Planos nutricionais de lisina digestível para suínos machos imunocastrados em crescimento e terminação

Kiefer, Charles; Donzele, Juarez Lopes; Oliveira, Rita Flávia Miranda de

doi:10.1590/s1516-35982011000900016

Cited by 8 publications

(11 citation statements)

References 16 publications

(23 reference statements)

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“…This is coherent with other studies (Kill et al, 2003;Kiefer et al, 2010;Alebrante et al, 2012a) that evaluated nutritional plans based on lysine levels for pigs in the growing-finishing phases and found no effect of nutritional plans on the voluntary feed intake.…”

Section: Resultssupporting

confidence: 91%

“…Improvement in the FC in the initial phases and no change at the end of the experimental period were also reported by Souza (2009) and Alebrante et al (2012a,b). However, Kiefer et al (2010) reported that pigs fed a nutritional plan of DLys (11-10-9 g/kg) showed better FC compared with the other nutritional plans studied (9-8-7, 10-9-8 and 12-11-10 g/kg).…”

Section: Resultsmentioning

confidence: 84%

“…Souza (2009) and Alebrante et al (2012a) reported no effect of the nutritional plans on carcass characteristics. On the other hand, Kiefer et al (2010) reported that pigs fed the nutritional plan 11-10-9 g/kg of DLys showed reduced backfat thickness and increased carcass meat compared with other nutritional plans.…”

Section: Resultsmentioning

confidence: 96%

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Nutritional plans of digestible lysine for growing-finishing gilts

et al. 2014

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-This experiment was conducted to evaluate nutritional plans of digestible lysine (DLys) for growingfinishing gilts. Eighty gilts with 63 days of age and an initial weight of 24.2±1.52 kg were distributed in a completely randomized block design, with five nutritional plans of DLys (9-8-7, 10-9-8, 11-10-9, 12-11-10, and 13-12-11 g/kg, from 63 to 103, 104 to 133, and 134 to 153 days of age, respectively) and eight replicates. Pigs were housed in pairs and fed their respective diets ad libitum throughout the experimental period (90 days). To monitor the animal development along the experiment at 103 and 133 days, gilts were weighed and subjected to analysis of ultrasound for evaluation of loin depth (longissimus dorsi) and backfat thickness. At the end of the experiment (153 days of age) the animals were weighed, and after slaughter carcasses were evaluated individually using a typifying pistol to evaluate the percentage and the content of carcass meat, loin depth and backfat thickness. From 63 to 133 days, there was no effect of the nutritional plans on daily feed intake, performance, or backfat thickness; however the loin depth was greater in the gilts that received plans with high levels of DLys (12-11; 13-12 g/kg) compared with the plan with the lowest level (8-7 g/kg). For the entire period (63 to 153 days), no influence of the nutritional plans was observed on the daily feed intake, performance variables, or carcass characteristics. A nutritional plan containing 9-8-7 g/kg of digestible lysine fed from 63 to 103, 104 to 133 and 134 to 153 days, respectively, meets the requirements for performance and carcass characteristics of growing-finishing gilts.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 84%

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Nutritional plans of digestible lysine for growing-finishing gilts

et al. 2014

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“…Da mesma forma, Gomes et al (2000) não observaram efeito dos planos nutricionais baseados em níveis de lisina digestível sobre o consumo de ração em suínos machos castrados dos 30 aos 100 kg. Posteriormente, Kill et al (2003) (Kiefer et al, 2011) e machos não castrados (Kiefer et al, 2012).…”

Section: Resultsunclassified

“…A maioria das pesquisas desenvolvidas para avaliar o efeito de planos de nutrição utilizam animais do mesmo sexo como machos castrados (Souza Filho et al, 2000;Fortes et al, 2011), fêmeas (Kill et al, 2003) ou machos imunocastrados (Kiefer et al, 2011). Porém na prática, observa-se que várias granjas comerciais adotam a criação dos suínos em lotes mistos de machos castrados e fêmeas.…”

Section: Introductionunclassified

Planos nutricionais de lisina para suínos da fase inicial a terminação

Adicionais¹

2012

ARCH ZOOTEC

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RESUMOEste estudo foi conduzido com o objetivo de avaliar planos nutricionais de lisina para suínos criados em lotes mistos, dos 63 aos 164 dias de idade. Foram utilizados 240 animais, com peso inicial de 24,6±1,5 kg, distribuídos em delineamento de blocos ao acaso com quatro planos nutricionais (A: 1,05-0,88-0,82-0,78-0,78; B: 1,05-0,87-0,80-0,76-0,76; C: 1,05-0,85-0,77-0,71-0,71 The nutritional plan corresponding to sequence C, respectively, for pigs from 63 to 74 days, 63 to 89 days, 63 to 111 days, 63 to 135 days and 63 to 164 days meet the nutritional needs and maximizes the performance and carcass traits of the initial at finishing phase.

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Lysine requirement for growing-finishing immunocastrated male pigs

Alebrante

Donzele

et al. 2015

Trop Anim Health Prod

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Eighty boars (19.3 ± 2.49 kg) were vaccinated twice (100 and 128 days of age) against gonadotropin releasing hormone (Vivax™ vaccine), for a randomised block design study aiming to evaluate five digestible lysine (DLys) level treatments, with three phase-feeding per treatments (9-8-7; 10-9-8; 11-10-9; 12-11-10 and 13-12-11 g/kg) during the growing-finishing phases (54-100, 100-128 and 128-155 days of age, respectively). Pigs were fed their respective diets ad libitum from 54 to 155 days and weighed at 100, 128 and 155 days. Pig loin (Longissimus dorsi) area, loin depth and backfat thickness were measured by ultrasound at 100 and 155 days. Hot carcass weight, meat quantity and meat yield were measured at slaughter. From 54 to 100 days (pre-immunocastration), DLys levels linearly improved pig feed conversion and loin area, the level of DLys for minimum feed conversion and maximum loin area was 13 g/kg. However, DLys levels had no effect on the performance of boars from 54 to 128 days (pre-immunocastration), nor on the performance and carcass parameters of immunocastrated male pigs between 54 and 155 days. A sequence of diets containing 9, 8 and 7 g/kg of DLys fed from 54 to 100, 100 to 128 and 128 to 155 days, respectively, meet the requirement of growing-finishing immunocastrated male pigs.

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Planos nutricionais de lisina digestível para suínos machos imunocastrados em crescimento e terminação

Cited by 8 publications

References 16 publications

Nutritional plans of digestible lysine for growing-finishing gilts

Nutritional plans of digestible lysine for growing-finishing gilts

Planos nutricionais de lisina para suínos da fase inicial a terminação

Lysine requirement for growing-finishing immunocastrated male pigs

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