Replacement of soybean meal by treated castor meal in supplements for grazing heifer during the dry-rainy season period

Barros, Lívia Vieira de; Paulino, Mário Fonseca; Detmann, Edênio; Filho, Sebastião de Campos Valadares; Lopes, Sidnei Antônio; Rocha, A. A.; Valente, Ériton Egídio Lisboa; Almeida, Daniel Mageste de

doi:10.1590/s1516-35982011000400019

Cited by 16 publications

(14 citation statements)

References 15 publications

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“…Maximum performance DWG was similar to that found by Barros et al (2011a) , offering 1.0 kg/d of supplement with 250 g CP/kg for heifers in Brachiaria decumbens in the rainy-dry transition season. On the other hand, Moraes (2010) , supplementing heifers with supplement with 400 g CP/kg at a rate of 840 g/animal/d during the same season, found ADG of 478 g.…”

Section: Discussionsupporting

confidence: 80%

Levels of Supplementation for Grazing Beef Heifers

Cabral¹,

Paulino²,

Detmann³

et al. 2014

Asian Australas. J. Anim. Sci

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The objective of this experiment was to evaluate the effect of providing different levels of a supplement on the nutritional characteristics and productive performance of heifers on pasture during the rainy-dry transition and dry season in Brazil or tropical area. Thirty crossbred heifers with predominance of Zebu breed were used in a completely randomized experimental design. Treatments consisted of a mineral supplement and 0.5, 1.0, 1.5, or 2.0 kg/animal/d of a protein supplement containing 300 g crude protein (CP)/kg of dry matter (DM). In the rainy-dry transition season there was quadratic effect of the protein supplementation (p<0.10) on daily weight gain (DWG). A linear relationship (p<0.10) was found between increasing supplement intake and intakes of DM, organic matter (OM), crude protein (CP), ether extract (EE), non fibrous carbohydrates (NFC) and total digestible nutrients (TDN). Coefficients of apparent digestibility of CP, EE, and NFC increased linearly (p<0.10) with increasing supplement levels, but there was no effect on the DM apparent digestibility (p>0.10); the microbial efficiency (g CPmic/kg TDN) and the relationship of microbial nitrogen flow with nitrogen intake (g/g nitrogen intake) were negative linear profiles. In the dry season, the descriptive pattern least squares means showed a trend of stabilization of DWG from the supply of 0.98 kg of protein supplement; the intakes of DM, OM, CP, EE, NFC, and TDN showed increasing linear relationship (p<0.10) with protein supplement levels; the means of apparent digestibility coefficients of the different dietary fractions presented a linear-response-plateau (LRP); the microbial nitrogen flow (g/d) showed positive linear profile (p<0.10) for supplementation levels. It is concluded that supplementation improves the productive performance of grazing heifers and that 1.0 kg/d of supplement per animal gives the maximum increment of weight gain.

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Section: Discussionsupporting

confidence: 80%

Levels of Supplementation for Grazing Beef Heifers

Cabral¹,

Paulino²,

Detmann³

et al. 2014

Asian Australas. J. Anim. Sci

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“…Thus, as CBM concentration was increased in the diet, CP digestibility was decreased because CP content in diets was kept very close. Similar to this work, Barros et al (2011) observed a linear decrease in DM and NDFap digestibility when grazing heifers were supplemented with CBM levels replacing soybean meal, 59 to 63 % for DM, and 64 to 68 % for NDFap digestibility. There was no effect (P≥ 0.15) of replacing soybean meal by CBM in supplements for grazing lambs on final BW, ADG, or BCS (Table 5).…”

supporting

confidence: 84%

Replacement of soybean meal with treated castor bean meal in supplements for grazing lambs

Freitas

Felix

Pedreira

et al. 2017

Rev. bras. saúde prod. anim.

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SUMMARY The objectives of this trial were to evaluate intake and nutrient digestibility, weight gain, and carcass characteristics of grazing lambs supplemented with increasing dietary inclusion of castor bean meal (CBM). Thirty-six Santa Inês-crossed, non-castrated, 120 ± 15 d old lambs (initial BW = 21.8 ± 3.4 kg) were randomly allotted to 1 of 4 dietary treatments. The treatments consisted of 4 levels of soybean meal substitution with lime treated CBM (0, 33, 67, and 100%) on the DM basis. The experimental design was a completely randomized design with 4 treatments and 9 replicates (lambs) for each treatment. Supplementation level was 1.6% BW per animal/d. There was a linear decrease (P<0.01) for total DM intake and a quadratic effect (negative; P = 0.05) for pasture intake as CBM was increased in the supplement. There was a negative quadratic effect of CBM inclusion on NDFap intake, both in g/d (P = 0.01) and as in BW % (P = 0.05). There was a linear effect (negative; P<0.01) on DM and NDFap digestibility coefficients. There were no effects (P≥0.48) of treatments on HCW, dressing percentage, carcass conformation, back fat or carcass length. Despite some negative effects on intake and nutrient digestibility, increasing CBM inclusion in the supplement, up to the substitution of all the soybean meal in the supplement, did not affect weight gain of grazing lambs or carcass characteristics.

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“…Esta hipótesis, coincide con trabajos realizados con subproductos de higuerilla en animales rumiantes, con niveles de inclusión entre 8 y 18 %, no se ve afectada la degradación de la MS y PB en dietas compuestas de forraje y concentrado 23,30,32,50,60 . En contraste otros autores reportan un efecto lineal decreciente sobre la degradación de la MS y PB, con el uso de niveles incrementales de inclusión de subproductos provenientes de la higuerilla 9,19,36 .…”

Section: Experimentounclassified

Evaluación de suplementos alimenticios conteniendo torta de higuerilla sobre la degradación in situ de dietas con pasto kikuyo y la producción lechera en vacas Holstein

Hernández¹,

Giraldo²

2017

Ces. Med. Vet. Zootec.

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Replacement of soybean meal by treated castor meal in supplements for grazing heifer during the dry-rainy season period

Cited by 16 publications

References 15 publications

Levels of Supplementation for Grazing Beef Heifers

Levels of Supplementation for Grazing Beef Heifers

Replacement of soybean meal with treated castor bean meal in supplements for grazing lambs

Evaluación de suplementos alimenticios conteniendo torta de higuerilla sobre la degradación in situ de dietas con pasto kikuyo y la producción lechera en vacas Holstein

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