Results 11 to 20 of about 239,150 (314)

Study on the Reproductive Performance and Problems in Crossbred Cows in Jalalabad, East of Afghanistan [PDF]

open access: yes, 2019
Livestock production is one of the most important economic and social activities in agriculture in Afghanistan. The present study aims to survey the reproductive performance of crossbred cows to address any major constraints of their reproduction in ...
Uenoyama, Yoshihisa   +7 more
core   +1 more source

Ants indirectly reduce the reproductive performance of a leafless shrub by benefiting aphids through predator deterrence [PDF]

open access: yes, 2020
Ant–aphid mutualisms can generate cas- cade effects on the host plants, but these impacts depend on the ecological context. We studied the consequences of ant–aphid interactions on the repro- ductive performance of a Mediterranean leafless shrub (Retama ...
Mezquida, E. T.   +2 more
core   +1 more source

The effect of school performance upon marriage and long-term reproductive success in 10,000 Swedish males and females born 1915–1929 [PDF]

open access: yes, 2010
Humans are an exceptionally intelligent species, and the selective pressures which may have shaped these advanced cognitive powers are therefore of interest.
Goodman, Anna   +4 more
core   +1 more source

Effects of Seasonal Factors in The Goats’ Reproductive Efficiency

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2019
Interest in goat farming is at its peak since the last decade of 20th century because the role of goat is well established in animal protein as well as in economic uplift of poor masses in the tropics and subtropics, but also constitutes an important ...
Usman Mir Khan   +3 more
doaj   +1 more source

Effect of housing enrichment and type of flooring on the performance and behaviour of female rabbits

open access: yesWorld Rabbit Science, 2021
This study investigated the effect of housing enrichments (scratching card, gnawing material and a platform), of a change in height and in the type of flooring on the live weight, reproductive performance and behaviour of female rabbits, as well as on ...
Yayu Huang   +7 more
doaj   +1 more source

Parental exposure to elevated pCO2 influences the reproductive success of copepods [PDF]

open access: yes, 2014
Substantial variations are reported for egg production and hatching rates of copepods exposed to elevated carbon dioxide concentrations (pCO2). One possible explanation, as found in other marine taxa, is that prior parental exposure to elevated pCO2 (and/
Lindeque, Penelope   +11 more
core   +1 more source

Analysis of Lactation, Reproductive Performance and Disorders of Dairy Cows in Waliso and Ilu Districts Oromia, Ethiopia

open access: yesمجلة ديالى للعلوم الزراعية, 2022
The aim of this study was to assess the lactation, reproductive performance, and disorders of dairy cows in Waliso and Ilu districts. A total of 122 respondents who participated in the production of dairy cattle were chosen at random and proportional to ...
Abera Fekata Dinkissa   +1 more
doaj   +1 more source

Association between clinical and subclinical mastitis and reproductive performance of cows at Nottingham dairy centre [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2021
Clinical and subclinical mastitis regarded as important diseases causes a reduction in reproductive performance in dairy cows in the UK during the last decade. This study was aimed to assess the association between clinical mastitis, subclinical mastitis
Zeravan A. Mohammed
doaj   +1 more source

Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows

open access: yesJournal of Animal Science and Technology, 2020
The adequate intake of energy and lysine for primiparous sows are necessary for maternal growth of sows and growth of their progeny.
Jinsu Hong, Lin Hu Fang, Yoo Yong Kim
doaj   +1 more source

Genetic selection for lifetime reproductive performance [PDF]

open access: yesBioscientifica Proceedings, 2020
Genetic improvement of sow lifetime reproductive performance has value from both the economic perspectives of pork producers and the pork industry, but also from the perspective of ethical and animal welfare concerns by the general public. Genetic potential for piglets produced from individual litters is a primary determinant of lifetime prolificacy ...
openaire   +2 more sources

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