Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency‐related traits in Nelore cattle

Kava, Rafaela; Peripolli, Elisa; Brunes, L. C.; Espigolan, Rafael; Silva, Simone Pedro da; Neto, João Barbosa da Silva; Londoño-Gil, Marisol; Sainz, Roberto Daniel; Lôbo, Raysildo Barbosa; Baldi, Fernando

doi:10.1111/jbg.12756

Cited by 5 publications

(1 citation statement)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is considerable interest, therefore, in identifying and multiplying cattle that have improved feed efficiency (Løvendahl et al, 2018;Davis and White, 2020). This applies to both extensive and intensive systems (Hietala and Juga, 2017;Kava et al, 2023). Associations between feed efficiency, methane production, and sustainability, have been known for more than 20 years (Arthur and Herd, 2005;Nkrumah et al, 2006;Freetly and Brown-Brandl, 2013).…”

Section: Balancing Feed Efficiency In Meat and Milk Production With F...mentioning

confidence: 99%

Applying assisted reproductive technology and reproductive management to reduce CO2-equivalent emission in dairy and beef cattle: a review

Baruselli,

Abreu,

Paula

et al. 2023

Anim. Reprod.

View full text Add to dashboard Cite

Methane emission from beef and dairy cattle combined contributes around 4.5-5.0% of total anthropogenic global methane. In addition to enteric methane (CH 4 ) produced by the rumen, cattle production also contributes carbon dioxide (CO 2 ) (feed), nitrous oxide (N 2 O) (feed production, manure) and other CH 4 (manure) to the total greenhouse gas (GHG) budget of beef and dairy production systems. The relative contribution in standard dairy systems is typically enteric CH 4 58%, feed 29% and manure 10%. Herds with low production efficiency can have an enteric CH 4 contribution up to 90%. Digestibility of feed can impact CH 4 emission intensity. Low fertility herds also have a greater enteric CH 4 contribution. Animals with good feed conversion efficiency have a lower emission intensity of CH 4 /kg of meat or milk. Feed efficient heifers tend to be lean and have delayed puberty. Fertility is a major driver of profit in both beef and dairy cattle, and it is highly important to apply multi-trait selection when shifting herds towards improved efficiency and reduced CH 4 . Single nucleotide polymorphisms (SNPs) have been identified for feed efficiency in cattle and are used in genomic selection. SNPs can be utilized in artificial insemination and embryo transfer to increase the proportion of cattle that have the attributes of efficiency, fertility and reduced enteric CH 4 . Prepubertal heifers genomically selected for favourable traits can have oocytes recovered to produce IVF embryos. Reproductive technology is predicted to be increasingly adopted to reduce generation interval and accelerate the rate of genetic gain for efficiency, fertility and low CH 4 in cattle. The relatively high contribution of cattle to anthropogenic global methane has focussed attention on strategies to reduce enteric CH 4 without compromising efficiency and fertility. Assisted reproductive technology has an important role in achieving the goal of multiplying and distributing cattle that have good efficiency, fertility and low CH 4 .

show abstract

Section: Balancing Feed Efficiency In Meat and Milk Production With F...mentioning

confidence: 99%

Applying assisted reproductive technology and reproductive management to reduce CO2-equivalent emission in dairy and beef cattle: a review

Baruselli,

Abreu,

Paula

et al. 2023

Anim. Reprod.

View full text Add to dashboard Cite

show abstract

Evaluation of Qazaq Aqbas bulls’ feed efficiency traits for breeding goals: A case study

Tilepova,

Arney,

Bostanova

et al. 2024

Smart Agricultural Technology

View full text Add to dashboard Cite

Incorporating body measurement traits to increase genetic gain of feed efficiency and carcass traits in Japanese Black steers

Kemmotsu,

Takeda,

Ogino

et al. 2024

Journal of Animal Science

View full text Add to dashboard Cite

The objective of the present study was to comprehensively evaluate whether body measurement traits, including BW and body size, could be used as indicators of genetic selection for feed efficiency and carcass traits in Japanese Black steers. First, we estimated the genetic parameters for body measurements, feed efficiency, and carcass traits. Second, we estimated the correlated responses in feed efficiency and carcass traits when selection was applied to one or multiple body measurement traits. In total, 4,578 Japanese Black steers with phenotypic values of residual feed intake (RFI) and residual BW gain (RG) as feed efficiency traits and carcass weight (CWT) and beef marbling standard (BMS) as carcass traits were used. Eleven body measurement traits were measured at the start and finish of the fattening periods (BMT1 and BMT2, respectively), and their growth during the fattening period (BMT3) was used for genetic analyses. The results of genetic parameters showed that the heritability estimates were low to moderate (0.10–0.66), and the genetic correlations among body measurement traits were also estimated to be positively moderate to high in each measuring point (0.23–0.99). The genetic correlations of body measurement traits with RFI and BMS were estimated to be low (-0.14–0.30 and -0.17–0.35, respectively), but those with CWT were positively low to high (0.12–0.97). The genetic correlation estimates between BMT3 and RG were moderate to high (0.38–0.78). Second, correlated responses were estimated under positive selection for body measurement traits. Positive selection for BMT2 and BMT3 increased CWT and RG; however, positive selection for body measurement traits resulted in no change in RFI and BMS. Favorable directions of genetic gains, which were positive for RG, CWT, and BMS and negative for RFI, were obtained by selection indices, including multiple traits in BMT1. Our results suggest that using only one body measurement trait as an indicator of genetic selection for RFI is difficult. However, body measurement traits can be indirect indicators of improved RG. Our results also suggest that genetic improvement of both RFI and RG without reducing CWT and BMS could be achieved using selection indices that account for a balance of body conformation using multiple body measurement traits in Japanese Black cattle.

show abstract

Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency‐related traits in Nelore cattle

Cited by 5 publications

References 78 publications

Applying assisted reproductive technology and reproductive management to reduce CO2-equivalent emission in dairy and beef cattle: a review

Applying assisted reproductive technology and reproductive management to reduce CO2-equivalent emission in dairy and beef cattle: a review

Evaluation of Qazaq Aqbas bulls’ feed efficiency traits for breeding goals: A case study

Incorporating body measurement traits to increase genetic gain of feed efficiency and carcass traits in Japanese Black steers

Contact Info

Product

Resources

About