Growth rate of weaned lambs grazing brown midrib sorghum (Sorghum bicolor) supplemented with increasing levels of soybean meal

2014 ◽  
Vol 54 (9) ◽  
pp. 1278 ◽  
Author(s):  
L. Piaggio ◽  
M. de J. Marichal ◽  
M. L. del Pino ◽  
H. Deschenaux

The aim of the present study was to describe the relationship between increasing levels of soybean meal (SBM) supplementation and the growth rate of weaned lambs grazing brown midrib (BMR) sorghum. Sixty Corriedale weaned lambs (3 months old) were divided into 12 homogeneous groups and allocated into three blocks of BMR sorghum (stocking density: 50 lambs/ha) of four plots each. In each block, lambs were assigned (5 lambs/plot.block) to one of the following treatments: grazing sorghum, grazing sorghum + 115 g SBM/lamb.day, grazing sorghum + 230 g SBM/lamb.day, and grazing sorghum + 345 g SBM/lamb.day. Rotational grazing management was implemented. Lambs were weighed at the beginning of the experiment. Final bodyweight and average daily gain (ADG) were analysed according to a completely randomised block design. The relationship between SBM supplementation level and ADG was tested and a non-linear fit with a prediction model of first-order kinetics was determined. Supplemented lambs had a higher (P < 0.036) final bodyweight and presented higher (P < 0.001) ADG than did non-supplemented lambs (31 kg and 120 g/lamb.day vs 26 kg and 55 g/lamb.day in supplemented and non-supplemented lambs, respectively). An asymptotic ADG value estimated by the model of 143.26 g/lamb.day BMR sorghum appeared to be an adequate summer grazing alternative for weaning lambs. SBM supplementation would improve the performance of animals however the level of supplementation would depend on the productive goal.

2015 ◽  
Vol 55 (1) ◽  
pp. 27
Author(s):  
L. Piaggio ◽  
M. de J. Marichal ◽  
A. Pastorín

The aim of this study was to evaluate the use of restricted grazing of an improved natural pasture as an alternative to conventional protein supplements for weaned lambs grazing natural pastures during summer–autumn. Two natural pastures that differed in dry matter allowances were used as basal diets. Sixty Corriedale lambs, 3 months old, were divided into 10 homogeneous groups. For each natural pasture, one group of lambs was randomly assigned to one of the following treatments (at 10 lambs/ha): continuous grazing (control); control + protein block (150 g/lamb. day); control + soybean meal (100 g/lamb. day); control + supplemental protein obtained from grazing for 3 h/day a natural pasture improved with Lotus uliginosus cv. Maku; or same as previous, except that grazing was allowed 1 in 3 days. Performance results (final bodyweight, average daily gain, and difference between initial and final body scores) were analysed as a completely randomised block design with subsampling. Lambs grazing 3 h/day or 1 in 3 days on improved pasture or supplemented with soybean meal showed better (P < 0.05) performance than non-supplemented lambs. Lambs consuming the protein block performed similarly (P > 0.05) to control lambs. The experiment demonstrated that feeding strategies using controlled grazing of natural pastures improved with lotus Maku or soybean meal supplementation are effective to achieve target growth rates of weaned lambs grazing natural pastures in summer–autumn.


Author(s):  
L. U. Onyia ◽  
I. J. Ochokwu ◽  
I. J. Bargudu

Monoculture is the rearing of single species of fish in a pond while polyculture is the farming of two or more species in the same physical space. This study aims to compare the growth parameters of Clarias gariepinus fingerlings in monoculture and polyculture, using concrete and earthen ponds in a randomized complete block design. The polyculture, comprised of Clarias gariepinus and Oreochromis niloticus. 480 fingerlings were used; the stocking density was 40fish in a 3x2x1.5m depth with initial weight (4.84±0.11547) for C. gariepinus in monoculture and 40 each in polyculture with an initial pooled weight of O. niloticus (50g) replicated thrice, it was fed for eight weeks with commercial feed (40% crude protein). Weekly, random sampling was done to measure the growth and adjust the feeding rate. The results revealed that polyculture has the best mean final weight (160.07±0.18559g) and weight gain of 155.29, while the highest total length (45.666±3.179) was recorded in monoculture for Clarias gariepinus reared in an earthen pond. The polyculture had the highest specific growth rate (2.46), Relative growth rate (246.49), and condition factor (0.184). There was a significant difference (P<0.05) in monoculture of both concrete and earthen ponds.


2020 ◽  
Vol 4 (2) ◽  
pp. 694-707
Author(s):  
Henrique S Cemin ◽  
Mike D Tokach ◽  
Steve S Dritz ◽  
Jason C Woodworth ◽  
Joel M DeRouchey ◽  
...  

Abstract Four experiments were conducted to determine the effects of increasing soybean meal (SBM) level in diets with or without 25% distillers dried grains with solubles (DDGS) on growth performance of nursery pigs raised in university or commercial facilities. Treatments were arranged in a 2 × 3 factorial with main effects of SBM (27.5%, 32.5%, or 37.5% of the diet) and DDGS (0% or 25% of the diet). A total of 296, 2,502, 4,118, and 711 pigs with initial body weight (BW) of 10.6, 11.7, 12.5, and 12.3 kg were used in Exp. 1, 2, 3, and 4, respectively. There were 10, 16, 13, and 12 replicates per treatment in Exp. 1, 2, 3, and 4, respectively. After weaning, pigs were fed common diets for approximately 21 d. Then, pens of pigs were assigned to treatments in a randomized complete block design with BW as the blocking factor and experimental diets were fed for 21 d. Pigs were weighed and feed disappearance measured to calculate average daily gain (ADG), average daily feed intake (ADFI), gain-to-feed ratio (G:F), and caloric efficiency (CE). Data were analyzed using the GLIMMIX procedure of SAS with block as a random effect and treatment as a fixed effect. Single degree-of-freedom contrasts were constructed to test the linear and quadratic effects of increasing SBM and their interactions with DDGS. Pigs used in all experiments did not undergo major health challenges during the experimental period and due to the low number of mortality and cull events, statistical analysis was not performed on these variables. The average cull rate was 0.7%, 0.5%, 0.2%, and 0%, and the mortality rate was 0.7%, 0.3%, 0.4%, and 0% in Exp. 1–4, respectively. There were interactions (P ≤ 0.039) between SBM and DDGS for G:F and CE in Exp. 2 and for ADG and ADFI in Exp. 3. These were mostly driven by increasing SBM negatively affecting performance in a greater magnitude when diets contained DDGS compared to diets without DDGS. The main effects of DDGS and SBM were more consistently observed across experiments. Pigs fed diets with 25% DDGS had decreased (P ≤ 0.001) ADG and ADFI in all experiments, as well as poorer (P ≤ 0.028) G:F and CE except for Exp. 3. Feeding increasing amounts of SBM generally did not result in any major impact in ADG but consistently improved (linear, P ≤ 0.078) G:F and CE across experiments.


2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 198-199
Author(s):  
Woo Jung Seok ◽  
Huan Wang ◽  
Sumya Kibria ◽  
Yanjiao Li ◽  
In Ho Kim

Abstract Consumers are concerned about the safety of livestock feed stuff with the increasing use of genetically modified organisms (GMO).The objective of the present experiment was to compare the effect of non-GMO sugar-beet pulp (SBP) and canola meal (CM) in the diet with GMO corn-soybean meal basal diets on reproduction performance in gestation-lactation sows and the performance of their litters. A total of 16 lactating sows (Landrace × Yorkshire, Parity = 2.4), were randomly allotted to 1 of 2 treatments with 8 sows per treatment starting from the last 4 weeks of gestation to 21 day of lactation. Treatments consisted of GMO diet (CON) and non-GMO diet (NO). Sows were individually fed gestation and lactation diets that were formulated to meet or exceed NRC (2012) recommendations for all nutrients. The amount of feed consumed during the lactation periods was recorded and used to calculate the average daily feed intake (ADFI). Number of piglets born and piglets weaned were also recorded to calculate the survival rate. Individual piglet body weight (BW) and litter weights were assessed on days 0, and 26 to calculate average daily gain (ADG). All data were subjected to the GLM procedures of SAS in a randomized complete block design. The variability in the data was expressed as standard error of means (SEM). A probability level of P&lt; 0.05 was considered to be statistically significant. In the current study, NO treatment diets showed comparable effects on the BW, ADFI, backfat thickness, body condition score, and estrus interval of sows as that of basal diet. In addition, there was also no significant difference in growth performance of piglets fed NO treatment diets compared with CON diet (P &gt; 0.05). In conclusion, the results of the current study indicated the utilization of non-GMO beet pulp, and canola meals do not have any adverse effect on the performance of sows and their litters.


1985 ◽  
Vol 41 (3) ◽  
pp. 369-373 ◽  
Author(s):  
E. T. Kornegay ◽  
D. R. Notter ◽  
H. S. Bartlett ◽  
M. D. Lindemann

AbstractBody weight and gain data from eight studies conducted with weaner pigs to determine the relationship between stocking density and performance were used to evaluate the effect of various stocking densities on several factors which measure variation within pens. The initial weight of the pigs ranged from 5·7 to 8·3 kg and final weight ranged from 17·7 to 32·1 kg. There were 244 pens of pigs with floor space ranging from 0·11 to 0·28 m2 per pig. Average daily gain and body weight were depressed as stocking density increased. Natural logarithms of variance, coefficients of variation and ranges of average daily gains and body weights were not increased by stocking density. Body weights and daily gains appeared equally effective in measuring variance of weaner pigs housed at various densities. These results indicate that increasing stocking density within the range of densities tested does not cause a greater variation in body-weight gains.


2019 ◽  
Vol 17 (1) ◽  
pp. 11-15
Author(s):  
Sri Suharti ◽  
T Nugroho ◽  
I F M Kennedy ◽  
Lilis Khotijah

This study aimed to analyze nutrient digestibility of a combination of various protein sources (coconut meal, fish meal and soybean meal) in the concentrate of local rams fed corn cob based diet. Twelve local rams (26.6 ± 1.5 kg BW) fed corn cob based feed were used in this study using in a randomized block design with 4 treatments and 3 replicates. The treatments used were combination of different protein sources namely R1 = combination of coconut and urea cake, R2 = combination of coconut cake and soybean meal, R3 = combination of coconut cake and fish meal, and R4 = combination of coconut, soybean, and fish meal. Data were analyzed by ANOVA and significant differences between treatments were tested by the Duncan Multiple Range Test. The results showed that the combination of various protein sources did not significantly influence the consumption of dry matter and crude fiber, but the used of protein sources of coconut cake and soybean meal significantly increased (p<0.05) intake of organic matter and crude protein. The combination of coconut meal and fish meal (R3) or a combination of coconut cake and soybean meal (R2) increased (p<0.05) nutrient digestibility. Different protein sources do not affect average daily gain (ADG) and feed efficiency . It can be concluded that the use of corn cobs based diet with protein sources combination of coconut meal and fish meal or a combination of coconut cake and soybean meal can increase nutrient digestibility but has not significantly improved body weight and feed efficiency.


Author(s):  
S. Gilani ◽  
M.I. Garcia ◽  
L. Barnard ◽  
Y. Dersjant-Li ◽  
C. Millán ◽  
...  

The following study evaluated effects of a xylanase and beta-glucanase combination on growth performance of broilers fed energy reduced versus nutritionally adequate maize-soybean meal-based diets. A total of 648, one-day-old male broilers (Ross 308) were assigned to floor-pens (24 birds/pen, nine pens/treatment, three treatments) in a randomised block design. Treatments included: (1) a nutritionally adequate positive control diet (PC); (2) a negative control (NC) diet in which energy, crude protein and digestible amino acids were reduced by 3.4% (-105 kcal apparent metabolisable energy), 2.3% and 1.2 to 3.0% vs PC, respectively; and (3) NC plus a xylanase and beta-glucanase combination that supplied 1,220 U xylanase and 152 U beta-glucanase per kilogram of final feed. All diets contained a background of 500 FTU/kg phytase and were offered to birds ad libitum. Birds fed NC showed reduced average daily gain (ADG) by -6.1% (P<0.05); increased feed conversion ratio (FCR) by 9.2 points (P<0.05), and overall (d 1-35) body weight corrected FCR which was increased by 9.4 points (P<0.05) vs the PC group. Enzyme supplementation increased final BW (+4.2%, P<0.05), ADG (+5.4%, P<0.05) and tended to reduce FCR (+7.5 points, P=0.054) from d 22-35 vs NC, without affecting average daily feed intake. Improvements in performance due to the enzyme combination were equivalent to performance on the PC diet in all cases. The results suggested that significant improvements in growth performance of broilers fed maize-soybean meal-based diets which had been reduced in energy and nutrients can be realised by supplementation with xylanase in combination with beta-glucanase.


2020 ◽  
Vol 11 (4) ◽  
pp. 32-44
Author(s):  
А. А. Klimkovetskyi

The studied of Kyiv factory type Ukrainian Black-and-White dairy cows productivity depending on heifers average daily gain. The studied of 1071 animals lifelong use data. Cattle was divide into 5 groups according to the values of average daily gains at the age of 0-3; 3-6; 6-12 and 12-15 months. Animals distributed on the standard deviation from average daily gain of the herd. In animals included in the groups studied the productivity of the first lactation and the period of productive use. It found that increase the heifer’s growth rate leads to decrease in the age of the first calving. The age of the first calving is most affect by the growth rate up to 3 months of age. Preservation of the first calving cows increases when the growth rate of heifers is slightly higher than the average herd. The highest survival of the first calving cows (93.8 %) obtained providing growing heifers aged 3-6 months with increments of 658-853 g. The highest milk yields during the first and highest lactation were obtain by growing heifers aged 6-12 months with an average daily gain over 710 g. Animals with the highest growth rate at other ages had a lactation graph with several peaks, which indicates their increased sensitivity to changes in conditions of use. The bath-shaped udder founded are more common in slow-growing animals from birth to 12 months. The increase in average daily gain led to an increase in the proportion of cows with rounded and cup-shaped udders. The not installed relationship between the average daily gain of heifers and the duration of the open data period and the period between calving. These traits are more relate to the milk production of cows than to the growth of heifers. The greatest duration of lifetime use, milk yield and number of calves during life were at the growth rate of heifers from birth to 12 months at the level of + 0.5σ… + 1.5σ to the average for the herd. A further increase in the growth rate during these periods led to a decrease in the duration of productive use by 0.4… 1.1 years and a lack of 0.4… 0.9 calving. Animals that at the age of 12-15 months had a growth rate at the level of the average herd with deviations within ± 0.5σ were marked by a long productive period. Studies prove the possibility of increasing the lifelong productivity of livestock by heifer’s selection at a growth rate from birth to 15 months.


Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 652 ◽  
Author(s):  
Yixuan Xu ◽  
Zhipeng Li ◽  
Luis E. Moraes ◽  
Junshi Shen ◽  
Zhongtang Yu ◽  
...  

This study investigated the effects of partially substituting soybean meal (SBM) with incremental amount of urea on rumen fermentation, nutrient digestion, plasma metabolites, and growth performance in fattening lambs. Seventy fattening male lambs were sorted into two blocks according to body weight (BW) and assigned to one of five dietary treatments in a randomized block design: SBM at 170 g/kg dry matter (DM) or reduced SBM (40 g/kg DM) plus 0, 10, 20, or 30 g urea/kg DM. Compared with the lambs receiving the SBM diet, the lambs fed the reduced SBM diet plus urea had higher (p < 0.01) concentrations of ruminal ammonia, and the ruminal concentration of ammonia also increased linearly (p < 0.01) with the increasing urea supplementation. Linear and quadratic effects (p < 0.01) on the crude protein (CP) intake and digestibility were observed with the increasing urea addition to the diet. The concentrations of plasma ammonia and blood urea nitrogen (BUN) increased (linear, p < 0.01; quadratic, p < 0.01) with the increasing urea supplementation. The final BW, DM intake (DMI), average daily gain (ADG), and gain efficiency were similar (p ≥ 0.42) between the SBM group and the urea-supplemented groups. However, the DMI and ADG increased quadratically (p ≤ 0.03) with the increasing urea addition to the diet, with the 10 g urea/kg DM diet resulting in the highest DMI and ADG. The results of this study demonstrated that 10 g urea could substitute 130 g soybean meal per kg feed DM without any adverse effect on growth performance or health in fattening lambs when fed a high concentrate diet.


2011 ◽  
Vol 51 (3) ◽  
pp. 191 ◽  
Author(s):  
Robert M. Jones ◽  
Ron E. Crump ◽  
Susanne Hermesch

Records from 9429 pigs raised in 353 grower groups in a commercial Australian piggery were analysed to determine whether grower-group characteristics affected daily gain and backfat of individual pigs. Individual and group effects as well as their interactions were tested for significance (P < 0.05) in a mixed model, with sire fitted as a random effect. Group characteristics affected average daily gain (ADG) more than backfat (BF). The proportion of males in a group influenced both traits significantly, as did the average number of full siblings. Groups with 10–30% of the opposite sex had the highest BF and a 21–30 g/day reduction in ADG compared with the highest-performing groups with less than 10% of males. Each additional full sibling per group increased ADG by 5.5 ± 1.60 g/day and BF by 0.12 ± 0.05 mm. Additionally, ADG increased by 9.8 ± 2.64 g/day per second of group mean flight time and by 4.5 g/day per 10% increase in the proportion of Duroc pigs per group. Group size affected ADG (linear and quadratic) and BF (linear); however, the effect on ADG was considerably larger during the warmer grower season. In commercial piggeries, it may be possible to optimise individual daily gain through the manipulation of grower-group characteristics. Advantages for growth rate arose from including a portion of a calmer line of pigs within groups, optimising the stocking density in warmer months and maximising the proportion of quieter, less fearful pigs in grower groups.


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