Phenotypic association between feed efficiency and feeding behavior, growth and carcass traits in Senepol cattle

Guimarães, André Lasmar; Mercadante, Maria Eugênia Zerlotti; Canesin, Roberta Carrilho; Branco, Renata Helena; Lima, Maria Lúcia Pereira; Cyrillo, Joslaine Noely dos Santos Gonçalves

doi:10.1590/s1806-92902017000100008

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…These authors found that, respectively, 22% and 18% of the variation in RFI was explained by feeding events. Nkrumah et al (2007) and Guimarães et al (2017) also observed a positive correlation between feeding duration and RFI. In Bos indicus, Gomes et al (2013) also observed less feeding time, and less time standing and more time lying, for more efficient animals.…”

Section: Discussionmentioning

confidence: 74%

“…Residual feed intake (RFI) is a measure of feed efficiency that permits to identify animals with similar performance but that differ in terms of energy requirements for maintenance and production. Evidence from beef cattle indicates that more efficient animals spent less time at the feed bunk than less efficient animals (GOMES et al, 2013;GUIMARÃES et al, 2017;KELLY et al, 2010), possibly saving energy in this activity and spending more time in sedentary activities. Furthermore, a higher feed efficiency of animals might be associated with less stress and lower circulating cortisol concentrations (GOMES et al, 2013;LLONCH et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Ingestive behavior and temperament of Nellore cattle classified for residual feed intake

Aldrighi¹,

Branco²,

Cyrillo³

et al. 2019

SCA

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The objective of this study was to evaluate the relationship between ingestive behavior, temperament and residual feed intake (RFI) in Nellore cattle. Sixty-two bulls and 56 heifers after weaning, housed in individual pens, were evaluated in individual performance tests. Animals were classified as low RFI ( 0.135 kg day-1; greater than mean plus 0.5 standard deviation). Ingestive behavior was evaluated for 24 h by direct observation, every 24 days in bulls or every 10 days in heifers. Temperament was assessed by flight speed, reactivity in mobile confinement, composite score, and serum cortisol measurement. The most efficient animals (low RFI, 5.6 kg DM day-1) consumed 7% less feed than animals with medium efficiency (mean RFI, 6.0 kg DM day-1) and 13% less than the least efficient animals (high RFI, 6.34 kg DM day-1). More feed efficient animals spent a longer time feeding and ruminating per kg of DM consumed. Similarly, more efficient animals consumed less DM per hour and ruminated less DM per hour, but made the same number of visits to the feed bunk. High-efficiency animals were 13% and 35% faster to walk 1.77 m after release from the scale than medium- and low-efficiency animals, respectively, suggesting a more reactive temperament without differences in reactivity, composite score, or serum cortisol. Feed efficiency is associated with ingestive behavior and temperament in Nellore cattle. More efficient animals consume and ruminate less feed over the same period of time than animals with medium and low feed efficiency. In addition, more efficient animals exhibit a faster flight speed and are more reactive than less efficient animals.

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Section: Discussionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Ingestive behavior and temperament of Nellore cattle classified for residual feed intake

Aldrighi¹,

Branco²,

Cyrillo³

et al. 2019

SCA

Self Cite

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“…Ingestive behavior traits allow for determining feeding patterns, which have been described to be strongly correlated with feed efficiency traits [ 15 , 16 ]. Positive and moderate phenotypic correlations between feeding behavior and RFI have been reported [ 5 , 9 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Positive and moderate phenotypic correlations between feeding behavior and RFI have been reported [ 5 , 9 , 17 ]. Studies have shown that high-efficiency animals (low RFI) spend less time on feed-related activities than low-efficiency animals (high RFI) [ 15 , 16 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Feeding and Drinking Behavior on Performance and Carcass Traits in Beef Cattle

Pires

Reolon

Abduch

et al. 2022

Animals

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Feed and water efficiency are important traits to improve beef cattle production’s economic and environmental sustainability. This study evaluated residual feed intake (RFI) and residual water intake (RWI) and their relationship with performance, ingestive behavior, and carcass traits in Caracu beef cattle. The data were analyzed using a generalized linear model with least squares means. The ingestive behavior, performance, and carcass traits were influenced by sex (p < 0.05). Males showed higher dry matter intake (DMI), average daily gain (ADG), mid-test metabolic weight (BW0.75), rib eye area, and rump fat thickness than females, besides spending more time drinking and eating. Low RFI animals exhibited higher DMI than high RFI animals. Low RWI animals ingested 3.89 L/d of water further than high RWI animals. The interaction between sex and RWI influenced the DMI, BW0.75, and backfat thickness. The ingestive behavior of low and high RFI animals was similar, although high RWI animals visited a smaller number of drinkers than low RWI animals. Water intake positively affects productive efficiency, and the combined use of RWI and RFI may help improve the selection of more efficient animals contributing to reducing the costs of beef cattle production and improving environmental sustainability.

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“…Evaluating four traits used in feed efficiency tests (ADG, DMI, feed conversion ratio, and RFI), ARCHER et al (2000) and WANG et al (2006) showed that ADG is the most variable trait, a fact that may explain the low correlation estimated in the present study between ADG in the two consecutive phases. GUIMARÃES et al (2017), evaluating Senepol cattle in two consecutive feed efficiency tests at yearling, also reported a correlation close to zero between ADG values and a high correlation between DMI and BW 0.75 . However, in contrast to the present study, the authors observed high correlations between the other feed efficiency traits (except for FC) and ingestive behavior obtained in the two phases (yearling and long yearling).…”

Section: Discussionmentioning

confidence: 79%

Residual feed intake of Nellore calves is not repeatable across pre and post weaning periods

Souza

Bis

Sakamoto³

et al. 2021

Cienc. Rural

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This study measured milk and solid feed intake in pre- weaning period and feed intake in postweaning period of Nellore calves, and to correlated them with performance traits and ingestive behavior of animals classified as most and least efficient. During pre weaning phase, feed efficiency was evaluated in 51 cow-calf pairs from 21±5 days after calving until weaning. During post-weaning phase, only male calves (n=23) were evaluated. Pre-weaning milk intake of calves was estimated based on cow’s milk production. Pre-weaning daily metabolizable energy intake (MEI) of calves was estimated as the sum of MEI from milk and solid diet. There was no difference in ADG between calves with negative and positive pre RFI, with a consequent better feed conversion to more efficient calves. The most efficient calves spent less time at the feed bunk, with a shorter feeding duration and higher rate of intake, compared to the least efficient animals. Correlations between feed intake and metabolic body weight of the animals during pre- and postweaning phases were positive, of medium to high magnitude, and significant, while correlation between ADG values was close to zero. Results suggested that part of the animals ranked based on pre weaning feed intake won’t maintain their rank during postweaning phase. In conclusion, calves classified as most efficient during pre-weaning phase have similar weight gain but lower milk intake and MEI than least efficient animals. The estimated pre RFI is weakly correlated with post RFI, showing that RFI is not consistent or repeatable across two periods.

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Phenotypic association between feed efficiency and feeding behavior, growth and carcass traits in Senepol cattle

Cited by 11 publications

References 31 publications

Ingestive behavior and temperament of Nellore cattle classified for residual feed intake

Ingestive behavior and temperament of Nellore cattle classified for residual feed intake

Effects of Feeding and Drinking Behavior on Performance and Carcass Traits in Beef Cattle

Residual feed intake of Nellore calves is not repeatable across pre and post weaning periods

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