scholarly journals Effect of mineral-energy supplementation on the performance of young bulls from different genetic groups on pasture

2022 ◽  
Vol 43 (1) ◽  
pp. 73-90
Author(s):  
Tiago Pereira Guimarães ◽  
◽  
Ubirajara Oliveira Bilego ◽  
Pedro Leonardo de Paula Rezende ◽  
Wescley Faccini Augusto ◽  
...  

The aim of this study was to evaluate the performance of young bulls from three genetic groups, ½ Brangus x ½ Nellore (BRN), Nellore (NEL) and ½ Canchim x ½ Nellore (CAN), reared on pasture and supplemented with mineral (MS) or energy-mineral (MES) supplement. Eighty-one bulls, with a mean age of 12 months and mean body weight of 252 ± 33 kg were used. The experiment was conducted in a 3x2 factorial completely randomized design. Each genetic group was subdivided into six experimental plots, three received MS and three received MES. Animals were managed in a rotational stocking system in a Tifton 85 grass pasture. The consumption of MS was similar between the genetic groups with an average of 0.073 kg animal-1 day-1, whereas the consumption of MES was higher for BRN, 2.10 kg animal-1 day-1, followed by CAN, with 1.57 kg animal-1 day-1, and lower for NEL, with 1.28 kg animal-1 day-1. The average daily weight gain (ADG) was greater for animals that received MES compared to those that were given MS. For animals that received MS, the BRN group had ADG of 0.64 kg animal-1, while the NEL and CAN groups were similar with a mean of 0.46 kg animal-1. For animals that received MES, the CAN group had higher ADG, 0.97 kg animal-1, while the NEL and BRN groups were similar, with an average of 0.86 kg animal-1. Blood levels of total protein, albumin, creatinine, glucose and cholesterol did not change depending on the types of supplements used or between genetic groups. Higher serum urea levels were observed in NEL and CAN animals that received MS. Serum aspartate aminotransferase levels were higher in BRN and CAN animals that received MES. Gains in rump height, height at the withers, body length, rump width and chest perimeter were greater in animals that received MES. Mostly, the gains in morphometric measurements were greater for crossbred animals than for the NEL group. The supply of mineral-energy supplement in Tifton 85 grass pasture during the rainy season is recommended only for Nellore and ½ Canchim x ½ Nellore young bulls. Crossbred young bulls show greater gains in morphometric measurements than Nellore young bulls during rearing.

2020 ◽  
Vol 44 (5) ◽  
pp. 250-256
Author(s):  
A. O. Olosunde ◽  
S. M. Odeyinka

This studywas carried out to determine the utilization and the optimumlevel of offer of bitter leaf (Vernonia amygdalina) meal (BLM) by West African Dwarf (WAD) goats. In a 20-week trial, twenty four WAD goats of both sexes, 5-7 months old, were randomly allotted to four treatments of graded levels of BLM(0% BLM(Control diet), 15% BLM, 30% BLMand 45% BLMdiets) in a completely randomized design to determine the utilization of bitter leafmeal as feed for goats. The dietswere used as supplements to a basal ration of Panicummaximum. Two digestibility trials were carried out. The digestible ether extract intake and digestible organic matter of goats on 0% BLM were significantly (P<0.05) higher than the values obtained for goats on bitter leaf meal diets. The average daily weight gain (g/day) for goats on 0% BML was significantly (P<0.05) higher than that of others. There were significant (P<0.05) differences in the percentage mortality of the goats fed experimental diets. The percentagemortality of goats on 30% and 45%BLMwere significantly (p<0.05) higher than that of others. It is concluded that bitter leafmeal can be included in the diets of (WAD) goats up to15%without any deleterious effect.


2020 ◽  
Vol 7 (3) ◽  
pp. 97-103
Author(s):  
Janaína Teles Da Silva Maia ◽  
Thaís Lopes Gonçalves ◽  
Guilherme De David ◽  
Felipe Nogueira Domingues ◽  
Ricardo Pedroso Oaigen

Livestock systems require a thorough analysis of zootechnical and financial indicators. In this sense, the objective of this study was to evaluate the bioeconomic performance of feedlot bulls with different genetic groups in 2012 and 2013. The experiment was carried out on a farm in Paragominas, State of Pará. The confined animals belonged to the Nellore (NE), ½ Angus ½ Nellore (AN) and ½ Charolais ½ Nellore (CH) breeds. The indicators analyzed were the cost of production and economic indicators. Additionally, zootechnical indicators were evaluated, being considered NE, AN, and CH as treatments in a completely randomized design. The financial results of the total production cost were R$ 118,493.21 in 2012, and R$ 111,166.35 in 2013, and the profitability obtained was 11% in 2012 and 8% in 2013. Regarding the zootechnical indicators, the CH genetic group showed superiority (P 0.01) compared to the NE genetic group for the variables initial weight (IW), final weight (FW), weight gain (WG), average daily weight gain (DWG), and carcass yield (CY). The confinement proved to be economically viable, with positive margins and satisfactory profitability, and the CH genetic group had the best indicators and the highest increase in the final revenue of the activity.


2012 ◽  
Vol 13 (4) ◽  
pp. 1099-1111 ◽  
Author(s):  
Emiliano Nunes do Nascimento ◽  
Marcos Cláudio Pinheiro Rogério ◽  
Ana Sancha Malveira Batista ◽  
Maria Socorro de Souza Carneiro ◽  
Angela Maria de Vasconcelos ◽  
...  

This work aimed to determine the nutrient intake and quantitative aspects of sheep carcass from three different genetic groups. Eighteen animals with initial average body weight of 20.1kg were used in a completely randomized design, in a factorial 3x2 scheme (three different crossbreeds - 6 F1Dorper x non defined breed, 6 F1Somalis x non defined breed and 6 F1Santa Inês x non defined breed versus two diets). The diets fed to the animals were formulated with or without cashew nuts. The inclusion of cashew nut meal in the diet influenced nutrient intake. Differences of intake among the animal groups were observed as higher intake for F1Dorper x non defined breed (NDB), followed by F1Somalis x NDB and for F1Santa Inês x NDB. However, the control diet produced no difference among these genotypes. The average daily gain was lower for both crossbreeds when cashew nut meal was added in the diets. The evaluated crossbreeds and diets did not affect the feed:gain ratio. The carcasses analyses showed that the inclusion of cashew nut meal in the diets reduced the cold carcass weight and the rib weight. The addition of cashew nut meal in the diets for lambs reduces food intake and carcass yield. The crossbreed F1Dorper x NDB presented the higher rate of average daily gain.


2017 ◽  
Vol 22 (4) ◽  
pp. 703-706 ◽  
Author(s):  
Nematollah Asadi ◽  
Seyed Davood Husseini ◽  
Mohammad-Taghi Tohidian ◽  
Nargess Abdali ◽  
Amir Mimandipoure ◽  
...  

This study was conducted to determine the effects of dietary supplementation of peppermint ( Mentha piperita L.) on the performance of broiler chicks. 500 Ross broiler chicks were divided into 5 treatment groups of 4 replications in a completely randomized design format. The diets were ISO-caloric and ISO-nitrogenous ones and contained 1.5, 3, 4.5, and 6 g/kg of peppermint powder. At start, growing, and end periods, the effects of peppermint powder on average daily weight gain, feed conversation ratio, and mortality rate were studied. The results of the present study showed that over a production period of 42 days peppermint had a significant effect on average daily weight gain and feed conversation ratio when compared with the control group ( P < .05). The level of 4.5 g/kg had the highest average daily weight gain (52.78 g), and control treatment with 46.98 g had the least average daily weight gain among different levels of peppermint. The level of 4.5 g/kg and 6 g/kg of peppermint had the least mortality compared to control treatment during training period ( P < .05). From this experiment, we can conclude that treatment with 4.5 g/kg peppermint powder has better performance and carcass characteristics in broilers.


2015 ◽  
pp. 4406-4414
Author(s):  
Carina Scherer ◽  
Antonio Furlan ◽  
Ivan Moreira ◽  
Angela Poveda P ◽  
Paulo Carvalho ◽  
...  

Objective. Determine the nutritional values of ground (SCI) or extruded (SCE) canola seed and evaluate its use in the performance of piglets from 15 to 30 kg. Materials and methods. Two experimental diets with canola seed were evaluated in a digestibility trial. We used 15 barrows with an initial weight of 19.79±1.43kg, distributed in a completely randomized design. In the performance, four experimental diets were evaluated consisting of a diet with soybean oil added (RAS), one with the of addition of canola oil (RAC) and two oil-free; one with 11% SCI included and one with 6% SCE (RSCE) included. 40 commercial hybrid piglets were used that had 15.25±1.5kg initial body weight, randomly distributed, in four treatments and five replicates; two animals per experimental unit. Results. The digestible energy values for SCI and SCE were 4.197 kcal/kg and 5.234 kcal/kg, respectively. The extrusion process improved the digestibility coefficients. Piglets fed with RSCI showed less daily weight gain (DWG) and F:G ratio. Conclusion. Results suggest that SCE can be included in diets of piglets from 15 to 30 kg until 6% without negatively affecting performance.Key words: Animal performance, anti-nutritional factors, digestibility, economic viability (Source: AGROVOC).


2019 ◽  
Vol 20 (3) ◽  
pp. 397
Author(s):  
Junaedi Junaedi ◽  
Husnaeni Husnaeni

This study was conducted to examine the comparison the quality of spermatozoa in four genetic groups of poultry (Pelung chicken, Nunukan chicken, Sentul chicken, and Bangkok chicken). The parameters of this study were the concentration of spermatozoa, motility, viability, semen volume, color, and consistency. The study was designed using a Completely Randomized Design (CRD) with four local chicken nations and four replications. The results showed that the volume of Nunukan chicken semen was 0.32±0.01 mL/ejaculation, Bangkok chicken was 0.31±0.01 mL/ejaculate, Sentul chicken was 0.15±0.02 mL/ejaculate and Pelung chicken was 0.23±0.02 mL/ejaculation. the color of fresh semen is white (Pelung chicken, Nunukan chicken and Sentul chicken) except chicken Bangkok has the color of cream semen. Pelung chicken has a concentration of spermatozoa 5,043.33±51 million/mL, Nunukan chicken 3,250.22 ±45 million/mL, Sentul chicken 3,002.87±67 million/mL, and Bangkok chicken 3,002.87 ± 67 million/mL. Motility of Pelung chicken 84.,69 ± 1.12%, Bangkok chicken 82.35±1.85%, Nunukan chicken 77.74±1.57% and Sentul chicken 77.64±1.65%. Viability spermatozoa of Sentul chicken was 90.35 ± 1.21%, Bangkok chicken was 90.64 ± 1.16%, Pelung chicken was 89.17 ± 1.23% and Nunukan chicken was 86.29 ± 1.15%. It can be concluded that the motility spermatozoa of Pelung chicken and Bangkok chicken is better than the spermatozoa motility of Nunukan chicken and Sentul chicken. The viability of Sentul chicken and Bangkok chicken was higher compared to the viability semen of chicken Pelung and chicken Nunukan.


2015 ◽  
Vol 67 (3) ◽  
pp. 732-740 ◽  
Author(s):  
G.A. Fernandes Júnior ◽  
R.N.B. Lôbo ◽  
L.S. Vieira ◽  
M.M. Sousa ◽  
A.M.B.O. Lôbo ◽  
...  

The aim of this study was to compare the following four genetic groups of hair sheep: Santa Inês (SI), Morada Nova (MN), Brazilian Somali (BS), and the F1 1/2Dorper x 1/2Morada Nova crossbreed on traits related to growth and parasitic infection. Thirty-three male lambs of the same age and of simple birth, under the same pre-weaning management conditions were used in the experiment. After weaning the animals were housed in a completely randomized design in paddocks made of Panicum maximum cv. Tanzania. Along the course of the research, the performance of the four groups of sheep was observed to be negatively affected by gastrointestinal parasites, but there was a genotype effect to the average daily weight gain (ADWG), where the SI and F1 genotypes presented higher values. The effects of genotype, time and genotype x time interaction were significant in weight and corporal score (CS) measurements. The BS lambs had the highest CS values throughout the experiment despite not presenting greater weight gain when compared to the SI and F1 breeds. There were also significant effects of time and genotype x time interaction for packed cell volume (PCV) and FAMACHA© score (FAM) and only the time effect was significant in the total number of eggs per gram (EPG) and total plasma protein (TPP). The MN lambs showed higher PCV values and unlike the other groups, presented a FAMACHA© score below 3 and PCV above 23% even having a higher EPG tendency, especially in the initial phase, indicating a possible higher resilience to infection caused by gastrointestinal parasites.


Author(s):  
Javier J. Cantón-Castillo ◽  
Rosendo A. Alcaraz-Romero ◽  
Ricardo A. Chiquini-Medina ◽  
A. Maya-Martínez

Objective: To determine the apparent digestibility (AD) of diets with hydroponic green corn forage (HGCF) and to evaluate its effect on the dry matter (DM) intake and daily weight gain (DWG) of lambs. Design/methodology/approach: Two experiments using four levels of inclusion (0, 20, 40, 60% DM) of HGCF in the diet were carried out. For determine the AD of diet 16 sheep were used and for the growth evaluation 20 male lambs. A completely randomized design in both studies was used. Results: A higher AD of DM and crude protein in diets with 40% and 60% of HGCF was observed (P<0.05; P<0.01). Lambs from 0 and 20% HGCF treatment had a higher DWG. A lower DM intake in 60% HGCF diet was registered (P<0.05). Limitations on study/implications: Currently there are various methods to supplement sheep during dry season, however, few are fully adapted to the needs of farmers. Hydroponic green corn forage is a valuable alternative for fast and constant production of forage with high nutritional value for sheep. Findings/conclusions: Hydroponic green corn forage has high digestibility, therefore, it can be used as an excellent source of forage in the diet of lambs, obtaining appropriate weight gains with rations that include up to 40% in the diet to replace commercial food.


Author(s):  
W Ibrahim ◽  
Nurhayati Nurhayati ◽  
R Mutia ◽  
M Hilmi

This study aimed to determine the effect of using fermented pineapple peel in the ration containing medicinal weeds on broiler chicken performance. The experiment was designed into a completely randomized design (CRD) with five treatments and five replicates. Treatments consisted of P0 = 0% of fermented pineapple peels meal (FPPM) in ration containing 0% medicinal weed (MW), positive control). P1 = 0% of fermented pineapple peels meal (FPPM) in the ration containing 2 % medicinal weed (MW), negative control). P2 = 7.5% of FPPM in the ration containing 2 % medicinal weed (MW). P3 = 15% of FPPM in the ration containing 2 % medicinal weed (MW). P4 = 22,5% of FPPM in the ration containing 2 % medicinal weed (MW). Two hundred two days of male broiler chicken were used in this study and kept for 42 days. The parameters were feed consumption, average daily weight gain, feed conversion ratio, slaughter weight. The observed data were analyzed by statistical product and service solution (SPSS 16.0), and Duncan's multiple range test tested significant effects among treatments. Results showed that the fermented pineapple peel meal up to 15% with other medicinal weeds was not influenced the broiler chicken performance.


Author(s):  
Juan Noguez-Estrada ◽  
Tania Aguilar-Priciliano ◽  
Jorge Vargas-Monter ◽  
Leodan Tadeo Rodríguez-Ortega

The objective was to evaluate the productive and economic parameters of pigs in the final stage with three commercial feeding programs. 240 pigs with homogeneous characteristics were used, assigning 40 females and 40 males completely random to the treatments. The animals were fed with 3 diets in flour containing different level of protein: T0 (16 %), T1 (16.42 %) and T2 (17.51). For the analysis of the information, a completely randomized design was used, the means were contrasted with the Tukey test. There were no significant differences (P> 0.05) for the evaluated variables, with the highest consumption of dry matter (CDM) recorded in the T1 (2,065), followed by T2 (2,063) and T0 (1,931 kg.). The daily weight gain (DWG) was for T2 of 0.863 grs., T1 with (0.858) and for T0 of 0.826 grs. With a food conversion (FC) for the proposal T0 of 2,562, T1 (2,671) and T2 3,027 kg. The pigs fed with T1 recorded a cost of 16,869 / Kg. of live weight, followed by T2 with $ 14,556 and obtaining more profitability with T0 when obtaining a cost of $ 13,248. The productive behavior between treatments was similar, but the best profitability is obtained with the T0.


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