Results 71 to 80 of about 55,813 (284)
Poor diet quality (diet diversity and animal‐source food [ASF] consumption) during childhood negatively affects growth, development, behaviour and physiologic function in later life. Relatively less is known about the impact of poor diet on the growth of
Laurie C. Miller +3 more
doaj +1 more source
ABSTRACT This study aimed to estimate the variance components, heritabilities and genetic correlations between four new different categories of stayability (STAY48‐2, STAY48‐3, STAY54‐2, STAY54‐3) with weight at 240 days of age (W240), weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at puberty in males (APM ...
Letícia Silva Pereira +5 more
wiley +1 more source
ABSTRACT The aim of the present study was to infer genetic (co) variance components and to estimate parity‐specific breeding values for the female fertility traits non‐return rate after 56 days, the interval from calving to first service and days open by applying random regression models on a time‐dependent parity scale. In this regard, we considered a
Sina Sakhaei‐far +2 more
wiley +1 more source
Nghiên cứu được thực hiện nhằm xác định các yếu tố ảnh hưởng đến sự gắn bó của người lao động có trình độ đại học trở lên trong các doanh nghiệp ở thành phố Cần Thơ (TPCT). Tác giả phỏng vấn 165 nhân viên ở 50 doanh nghiệp trên địa bàn TPCT.
Quan Minh Nhựt +1 more
doaj
Enteric methane (CH4) emissions from young ruminants contribute to a substantial proportion of atmospheric CH4 accumulation. Development of emission inventory and mitigation approaches needs accurate estimation of individual emission from animals under ...
Lifeng Dong, Binchang Li, Qiyu Diao
doaj +1 more source
Genetic Parameters of Age at Conception in Nellore Females Using Threshold Models
ABSTRACT Age at conception is a critical factor in the intensification of production systems. It is crucial for intensifying production, optimising reproductive efficiency and boosting Nellore female productivity for genetic progress. However, the low heritability estimates currently limit the effectiveness of selection responses, thereby underscoring ...
Raimundo Nonato Colares Camargo Júnior +10 more
wiley +1 more source
Genetic Evaluation of Beef Sires Using a Beef‐on‐Dairy Crossbred Reference Population
ABSTRACT In recent years, Beef‐on‐Dairy (BoD) crossbreeding programs have gained momentum to enhance dairy cattle's economic and genetic merits while meeting the demand for high‐quality beef. However, bulls with superior growth potential can lead to calving problems; thus, Holstein dairy farmers must decide which semen to use to avoid calving problems ...
Julius Mugambe +4 more
wiley +1 more source
The Correlation of Body Morphological Size Toward the Body Weight of PO Steers and Heifers
. The study was conducted to determine the correlation between the body morphology size of PO steers and heifers which kept in the group housing of Litbangtan Models.
Jauhari Efendy +2 more
doaj +1 more source
Genetic Parameters for Novel Feedlot Profitability‐Related Traits in Nelore Cattle
ABSTRACT This study aimed to estimate (co)variance components and genetic parameters for accumulated profitability (AFP) and profit per kilogram of liveweight gain (PFT), and their relationships with weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at first calving (AFC), probability of precocious calving at 30 ...
Letícia Pereira +9 more
wiley +1 more source
ABSTRACT Enhancing female longevity through regular calvings improves herd replacement rates and reduces the costs associated with replacing low reproductive efficiency animals. Stayability (STAY), defined as a cow's ability to remain productive in the herd, is a categorical trait that challenges traditional genetic evaluation due to its non‐normal ...
Letícia Silva Pereira +5 more
wiley +1 more source

