Growing-finishing performance and carcass yield of pigs reared in a climate-controlled and uncontrolled environment

Berton, Mariana Piatto; Dourado, Rita de Cássia; Lima, Flávia Biondi Fernandes de; Rodrigues, A. B. B.; Ferrari, Fábio; Vieira, Leonardo Dimas do Carmo; Souza, Pedro Alves de; Borba, Hirasilva

doi:10.1007/s00484-014-0908-3

Cited by 14 publications

(18 citation statements)

References 11 publications

(11 reference statements)

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“…Swedish Landrace, Large White and Duroc are the three most numerous pure breeds of pigs in the Republic of Serbia, since they exhibit the most desired levels of production properties and provide economic gain. Pork is the most commonly consumed meat in the world (Berton et al, 2015). Many pig breeding programs have been based on estimation and improvement of lean traits (Kawecka at al., 2009) for many years, and this intensive work in breeding has led to significant progress in the meat content of pigs (Rekiel et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Meatiness of tested gilts in three consecutive years

et al. 2019

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In the present study, the aim was to determine the impact of the following factors: age, farm, and gilt genotype, as well as the regression impact of body weight at the end of the performance test on the following tested properties: age at the end of the test/final age (FA), lifetime daily gain (LDG), the backfat thickness measured in two places (according to the Main Breeding program for Central Serbia), the depth of the long back muscle (BM) and the estimated lean meat content/meatiness (M). The study included two farms of pigs (farm 1 and farm 2), for three consecutive years (year 1, year 2 and year 3). The number of tested heads per year was 974 (year 1), 1311 (year 2) and 757 (year 3). The tested gilts were of Swedish Landrace, Large White and Duroc breeds. The gilts originated from 97 sires, while the number of daughters per sires ranged from 10 to 100. The results show that the Duroc animals were the oldest (245 days), which had the highest values for both measures of backfat thickness, but the lowest values for meatiness. In the third study year, the lowest average values were determined for the properties of the LDG, BM and M. The female animals from the farm 1 showed less growth/gain and had lower values for the estimated meatiness. As a result of the study, it was established that all included factors had a very high statistically significant influence on the variation of the tested properties (P <0.001), only the genotype of gilts showed ahigh statistically significant effect on the BM property (P <0.01).

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Section: Introductionmentioning

confidence: 99%

Meatiness of tested gilts in three consecutive years

et al. 2019

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“…The results of this study were related to findings of Choi et al (2010), who showed the importance of environmental control through ventilation/misting installations for pigs by comparing automatic with manual ventilation systems. Berton et al (2015) also observed a worsening FC (P<0.05) for animals in the GF phase that were subjected to climatic variations (uncontrolled environment). The results reinforce the importance of a system for controlling the thermal sensation of animals, improving thermal comfort and performance.…”

Section: Discussionmentioning

confidence: 85%

Influence of production factors on feed intake and feed conversion ratio of grow-finishing pigs

Silva

Novais

Santos

et al. 2017

SCA

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The aim of this study was to identify and quantify, through mathematical models, the production factors of grow-finishing (GF) phases that influence the daily feed intake (DFI) and feed conversion ratio (FCR) in pigs. Sixty-five GF farms were evaluated between 2010 and 2013, linked to a cooperative system located in the western Parana State, Brazil, representing 463 batches, with a mean of 642.79 ± 363.29 animals per batch, equalling approximately 300,000 animals. Forty production factors were considered that related to management, sanitation, installations and equipment, nutrition, genetics and environment on the farms. The DFI was influenced by the barn's position relative to the sun (P = 0.048), initial body weight (P < 0.0001) and final body weight (P < 0.0001). It was observed that the FCR was influenced by the barn's position relative to the sun (P = 0.0001), the use of humidifiers/misting (P = 0.03), the presence of composters (P = 0.006), trees on the sides of barns (P < 0.045), the initial body weight of the pigs (P<0.0001) and duration of the grow-finishing phase (P < 0.0001). The variables selected in the models explained approximately 44 and 20% of the total variance in the DFI and FCR, respectively, demonstrating that this resource is a good tool for interpreting the factors related to the parameters evaluated. Key words: Management. Multilevel modelling. Swine. ResumoObjetivou-se neste estudo identificar e quantificar, através de modelos matemáticos, os fatores de produção presentes em unidades de crescimento e terminação (CT) de suínos que influenciam os parâmetros consumo diário de ração (CDR) e conversão alimentar (CA). Foram avaliados o histórico produtivo de 65 granjas de CT entre os anos de 2010 e 2013, vinculadas a um sistema cooperativo localizado na região oeste do Estado do Paraná, Brasil, representando 463 lotes com média de 642,79 ± 363,29 animais por lote, totalizando aproximadamente 300.000 animais. Foram considerados 40 fatores de produção relacionados ao manejo, sanidade, instalações e equipamentos, nutrição, genética e ambiente. Observou-se que o CDR foi influenciado pela posição dos barracões em relação ao sol (P = 0,048), pelo peso de entrada (P < 0,0001) e de saída (P < 0,0001). Para a variável CA a posição dos barracões em relação ao sol (P = 0,0001), o uso de umidificadores/nebulizadores (P = 0,03), a presença de composteira (P = 0,006) e de árvores nas laterais dos barracões (P = 0,045), o peso de entrada (P < 0,0001) e a duração da fase de CT (P < 0,0001) influenciaram o parâmetro. As variáveis selecionadas nos modelos explicaram aproximadamente 44 e 20% da variância total do CDR e CA, respectivamente, sendo este recurso uma boa ferramenta para interpretar os fatores relacionados com os parâmetros avaliados. Palavras-chave: Manejo. Modelagem multinível. Suínos.

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“…When Berton et al (2015) started this study by evaluating performance and carcass yield, they concluded that animals raised in an uncontrolled environment had a lower (P < 0.05) feed intake and poorer (P < 0.05) feed conversion than pigs raised in a controlled environment, but their weight gain was not affected (P > 0.05) by the treatments, suggesting that animals kept at room temperature, reared in sheds equipped with a shallow pool, perform better than those reared in a controlled environment. Animals raised in controlled and uncontrolled environments did not show differences (P > 0.05) regarding hot and cold carcass weights, carcass yield, and cooling loss.…”

Section: Introductionmentioning

confidence: 99%

Physical and chemical characteristics of the longissimus dorsi from swine reared in climate-controlled and uncontrolled environments

et al. 2017

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The aim of this study was to evaluate the effect of ambient temperature on the physical and chemical characteristics of the longissimus dorsi muscle by comparing the quality of meat from pigs reared in a controlled and in an uncontrolled environment, the latter provided with a shallow pool. Twenty castrated male pigs of the Topigs line were randomly allotted to two treatments: a controlled environment, with constant temperature (22 °C) and relative humidity (70%); and an uncontrolled environment in a conventional shed for rearing pigs equipped with a shallow pool, where pigs were subject to climatic variations. Meat from pigs kept in the controlled environment showed a greater capacity to retain intracellular water, higher tenderness, and lower cholesterol levels than meat from pigs reared in the uncontrolled environment, but displayed higher lipid oxidation and a lower concentration of DHA. Treatments had no effect on color, pH, chemical composition, or fatty acid profile (except DHA concentration). Rearing pigs in sheds equipped with a shallow pool minimizes the effects of environmental heat on meat quality, allowing the production of high-quality meat in warm climate regions without expensive investments. Animals reared in an uncontrolled environment equipped with a shallow pool are able to produce meat with characteristics within the quality standards and with similar quality to that of meat from animals raised in controlled environment.

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Growing-finishing performance and carcass yield of pigs reared in a climate-controlled and uncontrolled environment

Cited by 14 publications

References 11 publications

Meatiness of tested gilts in three consecutive years

Meatiness of tested gilts in three consecutive years

Influence of production factors on feed intake and feed conversion ratio of grow-finishing pigs

Physical and chemical characteristics of the longissimus dorsi from swine reared in climate-controlled and uncontrolled environments

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