Backfat Thickness
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. Nutritional plans of digestible phosphorus for gilts from 30 to 100 kg
ABSTRACT The objective of this study was to evaluate sequential digestible phosphorus levels for gilts from 30 to 100 kg. Sixty gilts were used, with an initial weight of 29.98±3.37 kg and final weight of 100.66±8.82 kg, distributed in a randomized block design, with five nutritional digestible phosphorus levels: 2.19-1.88-1.68, 2.69-2.38-2.18, 3.19-2.88-2
R. Bras. Zootec.. Publicado em: 25/11/2019
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2. Additional feeding during late gestation improves initial litter weight of lactating sows exposed to high ambient temperature
ABSTRACT The present study investigated the impacts of additional feeding (AF; containing 16% excess feed than control diet in the last two weeks of gestation) during late gestation period and different backfat thickness (BFT) including low (<20 mm) and high (≥20 mm) backfat on reproductive performance, litter size, blood metabolites, hormonal profiles, co
R. Bras. Zootec.. Publicado em: 28/10/2019
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3. Desempenho e termorregulação de porcas lactantes alojadas em diferentes localizações no interior de um galpão com sistema de resfriamento evaporativo em ambiente tropical
ABSTRACT The effects of housing lactating sows at different locations in a shed with evaporative cooling system (ECS) on their thermoregulation and reproductive and productive performance of the sow and the litter in summer were determined. 34 females were used in the three lines of cages at these locations: near the pad cooling; in the middle of the shed an
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
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4. Phenotypic correlation of characteristics in the gilt performance test with an average number of live-born piglets through all achieved births, during the reproductive exploitation
RESUMO A eficácia reprodutiva das porcas dita o nível de rentabilidade da própria produção, e o momento do teste e seleção de leitoas para reprodução (como os pais de uma geração futura) representa um momento muito importante. Dado o fato de que a seleção de leitoas para criação é parcialmente baseada no ganho de peso no teste, neste estudo e
Arq. Bras. Med. Vet. Zootec.. Publicado em: 10/10/2019
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5. Impact of reproductive and productive rates on levels of inbreeding and genetic gain of pigs through data simulation
ABSTRACT The objective of this study was to evaluate the impact of farrowing and mortality rates on inbreeding levels and genetic gain through data simulation. Data came from two real populations A and B, composed of Pietrain and Landrace breed pigs, respectively. To generate the simulated populations, a Fortran-language simulator was developed using the (co
R. Bras. Zootec.. Publicado em: 15/08/2019
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6. Strategies to control inbreeding in a pig breeding program: a simulation study
RESUMO: O objetivo deste estudo foi avaliar, por meio de simulação de dados, o impacto das restrições no número máximo de irmãos completos e meios-irmãos selecionados para machos e fêmeas no nível de endogamia e ganho genético do rebanho. Os dados originais são provenientes das populações reais A e B, compostas por suínos da raça Pietrain e
Cienc. Rural. Publicado em: 10/07/2019
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7. Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed
ABSTRACT: We evaluated the inclusion of information on genetic relationship into the analysis of crude protein requirement in diets for pigs of Brazilian Piau breed, using Bayesian inference. The animals were assigned to treatments in a completely randomized design in factorial scheme 4 × 2 (crude protein levels × sex) with 12 repetitions per treatment. Th
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-05
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8. Creep feeding improves growth performance of suckling piglets
ABSTRACT The present study evaluated the optimal duration of creep feeding that improves the growth performance and fecal score of piglets and the performance and estrus interval of sows. Sixteen sows (Yorkshire × Landrace) and their litters were used in this 24-day trial. Dietary treatments were: Treatment 1, in which creep feed was not provided; treatment
R. Bras. Zootec.. Publicado em: 29/11/2018
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9. The requirement of valine for gilts in the initial phase is not influenced by moderate levels of leucine
ABSTRACT The objective of this study was to evaluate the standardized ileal digestible (SID) valine and SID leucine levels on performance, backfat thickness, longissimus dorsi depth, and biochemical blood parameters of starting gilts. A total of 72 gilts, with initial weight of 15.16±1.15 kg, were distributed in a randomized block design in a 2 × 4 factori
R. Bras. Zootec.. Publicado em: 21/05/2018
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10. Meat properties and fatty acid profile of swine fed cashew bagasse bran in qualitative food restriction program
ABSTRACT The purpose of this study was to evaluate the effects of qualitative dietary restriction diet on carcass characteristics, meat quality, fatty acid profile, and performance of finishing pigs fed diets containing cashew bagasse bran. Forty pigs (20 females and 20 males) with initial weight of 60.00±5.24 kg of body weight (BW) were used. The diets wer
R. Bras. Zootec.. Publicado em: 21/05/2018
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11. Changes in adipose cells of Longissimus dorsi muscle in Iberian pigs raised under extensive conditions
ABSTRACT Twenty-four Iberian castrated male pigs were used to characterize and evaluate the effect of the duration of “Montanera” in the adipocytes size and its relation with the backfat thickness and intramuscular fat. The animals were fed under extensive conditions during 30, 60 and 90 days in the “Dehesa” before slaughtered. Carcass weight, percen
An. Acad. Bras. Ciênc.. Publicado em: 2018-03
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12. Discrimination ability of Santa Inês and crossbred Santa Inês × Dorper lamb heavy carcasses by the Brazilian and European classification systems
ABSTRACT The ability of discriminating carcass characteristics of different fat cover scores of heavy carcasses, according to the European (EUS) and Brazilian (BRS) classification systems, was assessed. Fifty-six lambs, weighing between 26.25 and 46.15 kg, of the Santa Inês and crossbred Santa Inês × Dorper genetic groups were evaluated. The level of adip
R. Bras. Zootec.. Publicado em: 2017-06