lowest scores in terms of flavour intensity, flavour quality and overall acceptability in the sensory evaluation panel. In conclusion, WR lambs yielded better carcass quality than SSR and AR lambs. When the rearing season is to be decided, the higher carcass quality of WR lambs and the lesser appreciation of meat of SSR lambs by consumers should be considered.

scholarly journals 443 Impact of ergot alkaloids fed during gestation on fetal growth and subsequent postnatal growth in ewe lambs.

2018 ◽  
Vol 96 (suppl_3) ◽  
pp. 230-231
Author(s):  
J Britt ◽  
S Adams ◽  
M Miller ◽  
C Kojima ◽  
J Andrae ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Ergot Alkaloids ◽  
Postnatal Growth ◽  
Ewe Lambs

scholarly journals Influence of dietary magnesium and selenium levels in finishing diets on growth performance and carcass meat quality of feedlot Pelibuey lambs

2013 ◽  
Vol 56 (1) ◽  
pp. 303-314 ◽  
Author(s):  
L. M. Hernandez-Calva ◽  
J. E. Ramirez-Bribiesca ◽  
I. Guerrero-Legarreta ◽  
L. Hernandez-Cruz ◽  
L. Avendaño-Reyes ◽  
...  
Keyword(s):  
Dry Matter ◽  
Average Daily Gain ◽  
Dry Matter Intake ◽  
Feed Conversion ◽  
Muscle Weight ◽  
Finishing Diets ◽  
Dietary Magnesium ◽  
Feedlot Lambs ◽  
Daily Gain

Abstract. The objective of this study was to evaluate the influence of supplemental dietary selenium (Se) and magnesium (Mg) on feedlot lambs. Sixty-four male lambs were randomly distributed to the following treatments: 1) low level of Mg and Se: diet with 0.18% of Mg and 0.1 μg Se/g, 2) with supplementation of magnesium oxide (MgO): diet with 0.32% of Mg and 0.1 μg Se/g, 3) with supplementation of Sodium selenite (Na2SeO3): diet with 0.3 μg Se/g and 0.18 % of Mg, 4) With supplementation of MgO and Na2SeO3: diet with 0.32% of Mg and 0.3 μg Se/g. There were no differences (P>0.05) in the average daily gain and feed conversion but Se supplement with Na2SeO3 (0.3 μg Se/g) enhanced dry matter intake, dressing percentage (P<0.05) and leg muscle weight (P<0.02). The average values of the water retained potential, coordinate L, a, and sensory analysis were different with Se (P<0.05). Magnesium suplemented as inorganic source (0.32% of Mg) enhanced (P<0.05) some characteristics in sensorial meat analysis.

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